0.9 Carat Marquise Natural Diamond Prices Comparison
As of June 2026, 0.9 carat marquise natural diamonds usually range from $523 to $8,027, with an average price of $3,173.In the last month, prices for these diamonds are down 1.4%.Compare 193 verified listings across 7 retailers tracked by CaratRadar.
0.9 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 193 verified 0.9-carat marquise natural diamonds listed across 7 online retailers. Prices in this segment range from $523 to $8,027, with an average asking price of $3,173 and a median of $3,039.
The price spread of $7,504 (93.5% 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.
193 diamonds tracked in this segment
Price range: $523 to $8,027
Average price: $3,173
Median price: $3,039
Available across 7 retailers
Savings potential: up to 93.5%
Price Range Overview
As of Jun 1, 2026Real market range for this carat, shape, and diamond type.
193
$523
$3,173
$3,039
$8,027
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 34.4%GIA | 0.91ct | Marquise | K | SI2 | Ideal
From $706
Compare at $1,077
Save 13.9%GIA | 0.91ct | Marquise | L | SI1 | Very Good
From $769
Compare at $893
Save 35.2%GIA | 0.96ct | Marquise | K | SI2 | Excellent
From $886
Compare at $1,367
Save 33.9%GIA | 0.97ct | Marquise | L | SI2 | Very Good
From $1,081
Compare at $1,635
Save 35.1%GIA | 0.96ct | Marquise | L | VS2 | Ideal
From $1,085
Compare at $1,672
Save 34.5%GIA | 0.91ct | Marquise | K | SI2 | Excellent
From $1,094
Compare at $1,670
Save 35.2%GIA | 0.96ct | Marquise | J | SI2 | Ideal
From $1,172
Compare at $1,808
Save 35.2%GIA | 0.97ct | Marquise | K | SI1 | Very Good
From $1,180
Compare at $1,820
Save 35.2%GIA | 0.96ct | Marquise | K | VS1 | Excellent
From $1,204
Compare at $1,857
Save 35.1%GIA | 0.96ct | Marquise | K | VS1 | Ideal
From $1,222
Compare at $1,884
Save 36.9%GIA | 0.94ct | Marquise | L | VVS2 | Good
From $1,227
Compare at $1,944
Save 13.7%GIA | 0.96ct | Marquise | J | SI2 | Very Good
From $1,229
Compare at $1,424
Save 36.9%GIA | 0.99ct | Marquise | L | SI2 | Very Good
From $1,260
Compare at $1,996
IGI | 0.96ct | Marquise | I | SI2 | Ideal
From $1,282
Compare at $1,420
Save 22.1%GIA | 0.91ct | Marquise | L | VS2 | Excellent
From $1,289
Compare at $1,654
IGI | 0.91ct | Marquise | J | VS1 | Very Good
From $1,314
Compare at $1,315
Save 14.1%GIA | 0.91ct | Marquise | K | SI2 | Excellent
From $1,321
Compare at $1,538
IGI | 0.91ct | Marquise | J | SI1 | Very Good
From $1,364
Compare at $1,365
Save 10.1%IGI | 0.96ct | Marquise | G | SI2 | Ideal
From $1,366
Compare at $1,520
Save 26.4%GIA | 0.95ct | Marquise | L | SI2 | Good
From $1,395
Compare at $1,896
Save 38.6%GIA | 0.96ct | Marquise | I | SI2 | Excellent
From $1,405
Compare at $2,287
Save 13.1%GIA | 0.96ct | Marquise | J | SI1 | Very Good
From $1,423
Compare at $1,637
Save 35.2%GIA | 0.96ct | Marquise | J | SI2 | Excellent
From $1,437
Compare at $2,217
Save 38.6%GIA | 0.98ct | Marquise | I | SI2 | Good
From $1,440
Compare at $2,344
Save 37%GIA | 0.99ct | Marquise | J | SI2 | Excellent
From $1,473
Compare at $2,337
Save 28.3%GIA | 0.96ct | Marquise | K | SI2 | Ideal
From $1,473
Compare at $2,053
Save 35.2%GIA | 0.97ct | Marquise | I | SI2 | Very Good
From $1,474
Compare at $2,273
IGI | 0.91ct | Marquise | J | SI1 | Very Good
From $1,487
Compare at $1,520
Save 26.4%GIA | 0.93ct | Marquise | L | SI1 | Excellent
From $1,495
Compare at $2,030
GIA | 0.94ct | Marquise | K | SI2 | Excellent
From $1,519
Compare at $1,575
GIA | 0.91ct | Marquise | K | SI2 | Excellent
From $1,536
Compare at $1,586
Save 35.2%GIA | 0.96ct | Marquise | K | VVS2 | Very Good
From $1,538
Compare at $2,373
Save 21.8%GIA | 0.96ct | Marquise | L | SI1 | Excellent
From $1,569
Compare at $2,007
Save 26.1%GIA | 0.96ct | Marquise | L | SI2 | Excellent
From $1,597
Compare at $2,160
GIA | 0.92ct | Marquise | K | IF | Excellent
From $1,620
Compare at $1,686
IGI | 0.96ct | Marquise | F | SI2 | Ideal
From $1,620
Compare at $1,790
HRD | 0.96ct | Marquise | E | SI2 | Ideal
From $1,632
Compare at $1,800
Save 33.8%GIA | 0.96ct | Marquise | I | SI2 | Ideal
From $1,649
Compare at $2,492
Save 10.1%GIA | 0.91ct | Marquise | J | SI2 | Good
From $1,682
Compare at $1,872
IGI | 0.96ct | Marquise | F | SI2 | Ideal
From $1,715
Compare at $1,890
Save 12.3%GIA | 0.96ct | Marquise | K | SI1 | Excellent
From $1,716
Compare at $1,956
GIA | 0.93ct | Marquise | I | SI2 | Excellent
From $1,735
Compare at $1,908
Save 12.3%GIA | 0.91ct | Marquise | J | SI1 | Ideal
From $1,743
Compare at $1,987
Save 35.2%GIA | 0.97ct | Marquise | I | SI1 | Excellent
From $1,761
Compare at $2,716
GIA | 0.91ct | Marquise | I | SI2 | Excellent
From $1,772
Compare at $1,812
Save 10.1%GIA | 0.96ct | Marquise | J | SI2 | Excellent
From $1,774
Compare at $1,973
Save 34.5%GIA | 0.91ct | Marquise | K | VVS2 | Excellent
From $1,797
Compare at $2,743
Save 23.9%GIA | 0.91ct | Marquise | I | SI1 | Very Good
From $1,797
Compare at $2,363
Save 23.1%GIA | 0.91ct | Marquise | K | VS1 | Excellent
From $1,798
Compare at $2,337
Save 33.9%GIA | 0.98ct | Marquise | F | SI2 | Ideal
From $1,816
Compare at $2,746
Entry pricing in this category starts around $523.
What to Know When Shopping for 0.9 Carat Marquise Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $7,504 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 $3,039 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 193 comparable stones in this segment. Prices start around $523 and go up to $8,027.
Based on the latest market data, the average asking price is about $3,173 with a median around $3,039.
The observed spread is roughly $7,504 across tracked listings, which is about 93.5% 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 $3,173. The median price is $3,039, 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 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 $7,504 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 0.9 carat Marquise diamonds.