10.2 Carat Cushion Lab Grown Diamond Prices Comparison
As of February 2026, 10.2 carat cushion lab grown diamonds usually range from $2,657 to $21,560, with an average price of $5,155.In the last month, prices for these diamonds are up 0.9%.Compare 65 verified listings across 5 retailers tracked by CaratRadar.
10.2 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 65 verified 10.2-carat cushion lab grown diamonds listed across 5 online retailers. Prices in this segment range from $2,657 to $21,560, with an average asking price of $5,155 and a median of $4,386.
The price spread of $18,903 (87.7% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
These figures are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
65 diamonds tracked in this segment
Price range: $2,657 to $21,560
Average price: $5,155
Median price: $4,386
Available across 5 retailers
Savings potential: up to 87.7%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
65
$2,657
$5,155
$4,386
$21,560
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 14.6%10.16ct | Cushion | E | VS1 | Ideal
From $21,560
Compare at $25,250
IGISave 67%10.16ct | Cushion | FANCY | VS1 | Excellent
From $7,506
Compare at $22,739
IGISave 73.9%10.16ct | Cushion | E | VVS2 | Good
From $5,371
Compare at $20,576
IGISave 64.8%10.16ct | Cushion | E | VVS2 | Very Good
From $4,999
Compare at $14,220
IGISave 82.5%10.16ct | Cushion | E | VVS2 | Excellent
From $4,477
Compare at $25,510
IGISave 64.8%10.16ct | Cushion | E | VVS2 | Very Good
From $4,999
Compare at $14,220
IGISave 68.4%10.16ct | Cushion | F | VVS2 | Very Good
From $3,884
Compare at $12,290
IGISave 75.5%10.17ct | Cushion | F | VVS2 | Ideal
From $5,591
Compare at $22,780
IGISave 86.5%10.17ct | Cushion | E | VS1 | Ideal
From $3,427
Compare at $25,330
IGISave 68.4%10.17ct | Cushion | F | VVS2 | Very Good
From $3,888
Compare at $12,305
IGISave 68.4%10.17ct | Cushion | F | VVS2 | Very Good
From $3,888
Compare at $12,305
IGISave 75.5%10.17ct | Cushion | F | VVS2 | Ideal
From $5,591
Compare at $22,780
IGISave 68.4%10.17ct | Cushion | F | VVS2 | Very Good
From $3,888
Compare at $12,305
IGISave 84.7%10.18ct | Cushion | E | VS1 | Excellent
From $4,386
Compare at $28,600
IGISave 68.4%10.18ct | Cushion | F | VVS2 | Very Good
From $3,891
Compare at $12,315
IGISave 68.1%10.18ct | Cushion | F | VVS2 | Very Good
From $3,930
Compare at $12,315
IGISave 68.4%10.18ct | Cushion | F | VVS2 | Very Good
From $3,891
Compare at $12,315
IGISave 68.4%10.18ct | Cushion | F | VVS2 | Very Good
From $3,891
Compare at $12,315
IGISave 68.4%10.18ct | Cushion | F | VVS2 | Very Good
From $3,891
Compare at $12,315
IGISave 70.9%10.18ct | Cushion | E | VS2 | Ideal
From $3,626
Compare at $12,480
IGISave 84.7%10.18ct | Cushion | E | VS1 | Ideal
From $4,386
Compare at $28,600
IGISave 75.3%10.19ct | Cushion | E | VS1 | Ideal
From $6,276
Compare at $25,460
IGISave 78.8%10.19ct | Cushion | E | VVS2 | Excellent
From $5,455
Compare at $25,720
IGISave 55.7%10.19ct | Cushion | F | VVS2 | Ideal
From $5,289
Compare at $11,946
IGISave 75.8%10.19ct | Cushion | F | VVS2 | Excellent
From $5,498
Compare at $22,760
IGISave 83.1%10.19ct | Cushion | F | VVS2 | Excellent
From $3,857
Compare at $22,760
IGISave 68.7%10.2ct | Cushion | F | VVS2 | Excellent
From $3,860
Compare at $12,340
IGISave 56.7%10.2ct | Cushion | FANCY | VS2 | Good
From $2,657
Compare at $6,138
IGISave 77.5%10.21ct | Cushion | H | VS2 | Very Good
From $2,915
Compare at $12,980
IGISave 83.1%10.21ct | Cushion | F | VVS2 | Excellent
From $3,864
Compare at $22,810
IGISave 64.8%10.21ct | Cushion | E | VVS2 | Excellent
From $5,024
Compare at $14,290
IGISave 83.1%10.21ct | Cushion | F | VVS2 | Excellent
From $3,864
Compare at $22,810
IGISave 68.7%10.21ct | Cushion | F | VVS2 | Excellent
From $3,864
Compare at $12,350
IGISave 86.4%10.21ct | Cushion | F | VVS2 | Ideal
From $3,101
Compare at $22,760
IGISave 65.1%10.21ct | Cushion | E | VVS2 | Excellent
From $4,985
Compare at $14,290
IGISave 68.7%10.21ct | Cushion | F | VVS2 | Excellent
From $3,864
Compare at $12,350
IGISave 74.9%10.21ct | Cushion | F | VS2 | Ideal
From $7,146
Compare at $28,520
IGISave 83.1%10.22ct | Cushion | F | VVS2 | Excellent
From $3,868
Compare at $22,830
IGISave 64.9%10.22ct | Cushion | E | VVS2 | Excellent
From $5,028
Compare at $14,305
GIASave 48.3%10.22ct | Cushion | H | SI1 | Ideal
From $4,854
Compare at $9,381
IGISave 64.3%10.22ct | Cushion | G | VS2 | Ideal
From $4,706
Compare at $13,180
IGISave 72.7%10.22ct | Cushion | F | VVS2 | Very Good
From $6,224
Compare at $22,780
IGISave 78.8%10.23ct | Cushion | E | VVS2 | Excellent
From $5,477
Compare at $25,820
IGISave 83.1%10.23ct | Cushion | F | VVS2 | Excellent
From $3,872
Compare at $22,850
IGISave 78.8%10.23ct | Cushion | E | VVS2 | Excellent
From $5,477
Compare at $25,820
IGISave 64.1%10.23ct | Cushion | G | VVS2 | Excellent
From $4,764
Compare at $13,270
IGISave 83.1%10.23ct | Cushion | F | VVS2 | Excellent
From $3,872
Compare at $22,850
IGISave 83.1%10.23ct | Cushion | F | VVS2 | Excellent
From $3,872
Compare at $22,850
IGISave 83.1%10.23ct | Cushion | F | VVS2 | Excellent
From $3,872
Compare at $22,850
IGISave 27%10.23ct | Cushion | E | VVS1 | Very Good
From $21,090
Compare at $28,880
Entry pricing in this category starts around $2,657.
What to Know When Shopping for 10.2 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $18,903 or more.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $4,386 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Cushion cuts come in standard and modified brilliant varieties. Modified brilliants tend to show more fire, while standard cushions have broader facets.
Frequently Asked Questions
We currently track 65 comparable stones in this segment. Prices start around $2,657 and go up to $21,560.
Based on the latest market data, the average asking price is about $5,155 with a median around $4,386.
The observed spread is roughly $18,903 across tracked listings, which is about 87.7% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $4,386, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 5 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $18,903 across sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
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