0.8 Carat Marquise Natural Diamond Prices Comparison
As of May 2026, 0.8 carat marquise natural diamonds usually range from $625 to $5,955, with an average price of $2,454.In the last month, prices for these diamonds are down 2.2%.Compare 430 verified listings across 9 retailers tracked by CaratRadar.
0.8 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 430 verified 0.8-carat marquise natural diamonds listed across 9 online retailers. Prices in this segment range from $625 to $5,955, with an average asking price of $2,454 and a median of $2,360.
The price spread of $5,330 (89.5% 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.
430 diamonds tracked in this segment
Price range: $625 to $5,955
Average price: $2,454
Median price: $2,360
Available across 9 retailers
Savings potential: up to 89.5%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
430
$625
$2,454
$2,360
$5,955
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 20.7%IGI | 0.9ct | Marquise | K | SI1 | Very Good
From $715
Compare at $901
Save 40.4%GIA | 0.9ct | Marquise | L | SI2 | Excellent
From $752
Compare at $1,262
Save 34.5%GIA | 0.9ct | Marquise | K | SI2 | Ideal
From $801
Compare at $1,223
Save 34.5%GIA | 0.81ct | Marquise | K | VVS1 | Excellent
From $855
Compare at $1,306
Save 17.2%IGI | 0.86ct | Marquise | J | VS2 | Very Good
From $880
Compare at $1,063
IGI | 0.81ct | Marquise | K | VS1 | Very Good
From $895
Compare at $895
Save 28.2%GIA | 0.83ct | Marquise | J | SI1 | Excellent
From $898
Compare at $1,250
Save 16.5%IGI | 0.9ct | Marquise | J | SI1 | Very Good
From $920
Compare at $1,102
Save 34.5%GIA | 0.82ct | Marquise | K | VS2 | Excellent
From $944
Compare at $1,441
Save 11.3%GIA | 0.9ct | Marquise | L | SI2 | Very Good
From $1,025
Compare at $1,155
Save 34.5%GIA | 0.81ct | Marquise | I | SI2 | Very Good
From $1,035
Compare at $1,581
Save 34.5%GIA | 0.9ct | Marquise | K | SI2 | Ideal
From $1,042
Compare at $1,591
Save 29.3%GIA | 0.9ct | Marquise | K | SI2 | Excellent
From $1,050
Compare at $1,486
Save 11.3%GIA | 0.82ct | Marquise | L | VVS2 | Very Good
From $1,061
Compare at $1,196
Save 33.8%GIA | 0.81ct | Marquise | H | SI2 | Ideal
From $1,064
Compare at $1,608
Save 33.2%GIA | 0.82ct | Marquise | K | VS2 | Ideal
From $1,076
Compare at $1,610
Save 34.5%GIA | 0.82ct | Marquise | J | SI1 | Excellent
From $1,077
Compare at $1,645
Save 38.5%GIA | 0.81ct | Marquise | G | SI2 | Good
From $1,142
Compare at $1,855
Save 34.5%GIA | 0.9ct | Marquise | K | VS2 | Very Good
From $1,151
Compare at $1,758
Save 20.5%GIA | 0.81ct | Marquise | L | VVS1 | Ideal
From $1,166
Compare at $1,466
Save 33.2%GIA | 0.9ct | Marquise | L | VS1 | Ideal
From $1,178
Compare at $1,764
Save 33.2%GIA | 0.81ct | Marquise | I | VS2 | Very Good
From $1,180
Compare at $1,766
Save 10.7%IGI | 0.82ct | Marquise | J | VVS1 | Ideal
From $1,237
Compare at $1,385
Save 33.1%GIA | 0.9ct | Marquise | G | SI2 | Ideal
From $1,239
Compare at $1,853
IGI | 0.85ct | Marquise | I | VS2 | Very Good
From $1,244
Compare at $1,346
GIA | 0.9ct | Marquise | L | IF | Very Good
From $1,274
Compare at $1,397
GIA | 0.9ct | Marquise | K | VS1 | Very Good
From $1,302
Compare at $1,327
GIA | 0.9ct | Marquise | K | VS1 | Very Good
From $1,302
Compare at $1,397
Save 34.5%GIA | 0.81ct | Marquise | G | SI2 | Very Good
From $1,305
Compare at $1,993
Save 26.2%GIA | 0.81ct | Marquise | I | VS2 | Excellent
From $1,350
Compare at $1,830
Save 34.5%GIA | 0.9ct | Marquise | J | SI2 | Very Good
From $1,351
Compare at $2,063
GIA | 0.81ct | Marquise | H | SI2 | Excellent
From $1,369
Compare at $1,500
Save 34.5%GIA | 0.85ct | Marquise | K | VS1 | Excellent
From $1,389
Compare at $2,122
Save 31.3%GIA | 0.9ct | Marquise | K | SI1 | Ideal
From $1,393
Compare at $2,027
GIA | 0.9ct | Marquise | K | VS2 | Very Good
From $1,402
Compare at $1,431
IGI | 0.9ct | Marquise | K | VS1 | Very Good
From $1,408
Compare at $1,410
Save 33.2%GIA | 0.82ct | Marquise | H | VS2 | Ideal
From $1,413
Compare at $2,115
IGI | 0.84ct | Marquise | I | VS1 | Very Good
From $1,414
Compare at $1,530
Save 29.4%GIA | 0.82ct | Marquise | H | SI2 | Excellent
From $1,424
Compare at $2,017
IGI | 0.9ct | Marquise | J | VS2 | Very Good
From $1,430
Compare at $1,572
IGI | 0.9ct | Marquise | J | SI1 | Very Good
From $1,431
Compare at $1,435
Save 26.4%GIA | 0.9ct | Marquise | K | VS1 | Excellent
From $1,439
Compare at $1,955
IGI | 0.86ct | Marquise | I | VS1 | Very Good
From $1,448
Compare at $1,564
Save 33.1%GIA | 0.81ct | Marquise | L | IF | Excellent
From $1,450
Compare at $2,169
Save 33.2%GIA | 0.83ct | Marquise | J | VS2 | Ideal
From $1,451
Compare at $2,172
Save 34.5%GIA | 0.81ct | Marquise | H | SI1 | Excellent
From $1,451
Compare at $2,215
Save 38.6%GIA | 0.83ct | Marquise | J | SI1 | Good
From $1,457
Compare at $2,372
GIA | 0.9ct | Marquise | K | SI2 | Ideal
From $1,459
Compare at $1,580
GIA | 0.9ct | Marquise | J | SI1 | Excellent
From $1,462
Compare at $1,560
Save 28.6%GIA | 0.9ct | Marquise | I | SI2 | Good
From $1,466
Compare at $2,054
Entry pricing in this category starts around $625.
What to Know When Shopping for 0.8 Carat Marquise Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $5,330 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 $2,360 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.
- Compare natural vs. lab-grown options for the same carat and shape. Lab-grown diamonds are chemically identical but often 30-50% less expensive.
- 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 430 comparable stones in this segment. Prices start around $625 and go up to $5,955.
Based on the latest market data, the average asking price is about $2,454 with a median around $2,360.
The observed spread is roughly $5,330 across tracked listings, which is about 89.5% 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 $2,454. The median price is $2,360, 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 9 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 $5,330 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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Tracking Natural inventory for 0.8 carat Marquise diamonds.