Oval Carat Size Buying Guide: Compare Size, Spread, and Value

Choosing an oval diamond sounds easy at first. Then you start comparing a 1.00 ct oval measuring 7.8 x 5.8 mm, a 1.50 ct oval around 8.9 x 6.6 mm, and a 2.00 ct oval near 9.5 x 7.2 mm, and the decision gets much less simple.

Most shoppers want the same answers. How big will the diamond look? How much finger coverage will it give on a size 4.5, 6.5, or 8 finger? How much more will the price jump as carat weight rises, from roughly $900-$1,600 for a 0.90 ct lab-grown oval to $2,800-$4,200 for a 1.00 ct lab-grown oval or much more for a natural GIA-graded stone? And will the ring feel balanced once it is set in a 14K white gold solitaire or a 950 platinum cathedral setting with a pavé band?

This oval carat size buying guide turns carat weight into something more useful: visible size, shape, certification context, and value across IGI, GIA, and GCAL graded diamonds.

Oval diamonds often look larger than many other cuts at the same carat weight. Their elongated outline creates more face-up spread, so a well-cut 1.20 ct F-VS2 oval with a 1.42 length-to-width ratio can deliver strong visual impact without requiring the same budget as a 1.20 ct F-VS2 round brilliant of similar visual presence.

A smart buy does not come down to carat alone. You also need to compare millimeter measurements, depth percentage, table percentage, cut character, setting style, finger size, and metal choice such as 14K yellow gold, 14K white gold, 18K rose gold, or 950 platinum. Get those pieces right, and the diamond usually looks better than a heavier stone chosen by weight alone.

I have helped hundreds of couples compare oval sizes, and the same pattern shows up again and again: the diamond that wins is rarely the one with the biggest number on the grading report. It is the one with balanced spread, bright faceting, a manageable bow-tie, and a report from a respected lab such as GIA, IGI, or GCAL.

What This Oval Carat Size Buying Guide Covers

A good oval carat size buying guide starts with one basic fact: carat is a weight measurement, not a size measurement. Two oval diamonds can both weigh 1.50 carats and still look different from the top, even when both carry VS2 clarity and F color on an IGI or GIA report.

Why does that happen? One stone may carry too much weight in the depth, such as a 65% depth oval with a smaller face-up outline. Another may spread that weight across the top, like a 60% depth oval with stronger visible dimensions around 9.0 x 6.7 mm.

Shoppers usually get better results when they compare four things together:

1. Millimeter dimensions
2. Finger coverage
3. Price changes at key carat marks
4. Overall balance in the finished ring

This oval diamond size guide focuses on the size ranges that drive most buying decisions, including how those stones look in a four-prong solitaire, a hidden halo basket, or a cathedral setting with a pavé band:

• 0.70 to 1.00 carat for value and daily wear
• 1.25 to 1.50 carats for a balanced luxury look
• 2.00 carats and up for bold presence

The details matter. Length-to-width ratio changes the outline. Cut quality affects brightness and spread. Setting style can make the center stone look larger or smaller. Finger size changes the whole impression too, especially when the ring is paired with a 1.8 mm band versus a 2.5 mm band.

Many shoppers prefer an oval ratio around 1.35 to 1.50 for a classic shape. On a size 4.5 finger, a 1.25 ct oval around 8.3 x 6.2 mm can already look prominent. On a size 8 finger, the same diamond may read as more restrained, particularly in a wide 14K white gold comfort-fit shank.

For reliable sizing context, shoppers often check standards from GIA, IGI, and GCAL. Each report helps confirm carat, color, clarity, polish, and symmetry, while market pricing also shows sharp jumps near 1.00, 1.50, and 2.00 carats, especially in natural diamonds with GIA certification.

If you would like to compare styles as you read, you can browse our engagement rings or build your ring online.

Why Oval Diamonds Often Look Bigger

Ovals carry size differently than round diamonds. Because the shape stretches across the finger, it often gives more visible length and a larger face-up look at the same carat weight, especially when compared with a round brilliant that keeps more of its spread in a compact circular outline.

A well-cut 1.00 carat oval often measures about 7.7 x 5.7 mm to 8.1 x 6.0 mm. A 1.50 carat oval often falls around 8.7 x 6.5 mm to 9.2 x 6.8 mm. A 2.00 carat oval often lands near 9.3 x 7.0 mm to 9.8 x 7.4 mm, depending on depth and ratio.

Those ranges are not fixed rules, but they give you a practical benchmark. In any oval carat size buying guide, millimeters tell a much clearer story than carat alone, whether the stone is an IGI-certified lab-grown oval or a GIA-certified natural oval.

Two stones with the same weight may face up differently for a few reasons:

• One is cut too deep and hides weight below the top view, such as a 64.5% depth 1.50 ct oval measuring only 8.5 x 6.3 mm
• One has a broader table and stronger spread, like a 58% table with a 60% depth and a wider outline
• One has a longer ratio around 1.47 that stretches visually across the finger
• One shows a heavy bow-tie effect that reduces brightness through the center

The bow-tie effect is the darker area that often appears across the center of an oval. Some bow tie is normal. Heavy bow tie can make the diamond look less lively and, in some cases, smaller than you would expect, even if the grading report lists an attractive F color and VS1 clarity.

Depth and table percentages matter here too. Many gem professionals suggest giving extra attention to ovals in these rough ranges when reviewing a GIA, IGI, or GCAL report:

• Depth: about 58% to 63%
• Table: about 53% to 63%
• Length-to-width ratio: about 1.35 to 1.50

These are helpful guideposts, not guarantees. GIA's fancy-shape education makes that clear: fancy cuts need visual review because numbers alone do not tell the whole story, especially for facets, contrast pattern, and bow-tie visibility.

Two oval diamonds with nearly identical specs can still have very different personalities in real life. One 1.20 ct F-VS2 oval may look crisp and lively in a 14K yellow gold six-prong solitaire, while another 1.20 ct F-VS2 oval with a heavier bow tie feels sleepier even before it is set.

Smaller Oval Carat Sizes: 0.70 to 1.00 Carat

For many shoppers, the smartest value sits below the 1 carat mark. Ovals from 0.70 to 1.00 carat can look refined, wearable, and well balanced without pushing the budget too hard, especially in lab-grown categories with IGI certificates.

This part of the oval carat size buying guide matters if you are trying to balance center stone size with better color, cleaner clarity, or a more detailed setting. A smaller oval often gives you room to improve the overall ring, such as moving from a plain 14K white gold solitaire to a hidden halo or cathedral pavé design, instead of spending everything on weight.

Common reasons buyers choose this range include:

• Lower total ring cost, often around $1,500-$3,500 for a complete lab-grown ring in 14K gold depending on center specs
• More flexibility on color or clarity, such as choosing E-F color and VS1-VS2 clarity instead of sacrificing to H-SI2
• Easier daily wear with lower-profile basket settings and practical 1.8 mm to 2.0 mm shanks
• Great pairing with slim, classic settings in 14K white gold or 18K yellow gold
• An elongated look even under 1 carat, especially around 0.85 ct to 0.95 ct

There are tradeoffs, of course. Smaller ovals give less finger coverage, especially on larger hands. If you want instant visual drama on a size 8 finger, this range may feel subtle unless it is paired with a halo or a three-stone design.

Still, many customers love this bracket because it feels polished and practical. It also tends to be one of the easiest ranges for getting strong cut quality without stretching the budget, whether you are buying an IGI-graded lab-grown diamond or a smaller GIA-graded natural stone.

A well-cut 0.85 ct or 0.90 ct oval can look elegant, intentional, and very polished, especially when the center stone is set east-west or north-south in a delicate 14K yellow gold solitaire with claw prongs.

Best Features of Sub-1 Carat Ovals

A typical 0.70 carat oval may measure around 6.8 x 5.0 mm. A typical 1.00 carat oval often lands near 7.7 x 5.7 mm to 8.1 x 6.0 mm, with a classic ratio often landing around 1.38 to 1.45.

On smaller fingers, these sizes can look surprisingly substantial. On medium or larger fingers, they usually read as elegant rather than bold, especially when set low in a four-prong basket with a 1.8 mm band.

If your goal is to make a modest size look bigger, these settings often help:

• Halo settings add visual width around the center with a border of 1.0 mm to 1.3 mm melee diamonds
• Hidden halo settings add sparkle and lift beneath the girdle line without widening the top view too much
• Slim pavé bands around 1.7 mm to 1.9 mm keep attention on the oval
• Thin solitaire shanks in 14K white gold can make the center stone stand out more

Broad market pricing varies by origin, color, clarity, and certification. A 0.75 ct lab-grown oval may sell around $700-$1,200, a 0.90 ct lab-grown oval around $900-$1,600, and a 1.00 ct lab-grown oval around $2,800-$4,200 depending on color, clarity, and cut character. Natural diamonds with GIA reports can run several times higher in the same size range.

You can shop our lab-grown diamonds to compare value and spread in this category.

Pros and Cons of a Smaller Oval

Pros

• Better value for budget-conscious shoppers, especially in IGI-certified lab-grown inventory
• Comfortable for daily wear in low-profile four-prong or bezel-inspired settings
• More room for stronger color, clarity, or setting details like a hidden halo or pavé bridge
• Classic look that rarely feels overdone in 14K white gold, 14K yellow gold, or 950 platinum

Cons

• Less finger coverage than larger sizes, particularly on ring sizes 7.5 and up
• Lower statement factor in simple solitaires with plain 2.2 mm bands
• Deep cuts can look smaller than expected, even at the same listed carat weight
• Fewer bold styling outcomes if size is your top goal

Mid-Size to Large Ovals: 1.25 to 2.50 Carats

Many shoppers spend the most time comparing options in this range. The 1.25 to 2.50 carat bracket gives you stronger finger coverage, clearer visual presence, and more obvious size jumps from one benchmark to the next.

Buyers often compare 1.25 vs 1.5 carat, 1.5 vs 2 carat, or 2 vs 2.5 carat because the visible change is real. The price jump is real too, with lab-grown prices often moving from roughly $3,200-$5,200 around 1.25 ct to $4,000-$6,500 around 1.50 ct and $6,500-$10,500 or more around 2.00 ct, depending on whether the stone is D-F color or G-H color and whether clarity is VS1, VS2, or SI1.

The upsides are easy to see:

• More noticeable center-stone presence, especially in solitaires and cathedral settings
• Better finger coverage on most hand sizes from size 5 through size 8
• Strong visual payoff from the oval shape with ratios around 1.40 to 1.48
• More impact in solitaire settings, hidden halos, and three-stone rings with tapered baguettes

The tradeoffs matter just as much. Prices climb fast at milestone weights. Bow-tie issues are easier to spot on larger stones. Inclusions can also become easier to see, depending on location and clarity grade, particularly in SI1 or SI2 stones with crystals near the center.

Once you move past 1.25 carats, cut discipline matters even more. A sleepy 2.00 ct oval with a heavy bow tie and weak contrast can look less lively than a bright 1.50 ct stone with stronger proportions, medium to slightly thick girdle, and better light return.

At StoneBridge, this is where shoppers start weighing emotion against practicality. The ring needs to feel exciting when the box opens, but it also needs to feel comfortable and believable for everyday life in settings like a 14K white gold cathedral pavé ring or a 950 platinum solitaire with a comfort-fit shank.

Best Features of 1.25 to 2.50 Carat Ovals

Here is how these sizes often feel in real life when viewed face-up and worn on a size 6.5 finger:

• 1.25 carat oval: a clear step up from 1 carat, still easy to wear in a 1.8 mm to 2.0 mm band
• 1.50 carat oval: a favorite for balance, presence, and flexibility in solitaire, hidden halo, or cathedral pavé settings
• 2.00 carat oval: bold enough to read as a statement ring, especially in a plain solitaire that leaves the outline exposed
• 2.50 carat oval: high visibility with a more dramatic look and greater need for secure prongs and a stable basket

Typical spreads often fall near these ranges:

Carat Weight	Approx. Dimensions
1.25 ct	8.2 x 6.1 mm to 8.5 x 6.3 mm
1.50 ct	8.7 x 6.5 mm to 9.2 x 6.8 mm
2.00 ct	9.3 x 7.0 mm to 9.8 x 7.4 mm
2.50 ct	10.0 x 7.5 mm to 10.7 x 8.0 mm

Solitaire rings highlight the oval's outline and length. Halo settings make a large oval look even more dramatic. Three-stone rings with tapered baguettes or half-moon side stones can add width and create a fuller profile across the finger, while a cathedral setting with a pavé band adds height and extra brilliance from small accent diamonds.

Many customers land in the 1.25 to 1.50 carat range after trying on larger options. It gives enough presence to feel special, but it usually stays easier to wear and easier to budget for, especially when paired with 14K white gold rather than the higher metal cost of 950 platinum.

Pros and Cons of a Mid-to-Large Oval

Pros

• Strong visual impact with obvious spread and elongation
• Better finger coverage, especially on size 6 through size 8 fingers
• More obvious oval shape and longer outline at ratios near 1.40 to 1.48
• Excellent fit for solitaire, hidden halo, cathedral pavé, and three-stone styles

Cons

• Higher budget requirements, especially above 1.50 ct and 2.00 ct thresholds
• More need for careful cut review using videos, ASET-style imagery when available, and certification details
• Setting security matters more, including prong thickness, gallery rail design, and basket stability
• Color and clarity tradeoffs may show more easily on larger face-up surfaces

Oval Carat Size Comparison Chart

A useful oval carat size buying guide should show what changes in real life, not just on the grading report. This chart compares spread, coverage, and price direction side by side using common market ranges for lab-grown stones with IGI or GCAL reports.

Oval Size	Approx. Dimensions	Visual Finger Coverage	Broad Price Trend*	Best For
0.70 ct	6.8 x 5.0 mm	Delicate to moderate	About $600-$1,000 lab-grown	Budget-focused buyers, minimal styles
0.85 ct	7.2 x 5.3 mm	Moderate	About $800-$1,400 lab-grown	Buyers who want value with a little more presence
1.00 ct	7.7 x 5.7 mm to 8.1 x 6.0 mm	Balanced	About $2,800-$4,200 lab-grown	Classic engagement ring shoppers
1.25 ct	8.2 x 6.1 mm to 8.5 x 6.3 mm	Noticeable	About $3,200-$5,200 lab-grown	Buyers who want stronger visibility
1.50 ct	8.7 x 6.5 mm to 9.2 x 6.8 mm	Strong	About $4,000-$6,500 lab-grown	Popular luxury-value sweet spot
2.00 ct	9.3 x 7.0 mm to 9.8 x 7.4 mm	Bold	About $6,500-$10,500 lab-grown	Statement-focused buyers
2.50 ct	10.0 x 7.5 mm to 10.7 x 8.0 mm	Very bold	About $9,000-$14,000+ lab-grown	Maximum-impact shoppers

*Price trends vary by natural or lab-grown origin, along with color, clarity, fluorescence, certification from GIA, IGI, or GCAL, and the visual severity of bow tie.

Use this chart in a practical way:

1. Start with millimeters. A well-spread 1.50 carat oval measuring 9.1 x 6.7 mm may look better than a deep 1.70 carat stone measuring only 8.9 x 6.5 mm.
2. Factor in finger size. The same diamond will not look the same on every hand, especially from size 4.5 to size 8.
3. Watch milestone weights. Price often rises faster than visible size, particularly at 1.00, 1.50, and 2.00 carats.
4. Match the band to the stone. Thin bands around 1.8 mm can make an oval look larger, while wide 2.5 mm to 3.0 mm bands can reduce center-stone dominance.

1 Ct vs 1.5 Ct vs 2 Ct Oval Comparisons

Many shoppers do not need ten size choices. They need help choosing between the three sizes they keep seeing online and in store, often in the same 14K white gold hidden halo or solitaire setting.

1 Ct vs 1.5 Ct Oval

A 1.5 carat oval usually looks clearly larger than a 1 carat oval in both length and coverage. The difference is visible in person, especially in a solitaire or thin pavé setting, where a 1.00 ct might measure around 7.9 x 5.9 mm and a 1.50 ct around 9.0 x 6.6 mm.

The bigger question is value. A 1.50 ct stone often carries a stronger premium than the spread increase alone might suggest. If you are torn, compare whether that Budget Works Harder in extra size or in better cut and setting quality, such as choosing a lively 1.20 ct F-VS2 oval with a hidden halo over a duller 1.50 ct G-SI1 oval.

1.5 Ct vs 2 Ct Oval

Moving from 1.5 carats to 2 carats creates a more obvious statement look. You will usually see more width, more finger coverage, and stronger presence from a conversational distance, particularly when moving from roughly 9.0 x 6.6 mm to 9.6 x 7.2 mm.

The price jump can be sharp, especially in natural diamonds with GIA reports. Some shoppers prefer a bright 1.50 ct oval in a hidden halo because it keeps the budget more flexible. Others want the unmistakable presence of 2 carats and do not mind trading down slightly in color or clarity, such as choosing G-VS2 instead of F-VS1.

1 Ct vs 2 Ct Oval

This is the easiest comparison to spot. A 2 carat oval delivers much more presence than a 1 carat oval, but it will not look exactly twice as large from the top because face-up area does not scale in a simple 1:1 way with carat weight.

That is because carat measures weight, not face-up surface area. In this part of the oval carat size buying guide, the best move is to compare dimensions, finger coverage, and total price side by side, while also checking how each stone performs in the same setting style and metal, such as 14K yellow gold versus 950 platinum.

Which Oval Carat Size Fits You Best?

The best oval size depends on what matters most to you, including budget, hand size, setting style, and whether you prefer to prioritize color and clarity grades like E-VS1 or F-VS2.

Choose 0.70 to 1.00 Carat If:

• You want to keep the budget efficient, often under about $3,500-$5,500 for a finished lab-grown ring depending on the setting
• You prefer a classic, understated look in a four-prong solitaire or low hidden halo
• You would rather improve color, clarity, or setting details than chase more carat weight
• You have a smaller finger size and do not need extra spread to get a balanced look
• You want an easy everyday ring in 14K white gold, 14K yellow gold, or 18K rose gold

Choose 1.25 to 1.50 Carats If:

• You want a noticeable jump from 1 carat without crossing into oversized proportions
• You like a balanced luxury look, especially in a cathedral setting with a pavé band
• You want strong coverage without going too large for daily wear
• You want a size range that suits many hand sizes from size 5 to size 8

Choose 2.00 Carats and Above If:

• You want a clear statement ring with obvious visual presence
• Finger coverage is a top priority on medium or larger hands
• You enjoy bolder jewelry and do not mind a higher-set basket or more visible center stone
• You are comfortable spending more for visible size, especially in GIA-graded natural diamonds or premium lab-grown inventory
• You understand the need for closer cut and setting review, including prong security and bow-tie visibility

Finger size changes the result more than many shoppers expect. A 1.25 ct oval can look bold on a size 4.5 finger and much more restrained on a size 8, even when the stone carries the same IGI report and identical measurements.

Setting style shifts the look too. Halos and slim bands can make a smaller center stone feel larger, while thicker bands can make a moderate stone seem less dominant. A 1.00 ct oval in a hidden halo with a 1.7 mm pavé band often reads larger than a 1.00 ct oval in a plain 2.5 mm solitaire shank.

If this is for a proposal or an anniversary gift, give yourself permission to think beyond numbers for a minute. The best ring usually is not the biggest one. It is the one that feels right the second they see that specific combination of center stone, setting profile, and metal color, whether that is 14K yellow gold, 14K white gold, or 950 platinum.

If you want more help with proportions, read our ring size guide or explore fine jewelry styles.

Best Oval Carat Size for Most Buyers

If you are looking for the safest starting point, begin around 1.00 to 1.50 carats. For many shoppers, 1.25 to 1.50 carats hits the best balance of visible size, wearability, and budget, particularly in lab-grown diamonds with IGI or GCAL reports.

Why does this range work so well?

• It shows off the oval shape clearly, often with face-up measurements around 8.2 x 6.1 mm to 9.2 x 6.8 mm
• It feels substantial without overwhelming most hands, especially on sizes 5.5 to 7.5
• It offers enough spread to stand on its own in a solitaire, hidden halo, or cathedral pavé ring
• It avoids some of the steepest price jumps above major milestones, especially compared with 2.00 ct and larger stones
• It leaves room for strong cut and secure setting choices like a gallery rail, double-claw prongs, or a cathedral shoulder design

Many buyers return to this range after comparing several options. It looks impressive, but it usually does not force as many compromises in color, clarity, or setting quality, so you can still target combinations like F-VS2 or G-VS1 instead of dropping deep into lower grades.

Plenty of shoppers start out convinced they need 2 carats, only to fall in love with a beautifully cut 1.40 or 1.50 carat once they see it on the hand. That happens often when the smaller stone has better spread, cleaner faceting, and a more balanced setting in 14K white gold or 950 platinum.

If visible size is your top goal, go higher. If overall quality matters more, sizing slightly down often gives you a stronger ring for the money, especially when the savings go toward better color, clarity, or a more refined setting style.

Shop by Oval Size and Setting Style

The best way to use an oval carat size buying guide is to compare sizes inside the settings you actually like. A 1.00 ct oval in a hidden halo can feel very different from a 1.00 ct oval in a plain solitaire, and both will read differently again in a cathedral setting with a pavé band.

Start with the size tier that fits your budget. Then compare the setting side by side, paying attention to metal type, shank width, head style, and how high the basket sits above the finger:

• Browse engagement rings by style
• Compare lab-grown oval diamonds
• Explore fine jewelry designs
• Create your ring in our builder

A confident purchase usually comes from seeing how spread, proportion, and setting work together. That is the real value of an oval carat size buying guide. Pick the size that looks right on the hand, not just the one that sounds bigger on paper, and verify the details on the GIA, IGI, or GCAL grading Report Before You commit.

Frequently Asked Questions About Oval Diamond Size

What is the best oval carat size for everyday wear?

For daily wear, many shoppers do well with an oval between 1.00 and 1.50 carats. That range usually offers enough finger coverage to feel special, but it still stays practical for work, travel, and regular wear. In a low-profile solitaire or hidden halo in 14K white gold, it often feels even more comfortable. If your finger size is smaller, you may find that a 1.00 to 1.25 carat oval measuring roughly 7.8 x 5.8 mm to 8.4 x 6.2 mm already looks quite substantial.

Does an oval diamond look bigger than a round diamond of the same carat weight?

Often, yes. An oval diamond usually shows more face-up spread than a round diamond of the same carat weight because its shape is longer and more elongated. A 1.20 ct oval may visually compete with a round brilliant that costs more at the same F-VS2 quality level. Keep in mind that a deep-cut oval with a strong bow tie will not always deliver the same visual advantage as a well-proportioned stone with a moderate depth and lively faceting.

Is a 1.5 carat oval noticeably bigger than a 1 carat oval?

Yes, in most cases it is. A 1.5 carat oval diamond usually looks noticeably larger than a 1 carat oval, especially in length and finger coverage. The easiest way to judge the difference is by checking millimeter measurements, not just the carat label, such as 9.0 x 6.6 mm versus 7.9 x 5.9 mm. If you are comparing two stones online, ask for dimensions, certification from GIA, IGI, or GCAL, and videos before deciding.

How do I choose between a 1 carat and 2 carat oval diamond?

Start with budget, finger coverage, and the kind of look you want every day. A 2 carat oval diamond gives much more presence, but the price jump can be significant, especially in natural stones with GIA grading. A 1 carat oval may let you buy better cut quality, cleaner clarity, or a more detailed setting such as a cathedral pavé ring in 14K white gold or 950 platinum. If you are stuck, compare both sizes in the same setting style so the difference is easier to judge.

What oval diamond proportions make a carat size look the best?

Look closely at length-to-width ratio, depth percentage, table percentage, girdle thickness, and bow-tie appearance. Many buyers prefer ratios around 1.35 to 1.50, since that range often gives a classic oval shape without looking too short or too narrow. Stones with too much depth can carry weight where you cannot see it, which hurts spread. For the best result, use the grading report from GIA, IGI, or GCAL as a filter and the stone's actual appearance in video as the final test.

Which certifications are best for oval diamonds?

The most common trusted options are GIA, IGI, and GCAL. GIA is widely recognized for natural diamonds, IGI is very common in lab-grown diamonds, and GCAL is known for detailed light-performance documentation on some stones. No certificate replaces visual inspection, but a respected grading report gives you a strong baseline for color, clarity, polish, symmetry, and exact millimeter measurements.

What setting looks best with an oval diamond?

That depends on whether you want maximum size appearance, extra sparkle, or a cleaner profile. A hidden halo can add brightness from the side without making the top look busy. A cathedral setting with a pavé band adds height and detail. A plain four-prong solitaire shows the outline most clearly. For a larger 2.00 ct plus oval, many shoppers like a sturdy basket in 950 platinum or 14K white gold for extra security.

How should I clean and care for an oval engagement ring?

Lab-grown diamonds and natural diamonds have the same hardness of 10 on the Mohs scale, so routine care is similar. Most diamond solitaires in 14K gold or 950 platinum are safe for an ultrasonic cleaner, but rings with fragile pavé, very thin prongs, or included center stones should be checked first by a jeweler. At home, soak the ring in warm water with mild dish soap, use a soft toothbrush under the gallery and around the prongs, rinse well, and have prong tightness inspected about every 6 to 12 months.