0.9 Carat Heart Lab Grown Diamond Prices Comparison
As of October 2026, 0.9 carat heart lab grown diamonds in the 0.90–0.99 carat benchmark range usually range from $169 to $1,897, with an average price of $311.Compare 1,206 verified listings across 8 retailers tracked by CaratRadar.
0.9 Carat Heart Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,206 verified 0.9-carat heart lab grown diamonds in the 0.90–0.99 carat benchmark range, listed across 8 online retailers. Prices in this segment range from $169 to $1,897, with an average asking price of $311 and a median of $316.
The price spread of $1,728 (91.1% 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.
1,206 diamonds tracked in the 0.90–0.99 carat benchmark
Price range: $169 to $1,897
Average price: $311
Median price: $316
Available across 8 retailers
Savings potential: up to 91.1%
Price Range Overview
As of Oct 13, 2026Real market range for this carat, shape, and diamond type.
1,206
$169
$311
$316
$1,897
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 79.1%IGI | 0.91ct | Heart | E | VS2 | Very Good
From $169
Compare at $810
Save 79.4%IGI | 0.93ct | Heart | E | VS2 | Very Good
From $171
Compare at $830
Save 79.5%IGI | 0.94ct | Heart | F | VS1 | Excellent
From $172
Compare at $840
Save 78.6%IGI | 0.91ct | Heart | E | VS2 | Excellent
From $173
Compare at $810
Save 79.3%IGI | 0.94ct | Heart | F | VS1 | Very Good
From $174
Compare at $840
Save 77%IGI | 0.97ct | Heart | F | VS1 | Very Good
From $176
Compare at $764
Save 76.9%IGI | 0.96ct | Heart | D | VS2 | Very Good
From $177
Compare at $765
Save 76.9%IGI | 0.95ct | Heart | F | VS1 | Very Good
From $177
Compare at $767
Save 79.3%IGI | 0.97ct | Heart | E | VS2 | Very Good
From $178
Compare at $860
Save 79.5%IGI | 0.98ct | Heart | F | VS1 | Very Good
From $180
Compare at $880
Save 79.1%IGI | 0.97ct | Heart | E | VS2 | Very Good
From $180
Compare at $860
Save 79.4%IGI | 0.99ct | Heart | E | VS2 | Very Good
From $181
Compare at $880
Save 79.1%IGI | 0.97ct | Heart | F | VS1 | Very Good
From $182
Compare at $870
Save 78.5%IGI | 0.99ct | Heart | E | SI1 | Very Good
From $183
Compare at $850
Save 76.9%IGI | 0.91ct | Heart | F | VVS2 | Excellent
From $186
Compare at $806
Save 78.9%IGI | 0.91ct | Heart | F | VVS2 | Very Good
From $186
Compare at $880
Save 76.9%IGI | 0.98ct | Heart | E | VS1 | Very Good
From $187
Compare at $809
Save 76.9%IGI | 0.95ct | Heart | E | VS1 | Very Good
From $188
Compare at $814
Save 76.8%IGI | 0.92ct | Heart | D | VS1 | Ideal
From $190
Compare at $820
Save 76.8%IGI | 0.96ct | Heart | E | VS2 | Very Good
From $191
Compare at $825
Save 76.8%IGI | 0.97ct | Heart | E | VS1 | Excellent
From $192
Compare at $826
Save 76.9%IGI | 0.94ct | Heart | D | VS1 | Ideal
From $193
Compare at $834
Save 76.9%IGI | 0.94ct | Heart | D | VS1 | Ideal
From $193
Compare at $834
Save 76.3%IGI | 0.92ct | Heart | E | VVS2 | Ideal
From $193
Compare at $814
Save 76.9%IGI | 0.91ct | Heart | E | VS1 | Very Good
From $196
Compare at $847
Save 76.8%IGI | 0.91ct | Heart | G | VS1 | Very Good
From $197
Compare at $848
Save 76.9%IGI | 0.96ct | Heart | E | VVS2 | Very Good
From $198
Compare at $856
Save 76.9%IGI | 0.92ct | Heart | D | VVS2 | Ideal
From $199
Compare at $860
Save 76.2%IGI | 0.96ct | Heart | E | VVS2 | Ideal
From $200
Compare at $842
Save 76.5%IGI | 0.95ct | Heart | D | SI1 | Excellent
From $200
Compare at $850
Save 76.8%IGI | 0.94ct | Heart | D | VS1 | Very Good
From $202
Compare at $871
Save 77.1%IGI | 0.93ct | Heart | G | VVS2 | Very Good
From $204
Compare at $890
Save 76.8%IGI | 0.97ct | Heart | E | VVS2 | Ideal
From $207
Compare at $892
Save 77.3%IGI | 0.95ct | Heart | G | VVS2 | Very Good
From $207
Compare at $910
Save 64.4%IGI | 0.92ct | Heart | D | VS1 | Excellent
From $208
Compare at $584
Save 76.8%IGI | 0.96ct | Heart | E | VVS2 | Excellent
From $209
Compare at $901
Save 77%IGI | 0.98ct | Heart | D | VVS2 | Very Good
From $209
Compare at $910
Save 76.8%IGI | 0.99ct | Heart | E | VS1 | Very Good
From $210
Compare at $905
Save 73.8%IGI | 0.91ct | Heart | D | SI1 | Ideal
From $212
Compare at $810
Save 50.6%IGI | 0.94ct | Heart | FANCY | VS1 | Very Good
From $216
Compare at $437
Save 76.7%IGI | 0.97ct | Heart | E | VVS2 | Very Good
From $216
Compare at $929
Save 75.9%IGI | 0.95ct | Heart | D | VS2 | Ideal
From $217
Compare at $899
Save 45.2%IGI | 0.98ct | Heart | FANCY | VS1 | Good
From $218
Compare at $398
Save 76.7%IGI | 0.96ct | Heart | E | VS1 | Very Good
From $219
Compare at $941
Save 66.7%IGI | 0.95ct | Heart | F | VVS2 | Ideal
From $223
Compare at $670
Save 72.7%IGI | 0.91ct | Heart | D | VVS1 | Excellent
From $224
Compare at $820
Save 76%IGI | 0.99ct | Heart | D | VVS1 | Excellent
From $227
Compare at $947
Save 76.4%IGI | 0.94ct | Heart | D | VS1 | Very Good
From $227
Compare at $960
Save 41%IGI | 0.94ct | Heart | E | VS1 | Ideal
From $227
Compare at $385
Save 72.8%IGI | 0.98ct | Heart | D | VS1 | Ideal
From $229
Compare at $843
Entry pricing in this benchmark range starts around $169.
What to Know When Shopping for 0.9 Carat Heart Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $1,728 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 $316 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.
- Heart-shaped diamonds require excellent symmetry to look balanced. Aim for carat weights above 0.5 where the shape is clearly visible.
Frequently Asked Questions
We currently track 1,206 comparable stones in the 0.90–0.99 carat benchmark range. Prices start around $169 and go up to $1,897.
Based on the latest market data, the average asking price is about $311 with a median around $316.
The observed spread is roughly $1,728 across tracked listings, which is about 91.1% 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 $311. The median price is $316, 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 8 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 $1,728 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 Lab Grown inventory for the 0.90–0.99 carat Heart diamond benchmark.