0.9 Carat Round Lab Grown Diamond Prices Comparison
As of May 2026, 0.9 carat round lab grown diamonds usually range from $142 to $2,299, with an average price of $605.In the last month, prices for these diamonds are down 2.4%.Compare 6,858 verified listings across 9 retailers tracked by CaratRadar.
0.9 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 6,858 verified 0.9-carat round lab grown diamonds listed across 9 online retailers. Prices in this segment range from $142 to $2,299, with an average asking price of $605 and a median of $554.
The price spread of $2,157 (93.8% 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 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.
6,858 diamonds tracked in this segment
Price range: $142 to $2,299
Average price: $605
Median price: $554
Available across 9 retailers
Savings potential: up to 93.8%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
6,858
$142
$605
$554
$2,299
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 70.7%IGI | 0.94ct | Round | E | VS2 | Ideal
From $142
Compare at $485
Save 61.7%IGI | 0.91ct | Round | E | VS2 | Excellent
From $143
Compare at $373
Save 79%IGI | 0.93ct | Round | D | VS2 | Ideal
From $145
Compare at $690
Save 60.6%IGI | 0.91ct | Round | D | VS1 | Excellent
From $145
Compare at $368
Save 69.1%IGI | 0.94ct | Round | D | VS2 | Excellent
From $146
Compare at $472
Save 70.5%IGI | 0.92ct | Round | D | VS1 | Ideal
From $146
Compare at $495
Save 76.1%IGI | 0.92ct | Round | D | VS2 | Ideal
From $146
Compare at $610
Save 63.7%IGI | 0.91ct | Round | E | SI1 | Ideal
From $147
Compare at $405
Save 75.3%IGI | 0.91ct | Round | E | VS2 | Ideal
From $148
Compare at $600
Save 66.4%IGI | 0.92ct | Round | D | VS2 | Excellent
From $149
Compare at $444
Save 73.9%IGI | 0.92ct | Round | E | VS2 | Ideal
From $149
Compare at $570
Save 72.4%IGI | 0.91ct | Round | E | SI1 | Ideal
From $149
Compare at $540
Save 60.3%IGI | 0.91ct | Round | D | VS2 | Excellent
From $149
Compare at $375
Save 66.4%IGI | 0.94ct | Round | E | VS2 | Ideal
From $150
Compare at $447
Save 73.5%IGI | 0.91ct | Round | D | VS1 | Ideal
From $151
Compare at $569
Save 73.5%IGI | 0.91ct | Round | D | VS1 | Ideal
From $151
Compare at $569
Save 73.5%IGI | 0.91ct | Round | D | VS1 | Ideal
From $151
Compare at $569
Save 73.5%IGI | 0.91ct | Round | D | VS1 | Ideal
From $151
Compare at $569
Save 73.5%IGI | 0.91ct | Round | D | VS1 | Ideal
From $151
Compare at $569
Save 73.5%IGI | 0.91ct | Round | D | VS1 | Ideal
From $151
Compare at $569
Save 73.5%IGI | 0.91ct | Round | D | VS1 | Ideal
From $151
Compare at $569
Save 73.5%IGI | 0.91ct | Round | D | VS1 | Ideal
From $151
Compare at $569
Save 76.4%IGI | 0.93ct | Round | E | VS2 | Ideal
From $151
Compare at $640
Save 75.6%IGI | 0.91ct | Round | E | VS1 | Ideal
From $151
Compare at $620
Save 59%IGI | 0.91ct | Round | D | VS1 | Ideal
From $151
Compare at $368
Save 59.9%IGI | 0.91ct | Round | E | VS1 | Ideal
From $151
Compare at $377
Save 79.9%IGI | 0.91ct | Round | F | VS1 | Very Good
From $151
Compare at $750
Save 79.9%IGI | 0.93ct | Round | D | VS2 | Excellent
From $153
Compare at $760
Save 73.5%IGI | 0.93ct | Round | D | VS2 | Ideal
From $153
Compare at $577
Save 73.5%IGI | 0.93ct | Round | D | VS2 | Ideal
From $153
Compare at $577
Save 73.4%IGI | 0.92ct | Round | D | VS1 | Ideal
From $153
Compare at $575
Save 73.4%IGI | 0.92ct | Round | D | VS1 | Ideal
From $153
Compare at $575
Save 73.4%IGI | 0.92ct | Round | D | VS1 | Ideal
From $153
Compare at $575
Save 73.4%IGI | 0.92ct | Round | D | VS1 | Ideal
From $153
Compare at $575
Save 73.4%IGI | 0.92ct | Round | D | VS1 | Ideal
From $153
Compare at $575
Save 73.4%IGI | 0.92ct | Round | D | VS1 | Ideal
From $153
Compare at $575
Save 61.7%IGI | 0.91ct | Round | F | VS1 | Excellent
From $153
Compare at $399
Save 61.7%IGI | 0.91ct | Round | F | VS1 | Excellent
From $153
Compare at $399
Save 63%IGI | 0.95ct | Round | F | VS1 | Excellent
From $153
Compare at $414
Save 76.5%IGI | 0.93ct | Round | E | VS1 | Ideal
From $153
Compare at $650
Save 42.3%IGI | 0.92ct | Round | E | VS1 | Ideal
From $153
Compare at $265
Save 63%IGI | 0.95ct | Round | F | VS1 | Ideal
From $153
Compare at $414
Save 59.9%IGI | 0.92ct | Round | E | VS1 | Excellent
From $153
Compare at $382
Save 60.2%IGI | 0.93ct | Round | E | VS1 | Excellent
From $153
Compare at $384
Save 58.5%IGI | 0.91ct | Round | D | VS1 | Excellent
From $153
Compare at $369
Save 60.4%IGI | 0.96ct | Round | D | VS1 | Excellent
From $153
Compare at $386
Save 73%IGI | 0.94ct | Round | D | VS2 | Excellent
From $154
Compare at $571
Save 73.6%IGI | 0.94ct | Round | D | VS2 | Ideal
From $154
Compare at $583
Save 73.6%IGI | 0.94ct | Round | D | VS2 | Ideal
From $154
Compare at $583
Save 62.5%IGI | 0.94ct | Round | F | VS1 | Excellent
From $154
Compare at $411
Entry pricing in this category starts around $142.
What to Know When Shopping for 0.9 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $2,157 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 $554 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.
- Round brilliants command a premium due to higher rough waste during cutting. If budget matters, consider oval or cushion shapes for similar visual size.
Frequently Asked Questions
We currently track 6,858 comparable stones in this segment. Prices start around $142 and go up to $2,299.
Based on the latest market data, the average asking price is about $605 with a median around $554.
The observed spread is roughly $2,157 across tracked listings, which is about 93.8% 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 $605. The median price is $554, 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 $2,157 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
0.8 Carat Round Lab Grown Diamond Prices
1 Carat Round Lab Grown Diamond Prices
0.7 Carat Round Lab Grown Diamond Prices
1.1 Carat Round Lab Grown Diamond Prices
0.6 Carat Round Lab Grown Diamond Prices
1.2 Carat Round Lab Grown Diamond Prices
0.5 Carat Round Lab Grown Diamond Prices
0.9 Carat Emerald Lab Grown Diamond Prices
0.9 Carat Pear Lab Grown Diamond Prices
0.9 Carat Oval Lab Grown Diamond Prices
0.9 Carat Marquise Lab Grown Diamond Prices
0.9 Carat Cushion Lab Grown Diamond Prices
Tracking Lab Grown inventory for 0.9 carat Round diamonds.