0.8 Carat Marquise Natural Diamond Prices Comparison
As of October 2026, 0.8 carat marquise natural diamonds in the 0.80–0.89 carat benchmark range usually range from $523 to $7,238, with an average price of $2,916.In the last month, prices for these diamonds are down 1.1%.Compare 480 verified listings across 10 retailers tracked by CaratRadar.
0.8 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 480 verified 0.8-carat marquise natural diamonds in the 0.80–0.89 carat benchmark range, listed across 10 online retailers. Prices in this segment range from $523 to $7,238, with an average asking price of $2,916 and a median of $2,777.
The price spread of $6,715 (92.8% 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 use the same benchmark range throughout the page and 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.
480 diamonds tracked in the 0.80–0.89 carat benchmark
Price range: $523 to $7,238
Average price: $2,916
Median price: $2,777
Available across 10 retailers
Savings potential: up to 92.8%
Price Range Overview
As of Oct 14, 2026Real market range for this carat, shape, and diamond type.
480
$523
$2,916
$2,777
$7,238
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 20.1%IGI | 0.81ct | Marquise | J | I1 | Ideal
From $633
Compare at $792
Save 23.1%GIA | 0.81ct | Marquise | L | SI2 | Ideal
From $640
Compare at $832
Save 20.6%IGI | 0.83ct | Marquise | J | SI1 | Very Good
From $684
Compare at $862
Save 20.8%IGI | 0.9ct | Marquise | J | I1 | Ideal
From $697
Compare at $880
Save 18.7%IGI | 0.82ct | Marquise | J | SI1 | Very Good
From $735
Compare at $904
Save 20.1%IGI | 0.83ct | Marquise | K | VVS1 | Very Good
From $744
Compare at $931
IGI | 0.84ct | Marquise | J | SI1 | Very Good
From $779
Compare at $780
Save 19.1%IGI | 0.82ct | Marquise | K | IF | Very Good
From $809
Compare at $1,000
Save 34.4%GIA | 0.81ct | Marquise | G | SI2 | Ideal
From $812
Compare at $1,238
Save 34.3%GIA | 0.85ct | Marquise | J | SI1 | Ideal
From $841
Compare at $1,281
Save 34.4%GIA | 0.9ct | Marquise | K | SI1 | Excellent
From $873
Compare at $1,331
Save 17.3%IGI | 0.9ct | Marquise | J | SI1 | Very Good
From $908
Compare at $1,098
Save 34.4%GIA | 0.83ct | Marquise | K | VS2 | Very Good
From $921
Compare at $1,403
Save 17.6%IGI | 0.9ct | Marquise | K | SI1 | Very Good
From $943
Compare at $1,144
Save 17.7%GIA | 0.9ct | Marquise | L | SI2 | Excellent
From $944
Compare at $1,147
Save 17.7%IGI | 0.9ct | Marquise | J | SI1 | Very Good
From $966
Compare at $1,173
Save 34.4%GIA | 0.9ct | Marquise | J | SI2 | Excellent
From $970
Compare at $1,478
GIA | 0.9ct | Marquise | K | SI2 | Excellent
From $986
Compare at $1,071
Save 34.4%GIA | 0.85ct | Marquise | H | SI1 | Ideal
From $997
Compare at $1,520
Save 10.4%GIA | 0.81ct | Marquise | I | SI2 | Excellent
From $1,004
Compare at $1,121
Save 18.7%GIA | 0.9ct | Marquise | L | SI1 | Excellent
From $1,007
Compare at $1,238
Save 22.5%IGI | 0.85ct | Marquise | I | VS2 | Very Good
From $1,012
Compare at $1,306
Save 22.5%IGI | 0.85ct | Marquise | J | VVS1 | Very Good
From $1,018
Compare at $1,314
Save 29.8%GIA | 0.82ct | Marquise | K | VVS2 | Excellent
From $1,025
Compare at $1,461
IGI | 0.9ct | Marquise | J | SI2 | Ideal
From $1,047
Compare at $1,133
Save 19.2%IGI | 0.82ct | Marquise | I | VS2 | Very Good
From $1,049
Compare at $1,299
IGI | 0.9ct | Marquise | J | SI2 | Ideal
From $1,055
Compare at $1,143
GIA | 0.9ct | Marquise | J | SI2 | Very Good
From $1,066
Compare at $1,156
Save 34.4%GIA | 0.81ct | Marquise | I | VS2 | Excellent
From $1,069
Compare at $1,629
Save 38.5%GIA | 0.81ct | Marquise | G | SI2 | Good
From $1,078
Compare at $1,753
GIA | 0.9ct | Marquise | L | VS2 | Excellent
From $1,084
Compare at $1,182
IGI | 0.9ct | Marquise | J | SI1 | Very Good
From $1,090
Compare at $1,179
Save 35%GIA | 0.81ct | Marquise | K | VVS2 | Excellent
From $1,096
Compare at $1,685
Save 27.8%GIA | 0.81ct | Marquise | I | SI1 | Excellent
From $1,104
Compare at $1,528
Save 13.8%IGI | 0.9ct | Marquise | G | SI2 | Very Good
From $1,109
Compare at $1,286
Save 18%GIA | 0.9ct | Marquise | L | VS2 | Excellent
From $1,113
Compare at $1,357
IGI | 0.84ct | Marquise | I | VS2 | Very Good
From $1,136
Compare at $1,140
GIA | 0.9ct | Marquise | K | SI2 | Excellent
From $1,140
Compare at $1,237
Save 19.4%IGI | 0.9ct | Marquise | K | SI1 | Very Good
From $1,167
Compare at $1,447
Save 17.7%GIA | 0.9ct | Marquise | K | SI1 | Excellent
From $1,171
Compare at $1,423
Save 34.4%GIA | 0.81ct | Marquise | L | IF | Excellent
From $1,173
Compare at $1,788
Save 18%GIA | 0.9ct | Marquise | K | SI2 | Good
From $1,180
Compare at $1,439
Save 19.4%IGI | 0.83ct | Marquise | I | VS1 | Very Good
From $1,188
Compare at $1,475
Save 11.1%GIA | 0.9ct | Marquise | J | SI2 | Ideal
From $1,190
Compare at $1,339
Save 22.1%IGI | 0.9ct | Marquise | K | VS1 | Very Good
From $1,191
Compare at $1,529
GIA | 0.89ct | Marquise | K | SI2 | Very Good
From $1,195
Compare at $1,227
Save 19.7%GIA | 0.81ct | Marquise | M | SI1 | Very Good
From $1,196
Compare at $1,489
GIA | 0.83ct | Marquise | I | SI2 | Excellent
From $1,199
Compare at $1,306
Save 19.5%IGI | 0.9ct | Marquise | J | VS2 | Very Good
From $1,200
Compare at $1,490
Save 34.4%GIA | 0.81ct | Marquise | G | SI2 | Very Good
From $1,201
Compare at $1,831
Entry pricing in this benchmark range starts around $523.
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 $6,715 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 $2,777 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 480 comparable stones in the 0.80–0.89 carat benchmark range. Prices start around $523 and go up to $7,238.
Based on the latest market data, the average asking price is about $2,916 with a median around $2,777.
The observed spread is roughly $6,715 across tracked listings, which is about 92.8% from highest to lowest offer in the 0.80–0.89 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $2,916. The median price is $2,777, 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 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 $6,715 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 the 0.80–0.89 carat Marquise diamond benchmark.