5.2 Carat Marquise Lab Grown Diamond Prices Comparison
As of May 2026, 5.2 carat marquise lab grown diamonds usually range from $870 to $37,299, with an average price of $4,271.In the last month, prices for these diamonds are down 5.9%.Compare 26 verified listings across 6 retailers tracked by CaratRadar.
5.2 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 26 verified 5.2-carat marquise lab grown diamonds listed across 6 online retailers. Prices in this segment range from $870 to $37,299, with an average asking price of $4,271 and a median of $3,058.
The price spread of $36,429 (97.7% 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.
26 diamonds tracked in this segment
Price range: $870 to $37,299
Average price: $4,271
Median price: $3,058
Available across 6 retailers
Savings potential: up to 97.7%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
26
$870
$4,271
$3,059
$37,299
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 64.1%IGI | 5.21ct | Marquise | G | VS2 | Ideal
From $874
Compare at $2,434
Save 52.5%IGI | 5.22ct | Marquise | F | VS2 | Very Good
From $1,201
Compare at $2,531
IGI | 5.28ct | Marquise | E | VS1 | Very Good
From $1,237
Compare at $2,213
IGI | 5.26ct | Marquise | G | VS1 | Ideal
From $1,361
Compare at $6,030
IGI | 5.26ct | Marquise | G | VS1 | Ideal
From $1,361
Compare at $5,670
Save 34.2%IGI | 5.25ct | Marquise | F | VVS2 | Ideal
From $1,368
Compare at $2,078
Save 47.5%IGI | 5.26ct | Marquise | F | VS1 | Ideal
From $1,414
Compare at $2,691
Save 47.5%IGI | 5.26ct | Marquise | F | VS1 | Ideal
From $1,414
Compare at $2,691
IGI | 5.23ct | Marquise | J | VVS2 | Ideal
From $1,639
Compare at $7,900
Save 43%IGI | 5.21ct | Marquise | E | VS1 | Ideal
From $1,662
Compare at $2,917
Save 65.6%IGI | 5.28ct | Marquise | D | VS1 | Excellent
From $1,850
Compare at $5,385
GCAL | 5.21ct | Marquise | H | VS1 | Excellent
From $2,006
Compare at $9,370
Save 78.4%IGI | 5.25ct | Marquise | F | VVS2 | Very Good
From $2,240
Compare at $10,370
Save 49.6%GIA | 5.25ct | Marquise | F | VVS2 | Excellent
From $2,399
Compare at $4,763
Save 70.3%IGI | 5.21ct | Marquise | FANCY | VS2 | Very Good
From $3,115
Compare at $10,490
Save 70.3%IGI | 5.29ct | Marquise | FANCY | VS2 | Very Good
From $3,163
Compare at $10,652
IGI | 5.24ct | Marquise | FANCY | VS1 | Ideal
From $3,197
Compare at $14,195
Save 47.2%IGI | 5.22ct | Marquise | F | VVS1 | Very Good
From $3,435
Compare at $6,507
Save 70.3%IGI | 5.25ct | Marquise | FANCY | VS2 | Good
From $4,393
Compare at $14,816
Save 70.4%IGI | 5.26ct | Marquise | FANCY | VVS2 | Very Good
From $4,400
Compare at $14,845
IGI | 5.23ct | Marquise | G | VS2 | Ideal
From $8,550
Compare at $33,574
Save 20.1%IGI | 5.22ct | Marquise | E | VVS2 | Ideal
From $10,200
Compare at $12,770
Save 20.1%IGI | 5.24ct | Marquise | E | VVS2 | Ideal
From $10,240
Compare at $12,820
Save 35.8%IGI | 5.25ct | Marquise | E | IF | Ideal
From $27,680
Compare at $43,135
Save 35.7%IGI | 5.29ct | Marquise | D | FL | Ideal
From $42,970
Compare at $66,825
Save 34.8%IGI | 5.28ct | Marquise | D | FL | Ideal
From $43,488
Compare at $66,699
Entry pricing in this category starts around $870.
What to Know When Shopping for 5.2 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $36,429 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 $3,058 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 26 comparable stones in this segment. Prices start around $870 and go up to $37,299.
Based on the latest market data, the average asking price is about $4,271 with a median around $3,058.
The observed spread is roughly $36,429 across tracked listings, which is about 97.7% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $4,271. The median price is $3,058, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
We currently track this stone category across 6 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 $36,429 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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