2.9 Carat Cushion Lab Grown Diamond Prices Comparison
As of April 2026, 2.9 carat cushion lab grown diamonds usually range from $530 to $14,476, with an average price of $3,129.In the last month, prices for these diamonds are down 0.3%.Compare 522 verified listings across 10 retailers tracked by CaratRadar.
2.9 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 522 verified 2.9-carat cushion lab grown diamonds listed across 10 online retailers. Prices in this segment range from $530 to $14,476, with an average asking price of $3,129 and a median of $2,298.
The price spread of $13,946 (96.3% 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.
522 diamonds tracked in this segment
Price range: $530 to $14,476
Average price: $3,129
Median price: $2,298
Available across 10 retailers
Savings potential: up to 96.3%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
522
$530
$3,129
$2,298
$14,476
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 80.4%GIA | 2.9ct | Cushion | D | VVS2 | Excellent
From $2,186
Compare at $11,130
Save 77.3%GIA | 2.9ct | Cushion | D | IF | Excellent
From $3,972
Compare at $17,510
GIA | 2.9ct | Cushion | D | FL | Ideal
From $14,830
Compare at $15,405
Save 76.4%GIA | 2.9ct | Cushion | E | VVS1 | Excellent
From $2,346
Compare at $9,940
Save 82.3%GIA | 2.9ct | Cushion | D | VVS1 | Excellent
From $1,721
Compare at $9,730
Save 32.5%GIA | 2.9ct | Cushion | E | VS1 | Excellent
From $1,947
Compare at $2,884
Save 52.4%GIA | 2.9ct | Cushion | E | VS1 | Ideal
From $4,466
Compare at $9,380
Save 58.9%GIA | 2.9ct | Cushion | I | VVS2 | Ideal
From $3,538
Compare at $8,600
Save 72.9%GIA | 2.9ct | Cushion | D | VVS2 | Excellent
From $2,200
Compare at $8,120
Save 76.1%GIA | 2.9ct | Cushion | D | VVS2 | Ideal
From $1,943
Compare at $8,120
Save 74.1%GIA | 2.9ct | Cushion | E | IF | Excellent
From $3,312
Compare at $12,770
Save 77.3%GIA | 2.9ct | Cushion | D | IF | Excellent
From $3,972
Compare at $17,510
Save 55.9%GIA | 2.9ct | Cushion | E | VVS2 | Ideal
From $2,019
Compare at $4,578
Save 60.6%IGI | 2.9ct | Cushion | H | VS1 | Ideal
From $3,770
Compare at $9,560
Save 20.8%IGI | 2.9ct | Cushion | H | VS1 | Ideal
From $2,060
Compare at $2,600
Save 80.7%IGI | 2.9ct | Cushion | F | VVS2 | Ideal
From $1,188
Compare at $6,170
Save 71.5%IGI | 2.9ct | Cushion | D | VVS1 | Ideal
From $2,703
Compare at $9,470
Save 72.4%IGI | 2.9ct | Cushion | D | VVS1 | Ideal
From $3,613
Compare at $13,080
Save 80.5%IGI | 2.9ct | Cushion | F | VS1 | Ideal
From $1,059
Compare at $5,440
Save 80.5%IGI | 2.9ct | Cushion | F | VS1 | Ideal
From $1,059
Compare at $5,440
IGI | 2.9ct | Cushion | D | VS1 | Very Good
From $6,987
Compare at $6,990
Save 72.7%IGI | 2.9ct | Cushion | E | VVS1 | Ideal
From $1,435
Compare at $5,260
Save 71.4%IGI | 2.9ct | Cushion | D | VVS1 | Very Good
From $2,703
Compare at $9,450
Save 61.6%IGI | 2.9ct | Cushion | E | VS2 | Ideal
From $900
Compare at $2,345
Save 73%IGI | 2.9ct | Cushion | E | VS1 | Ideal
From $998
Compare at $3,700
Save 61.6%IGI | 2.9ct | Cushion | E | VS2 | Ideal
From $900
Compare at $2,345
Save 74%IGI | 2.9ct | Cushion | F | VVS1 | Ideal
From $1,846
Compare at $7,110
Save 78.7%IGI | 2.9ct | Cushion | D | VS1 | Very Good
From $1,203
Compare at $5,650
Save 61.4%IGI | 2.9ct | Cushion | F | IF | Ideal
From $3,685
Compare at $9,550
Save 66.9%IGI | 2.9ct | Cushion | D | VVS2 | Very Good
From $2,659
Compare at $8,030
Save 37.1%IGI | 2.9ct | Cushion | E | VVS2 | Excellent
From $992
Compare at $1,577
Save 74.4%IGI | 2.9ct | Cushion | D | VS1 | Excellent
From $1,074
Compare at $4,200
Save 31.6%IGI | 2.9ct | Cushion | FANCY | SI1 | Very Good
From $1,465
Compare at $2,142
Save 37.1%IGI | 2.9ct | Cushion | E | VVS2 | Excellent
From $992
Compare at $1,577
Save 37.1%IGI | 2.9ct | Cushion | E | VVS2 | Excellent
From $992
Compare at $1,577
Save 54.8%IGI | 2.9ct | Cushion | E | VS2 | Very Good
From $1,740
Compare at $3,850
Save 20.6%IGI | 2.9ct | Cushion | E | VVS2 | Very Good
From $992
Compare at $1,250
Save 40.4%IGI | 2.9ct | Cushion | D | VS2 | Very Good
From $1,363
Compare at $2,289
Save 66.1%IGI | 2.9ct | Cushion | D | VS2 | Ideal
From $1,982
Compare at $5,840
Save 73%IGI | 2.9ct | Cushion | D | VVS2 | Very Good
From $1,687
Compare at $6,240
Save 20.7%IGI | 2.9ct | Cushion | F | VVS2 | Very Good
From $972
Compare at $1,225
IGI | 2.9ct | Cushion | F | VS2 | Very Good
From $911
Compare at $997
Save 37.1%IGI | 2.9ct | Cushion | E | VVS2 | Excellent
From $992
Compare at $1,577
Save 81%IGI | 2.9ct | Cushion | G | VS1 | Ideal
From $889
Compare at $4,690
Save 41.4%IGI | 2.9ct | Cushion | E | VVS2 | Very Good
From $1,241
Compare at $2,118
Save 31.4%IGI | 2.9ct | Cushion | G | VS1 | Very Good
From $883
Compare at $1,287
Save 79.8%IGI | 2.9ct | Cushion | E | VS1 | Excellent
From $1,443
Compare at $7,150
Save 77.2%IGI | 2.9ct | Cushion | E | VS1 | Very Good
From $898
Compare at $3,930
IGI | 2.9ct | Cushion | F | VS2 | Very Good
From $911
Compare at $997
Save 20.8%IGI | 2.9ct | Cushion | E | VS2 | Very Good
From $870
Compare at $1,099
Entry pricing in this category starts around $530.
What to Know When Shopping for 2.9 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $13,946 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 $2,298 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 522 comparable stones in this segment. Prices start around $530 and go up to $14,476.
Based on the latest market data, the average asking price is about $3,129 with a median around $2,298.
The observed spread is roughly $13,946 across tracked listings, which is about 96.3% 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 $2,298, 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 10 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 $13,946 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.
2.8 Carat Cushion Lab Grown Diamond Prices
2.7 Carat Cushion Lab Grown Diamond Prices
2.6 Carat Cushion Lab Grown Diamond Prices
3 Carat Cushion Lab Grown Diamond Prices
2.5 Carat Cushion Lab Grown Diamond Prices
3.1 Carat Cushion Lab Grown Diamond Prices
2.4 Carat Cushion Lab Grown Diamond Prices
2.9 Carat Round Lab Grown Diamond Prices
2.9 Carat Oval Lab Grown Diamond Prices
2.9 Carat Radiant Lab Grown Diamond Prices
2.9 Carat Emerald Lab Grown Diamond Prices
2.9 Carat Princess Lab Grown Diamond Prices
Tracking Lab Grown inventory for 2.9 carat Cushion diamonds.