0.9 Carat Radiant Natural Diamond Prices Comparison
As of October 2026, 0.9 carat radiant natural diamonds in the 0.90–0.99 carat benchmark range usually range from $603 to $5,736, with an average price of $1,957.Compare 326 verified listings across 11 retailers tracked by CaratRadar.
0.9 Carat Radiant Natural Diamond Market Overview
CaratRadar currently tracks 326 verified 0.9-carat radiant natural diamonds in the 0.90–0.99 carat benchmark range, listed across 11 online retailers. Prices in this segment range from $603 to $5,736, with an average asking price of $1,957 and a median of $1,827.
The price spread of $5,133 (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 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.
326 diamonds tracked in the 0.90–0.99 carat benchmark
Price range: $603 to $5,736
Average price: $1,957
Median price: $1,827
Available across 11 retailers
Savings potential: up to 89.5%
Price Range Overview
As of Oct 15, 2026Real market range for this carat, shape, and diamond type.
326
$603
$1,957
$1,827
$5,736
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 23%GIA | 0.91ct | Radiant | L | SI2 | Ideal
From $603
Compare at $783
Save 21.2%GIA | 0.92ct | Radiant | K | SI2 | Excellent
From $755
Compare at $959
Save 26.9%GIA | 0.91ct | Radiant | J | SI1 | Ideal
From $783
Compare at $1,071
Save 22.1%GIA | 0.91ct | Radiant | J | SI2 | Excellent
From $812
Compare at $1,042
Save 40.6%GIA | 0.93ct | Radiant | K | VVS2 | Ideal
From $874
Compare at $1,472
Save 17.4%IGI | 0.96ct | Radiant | K | VS1 | Very Good
From $901
Compare at $1,091
Save 16.6%GIA | 0.91ct | Radiant | J | SI2 | Excellent
From $958
Compare at $1,149
Save 19.5%GIA | 0.92ct | Radiant | F | SI2 | Very Good
From $967
Compare at $1,201
Save 16.1%GIA | 0.94ct | Radiant | K | VS2 | Excellent
From $986
Compare at $1,175
Save 22.8%GIA | 0.91ct | Radiant | J | SI2 | Excellent
From $998
Compare at $1,292
Save 20.4%IGI | 0.91ct | Radiant | I | SI1 | Very Good
From $1,003
Compare at $1,261
Save 20.3%GIA | 0.92ct | Radiant | K | VS2 | Excellent
From $1,004
Compare at $1,260
Save 17%IGI | 0.91ct | Radiant | F | SI2 | Ideal
From $1,021
Compare at $1,230
Save 34.4%GIA | 0.97ct | Radiant | D | SI2 | Excellent
From $1,022
Compare at $1,558
Save 20%GIA | 0.91ct | Radiant | E | SI2 | Good
From $1,028
Compare at $1,285
Save 17.4%GIA | 0.91ct | Radiant | J | SI1 | Excellent
From $1,049
Compare at $1,269
GIA | 0.92ct | Radiant | I | SI1 | Good
From $1,051
Compare at $1,139
Save 17.6%GIA | 0.91ct | Radiant | K | VVS1 | Ideal
From $1,059
Compare at $1,285
Save 19.3%IGI | 0.91ct | Radiant | J | VS1 | Very Good
From $1,060
Compare at $1,314
Save 25.8%GIA | 0.91ct | Radiant | J | SI1 | Excellent
From $1,075
Compare at $1,448
Save 17.6%GIA | 0.92ct | Radiant | J | SI1 | Very Good
From $1,077
Compare at $1,308
GIA | 0.92ct | Radiant | H | SI2 | Good
From $1,080
Compare at $1,170
Save 17.6%GIA | 0.99ct | Radiant | H | SI2 | Ideal
From $1,087
Compare at $1,319
Save 16.9%EGL | 0.91ct | Radiant | G | SI2 | Ideal
From $1,089
Compare at $1,311
Save 30.6%GIA | 0.91ct | Radiant | G | SI1 | Ideal
From $1,094
Compare at $1,577
Save 17%GIA | 0.93ct | Radiant | L | SI1 | Ideal
From $1,102
Compare at $1,328
Save 25.7%GIA | 0.91ct | Radiant | J | SI1 | Very Good
From $1,102
Compare at $1,484
Save 17.6%GIA | 0.96ct | Radiant | I | VVS2 | Very Good
From $1,109
Compare at $1,347
GIA | 0.91ct | Radiant | L | VS2 | Excellent
From $1,110
Compare at $1,198
Save 17.6%GIA | 0.92ct | Radiant | D | SI2 | Very Good
From $1,111
Compare at $1,349
Save 32.7%GIA | 0.91ct | Radiant | K | VVS2 | Excellent
From $1,117
Compare at $1,660
GIA | 0.91ct | Radiant | K | VS1 | Excellent
From $1,120
Compare at $1,215
Save 34.8%GIA | 0.91ct | Radiant | J | SI2 | Excellent
From $1,128
Compare at $1,729
Save 16.9%GIA | 0.91ct | Radiant | H | VS2 | Ideal
From $1,130
Compare at $1,360
Save 34.4%GIA | 0.96ct | Radiant | H | SI1 | Excellent
From $1,133
Compare at $1,727
Save 37.7%GIA | 0.92ct | Radiant | I | VS2 | Excellent
From $1,133
Compare at $1,820
Save 14.9%GIA | 0.92ct | Radiant | F | SI1 | Excellent
From $1,135
Compare at $1,334
Save 25.5%GIA | 0.96ct | Radiant | J | SI1 | Very Good
From $1,138
Compare at $1,527
Save 26.3%GIA | 0.92ct | Radiant | L | SI1 | Excellent
From $1,153
Compare at $1,564
Save 19.4%IGI | 0.91ct | Radiant | I | VS2 | Very Good
From $1,155
Compare at $1,432
Save 18.4%GIA | 0.93ct | Radiant | J | SI1 | Excellent
From $1,164
Compare at $1,427
GIA | 0.91ct | Radiant | I | SI2 | Excellent
From $1,168
Compare at $1,220
Save 19.3%IGI | 0.91ct | Radiant | F | SI1 | Very Good
From $1,175
Compare at $1,456
Save 18.7%GIA | 0.91ct | Radiant | E | SI2 | Excellent
From $1,191
Compare at $1,465
IGI | 0.98ct | Radiant | F | SI2 | Ideal
From $1,197
Compare at $1,217
Save 34.4%GIA | 0.96ct | Radiant | G | SI1 | Excellent
From $1,202
Compare at $1,831
Save 20.8%GIA | 0.91ct | Radiant | I | SI2 | Very Good
From $1,204
Compare at $1,520
Save 20.8%GIA | 0.91ct | Radiant | I | SI1 | Good
From $1,205
Compare at $1,521
Save 18.5%GIA | 0.91ct | Radiant | J | VVS2 | Very Good
From $1,207
Compare at $1,481
Save 17%EGL | 0.96ct | Radiant | F | SI1 | Ideal
From $1,209
Compare at $1,457
Entry pricing in this benchmark range starts around $603.
What to Know When Shopping for 0.9 Carat Radiant Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $5,133 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 $1,827 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.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 326 comparable stones in the 0.90–0.99 carat benchmark range. Prices start around $603 and go up to $5,736.
Based on the latest market data, the average asking price is about $1,957 with a median around $1,827.
The observed spread is roughly $5,133 across tracked listings, which is about 89.5% from highest to lowest offer in the 0.90–0.99 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 $1,957. The median price is $1,827, 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 11 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 $5,133 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 0.90–0.99 carat Radiant diamond benchmark.