10.3 Carat Cushion Lab Grown Diamond Prices Comparison
As of April 2026, 10.3 carat cushion lab grown diamonds usually range from $1,685 to $70,618, with an average price of $9,653.In the last month, prices for these diamonds are up 1%.Compare 38 verified listings across 5 retailers tracked by CaratRadar.
10.3 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 38 verified 10.3-carat cushion lab grown diamonds listed across 5 online retailers. Prices in this segment range from $1,685 to $70,618, with an average asking price of $9,653 and a median of $7,922.
The price spread of $68,933 (97.6% 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.
38 diamonds tracked in this segment
Price range: $1,685 to $70,618
Average price: $9,653
Median price: $7,922
Available across 5 retailers
Savings potential: up to 97.6%
Price Range Overview
As of Apr 18, 2026Real market range for this carat, shape, and diamond type.
38
$1,685
$9,653
$7,922
$70,618
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 81.1%IGI | 10.31ct | Cushion | G | VS1 | Excellent
From $3,471
Compare at $18,320
Save 76.5%IGI | 10.31ct | Cushion | G | VVS2 | Excellent
From $3,961
Compare at $16,840
Save 67.3%IGI | 10.31ct | Cushion | F | VVS2 | Excellent
From $4,085
Compare at $12,475
Save 45.9%IGI | 10.31ct | Cushion | F | VVS2 | Excellent
From $12,475
Compare at $23,080
Save 81.7%IGI | 10.31ct | Cushion | E | VVS2 | Excellent
From $4,765
Compare at $26,010
Save 67%IGI | 10.31ct | Cushion | E | VVS2 | Excellent
From $4,761
Compare at $14,430
Save 80.6%IGI | 10.31ct | Cushion | F | VVS2 | Very Good
From $4,468
Compare at $23,030
Save 67.2%IGI | 10.32ct | Cushion | F | VVS2 | Excellent
From $4,090
Compare at $12,485
Save 67.2%IGI | 10.32ct | Cushion | F | VVS2 | Excellent
From $4,090
Compare at $12,485
Save 67%IGI | 10.32ct | Cushion | E | VVS2 | Excellent
From $4,765
Compare at $14,445
Save 67.2%IGI | 10.33ct | Cushion | F | VVS2 | Excellent
From $4,095
Compare at $12,495
Save 67%IGI | 10.33ct | Cushion | E | VVS2 | Excellent
From $4,770
Compare at $14,460
Save 67.3%IGI | 10.33ct | Cushion | F | VVS2 | Excellent
From $4,092
Compare at $12,495
Save 46%IGI | 10.33ct | Cushion | F | VVS2 | Excellent
From $12,495
Compare at $23,120
Save 58.1%IGI | 10.33ct | Cushion | F | VVS2 | Excellent
From $4,715
Compare at $11,252
Save 84.2%IGI | 10.34ct | Cushion | G | VS1 | Excellent
From $2,610
Compare at $16,515
Save 17.7%IGI | 10.34ct | Cushion | F | VVS2 | Very Good
From $23,050
Compare at $28,020
Save 67.2%IGI | 10.34ct | Cushion | F | VVS2 | Excellent
From $4,100
Compare at $12,510
Save 67.3%IGI | 10.34ct | Cushion | F | VVS2 | Excellent
From $4,096
Compare at $12,510
Save 67.3%IGI | 10.34ct | Cushion | F | VVS2 | Excellent
From $4,096
Compare at $12,510
Save 67.3%IGI | 10.34ct | Cushion | F | VVS2 | Excellent
From $4,096
Compare at $12,510
Save 76.6%IGI | 10.35ct | Cushion | F | VVS2 | Ideal
From $5,402
Compare at $23,070
Save 67.3%IGI | 10.35ct | Cushion | F | VVS2 | Excellent
From $4,100
Compare at $12,520
Save 67.3%IGI | 10.35ct | Cushion | F | VVS2 | Excellent
From $4,100
Compare at $12,520
Save 67.3%IGI | 10.35ct | Cushion | F | VVS2 | Excellent
From $4,100
Compare at $12,520
Save 63.4%IGI | 10.35ct | Cushion | F | VVS2 | Excellent
From $4,578
Compare at $12,520
Save 67.3%IGI | 10.36ct | Cushion | F | VVS2 | Excellent
From $4,104
Compare at $12,535
Save 67.3%IGI | 10.36ct | Cushion | F | VVS2 | Excellent
From $4,104
Compare at $12,535
Save 70.1%IGI | 10.36ct | Cushion | F | VVS2 | Ideal
From $6,905
Compare at $23,090
Save 67.3%IGI | 10.37ct | Cushion | F | VVS2 | Excellent
From $4,108
Compare at $12,545
Save 67.2%IGI | 10.39ct | Cushion | F | VVS2 | Excellent
From $4,120
Compare at $12,570
Save 67.3%IGI | 10.39ct | Cushion | F | VVS2 | Excellent
From $4,116
Compare at $12,570
Save 65.2%IGI | 10.39ct | Cushion | E | VS1 | Ideal
From $4,588
Compare at $13,170
Save 71.2%IGI | 10.39ct | Cushion | E | VVS2 | Excellent
From $7,505
Compare at $26,090
Save 15.4%IGI | 10.4ct | Cushion | G | SI1 | Ideal
From $9,060
Compare at $10,711
Save 67%IGI | 10.4ct | Cushion | E | VVS2 | Excellent
From $4,802
Compare at $14,560
Save 67.2%IGI | 10.4ct | Cushion | F | VVS2 | Excellent
From $4,120
Compare at $12,580
Save 80.2%IGI | 10.4ct | Cushion | F | VVS2 | Excellent
From $4,600
Compare at $23,280
Entry pricing in this category starts around $1,685.
What to Know When Shopping for 10.3 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $68,933 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 $7,922 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 38 comparable stones in this segment. Prices start around $1,685 and go up to $70,618.
Based on the latest market data, the average asking price is about $9,653 with a median around $7,922.
The observed spread is roughly $68,933 across tracked listings, which is about 97.6% 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 $7,922, 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 $68,933 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
10.2 Carat Cushion Lab Grown Diamond Prices
10.4 Carat Cushion Lab Grown Diamond Prices
10.1 Carat Cushion Lab Grown Diamond Prices
10.5 Carat Cushion Lab Grown Diamond Prices
10 Carat Cushion Lab Grown Diamond Prices
10.6 Carat Cushion Lab Grown Diamond Prices
9.9 Carat Cushion Lab Grown Diamond Prices
10.3 Carat Emerald Lab Grown Diamond Prices
10.3 Carat Radiant Lab Grown Diamond Prices
10.3 Carat Oval Lab Grown Diamond Prices
10.3 Carat Pear Lab Grown Diamond Prices
10.3 Carat Marquise Lab Grown Diamond Prices
Tracking Lab Grown inventory for 10.3 carat Cushion diamonds.