2.9 Carat Marquise Lab Grown Diamond Prices Comparison
As of February 2026, 2.9 carat marquise lab grown diamonds usually range from $621 to $6,252, with an average price of $1,064.In the last month, prices for these diamonds are down 0.8%.Compare 777 verified listings across 7 retailers tracked by CaratRadar.
2.9 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 777 verified 2.9-carat marquise lab grown diamonds listed across 7 online retailers. Prices in this segment range from $621 to $6,252, with an average asking price of $1,064 and a median of $917.
The price spread of $5,631 (90.1% 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.
777 diamonds tracked in this segment
Price range: $621 to $6,252
Average price: $1,064
Median price: $917
Available across 7 retailers
Savings potential: up to 90.1%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
777
$621
$1,064
$917
$6,252
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 80.3%2.86ct | Marquise | E | VS1 | Ideal
From $1,206
Compare at $6,110
IGISave 74.3%2.86ct | Marquise | F | VVS2 | Ideal
From $1,073
Compare at $4,180
IGISave 76.2%2.86ct | Marquise | F | VVS2 | Excellent
From $1,629
Compare at $6,830
IGISave 20.9%2.86ct | Marquise | F | VVS2 | Very Good
From $817
Compare at $1,033
IGISave 68.6%2.86ct | Marquise | F | VVS2 | Excellent
From $878
Compare at $2,800
IGISave 78.4%2.86ct | Marquise | F | VVS1 | Ideal
From $1,896
Compare at $8,780
IGISave 57.3%2.86ct | Marquise | F | VS1 | Excellent
From $926
Compare at $2,170
IGISave 57.3%2.86ct | Marquise | F | VS1 | Excellent
From $926
Compare at $2,170
IGISave 81.3%2.86ct | Marquise | F | VS2 | Excellent
From $926
Compare at $4,950
IGISave 63%2.86ct | Marquise | E | VS1 | Excellent
From $908
Compare at $2,455
2.86ct | Marquise | F | VVS2 | Excellent
From $868
Compare at $4,600
IGISave 84.1%2.86ct | Marquise | E | VVS2 | Ideal
From $1,086
Compare at $6,840
IGISave 78.4%2.86ct | Marquise | F | VVS2 | Ideal
From $812
Compare at $3,750
IGISave 85.2%2.86ct | Marquise | F | VVS2 | Excellent
From $1,084
Compare at $7,340
IGISave 78.5%2.86ct | Marquise | E | VS1 | Very Good
From $1,206
Compare at $5,620
IGISave 85%2.86ct | Marquise | D | VVS2 | Ideal
From $1,580
Compare at $10,570
IGISave 85.8%2.86ct | Marquise | G | VVS2 | Excellent
From $969
Compare at $6,800
IGISave 83.3%2.86ct | Marquise | E | VVS2 | Very Good
From $877
Compare at $5,260
IGISave 84.5%2.86ct | Marquise | F | VS1 | Excellent
From $1,045
Compare at $6,760
IGISave 83.8%2.86ct | Marquise | D | VS2 | Ideal
From $1,160
Compare at $7,170
IGISave 83.3%2.86ct | Marquise | E | VVS2 | Very Good
From $877
Compare at $5,260
IGISave 61.7%2.86ct | Marquise | E | VS1 | Excellent
From $908
Compare at $2,370
IGISave 75.5%2.86ct | Marquise | F | VVS2 | Ideal
From $714
Compare at $2,915
IGISave 63%2.86ct | Marquise | E | VS1 | Excellent
From $908
Compare at $2,455
IGISave 62.4%2.86ct | Marquise | F | VS1 | Ideal
From $848
Compare at $2,255
IGISave 85.8%2.86ct | Marquise | D | VVS2 | Ideal
From $1,451
Compare at $10,210
IGISave 70.2%2.86ct | Marquise | F | VVS2 | Excellent
From $868
Compare at $2,915
IGISave 69%2.86ct | Marquise | F | VVS2 | Excellent
From $868
Compare at $2,800
IGISave 63%2.86ct | Marquise | E | VS1 | Ideal
From $908
Compare at $2,455
IGISave 75.4%2.86ct | Marquise | E | VS2 | Excellent
From $888
Compare at $3,610
IGISave 57.3%2.86ct | Marquise | F | VS1 | Excellent
From $926
Compare at $2,170
IGISave 62%2.86ct | Marquise | F | VS1 | Excellent
From $848
Compare at $2,230
IGISave 83.6%2.86ct | Marquise | G | VS1 | Excellent
From $760
Compare at $4,630
IGISave 84.1%2.86ct | Marquise | E | VVS2 | Ideal
From $1,086
Compare at $6,840
IGISave 81.4%2.86ct | Marquise | F | VS2 | Excellent
From $915
Compare at $4,920
IGISave 14.8%2.86ct | Marquise | G | VVS2 | Very Good
From $838
Compare at $983
2.86ct | Marquise | E | VVS2 | Very Good
From $1,093
Compare at $6,840
IGISave 55.5%2.86ct | Marquise | F | VS1 | Very Good
From $836
Compare at $1,880
IGISave 61.5%2.86ct | Marquise | F | VS1 | Excellent
From $868
Compare at $2,255
IGISave 83.2%2.86ct | Marquise | F | VS1 | Excellent
From $904
Compare at $5,370
IGISave 14.8%2.86ct | Marquise | G | VS1 | Excellent
From $816
Compare at $957
IGISave 84.5%2.86ct | Marquise | G | VVS2 | Excellent
From $804
Compare at $5,190
IGISave 61.5%2.86ct | Marquise | F | VS1 | Excellent
From $868
Compare at $2,255
IGISave 79.9%2.86ct | Marquise | D | VS1 | Very Good
From $1,332
Compare at $6,620
IGISave 55.5%2.86ct | Marquise | F | VS1 | Very Good
From $836
Compare at $1,880
IGISave 62%2.86ct | Marquise | E | VS2 | Ideal
From $880
Compare at $2,315
IGISave 75.8%2.86ct | Marquise | E | VVS2 | Good
From $1,043
Compare at $4,310
IGISave 62.5%2.86ct | Marquise | D | IF | Ideal
From $4,198
Compare at $11,180
IGISave 82.2%2.86ct | Marquise | E | VVS2 | Very Good
From $1,046
Compare at $5,860
IGISave 76.3%2.86ct | Marquise | D | VVS1 | Ideal
From $2,195
Compare at $9,260
Entry pricing in this category starts around $621.
What to Know When Shopping for 2.9 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $5,631 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 $917 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.
- Marquise diamonds maximize carat weight face-up and appear larger than their actual weight. Check symmetry carefully.
Frequently Asked Questions
We currently track 777 comparable stones in this segment. Prices start around $621 and go up to $6,252.
Based on the latest market data, the average asking price is about $1,064 with a median around $917.
The observed spread is roughly $5,631 across tracked listings, which is about 90.1% 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 $917, 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 7 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 $5,631 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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