0.9 Carat Round Lab Grown Diamond Prices Comparison
As of April 2026, 0.9 carat round lab grown diamonds usually range from $161 to $2,480, with an average price of $642.In the last month, prices for these diamonds are down 1%.Compare 4,752 verified listings across 6 retailers tracked by CaratRadar.
0.9 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 4,752 verified 0.9-carat round lab grown diamonds listed across 6 online retailers. Prices in this segment range from $161 to $2,480, with an average asking price of $642 and a median of $585.
The price spread of $2,319 (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.
4,752 diamonds tracked in this segment
Price range: $161 to $2,480
Average price: $642
Median price: $585
Available across 6 retailers
Savings potential: up to 93.5%
Price Range Overview
As of Apr 12, 2026Real market range for this carat, shape, and diamond type.
4,752
$161
$642
$585
$2,480
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 30.6%GIA | 0.91ct | Round | D | VS2 | Excellent
From $457
Compare at $659
Save 30.1%GIA | 0.91ct | Round | D | SI1 | Excellent
From $478
Compare at $684
Save 59.4%GIA | 0.91ct | Round | D | VVS1 | Excellent
From $874
Compare at $2,155
Save 30.1%GIA | 0.91ct | Round | E | SI1 | Excellent
From $478
Compare at $684
Save 35.1%GIA | 0.91ct | Round | E | VS2 | Ideal
From $552
Compare at $850
GIA | 0.91ct | Round | F | VS2 | Good
From $545
Compare at $770
Save 74.5%GIA | 0.91ct | Round | E | VS2 | Excellent
From $550
Compare at $2,155
Save 76.9%GIA | 0.91ct | Round | F | VVS1 | Excellent
From $702
Compare at $3,040
Save 75.3%GIA | 0.91ct | Round | E | VVS1 | Excellent
From $814
Compare at $3,300
Save 76.4%GIA | 0.91ct | Round | D | IF | Excellent
From $942
Compare at $3,990
Save 32.5%GIA | 0.91ct | Round | E | VS1 | Good
From $3,068
Compare at $4,548
Save 30.3%GIA | 0.91ct | Round | D | SI1 | Excellent
From $441
Compare at $633
Save 30.6%GIA | 0.91ct | Round | D | VS2 | Excellent
From $457
Compare at $659
Save 76.1%GIA | 0.91ct | Round | D | VVS1 | Excellent
From $895
Compare at $3,750
Save 76.1%GIA | 0.91ct | Round | D | VVS1 | Excellent
From $895
Compare at $3,750
Save 84.7%GIA | 0.91ct | Round | D | VVS1 | Excellent
From $546
Compare at $3,570
Save 75.9%GIA | 0.91ct | Round | E | IF | Excellent
From $1,001
Compare at $4,150
IGI | 0.91ct | Round | I | SI1 | Ideal
From $2,094
Compare at $2,095
IGI | 0.91ct | Round | I | SI1 | Ideal
From $2,094
Compare at $2,095
Save 12.9%IGI | 0.91ct | Round | E | SI1 | Very Good
From $697
Compare at $800
Save 40.6%IGI | 0.91ct | Round | E | VS2 | Very Good
From $266
Compare at $448
Save 27.8%IGI | 0.91ct | Round | E | SI1 | Excellent
From $482
Compare at $668
Save 38.4%IGI | 0.91ct | Round | G | VS1 | Ideal
From $2,850
Compare at $4,630
IGI | 0.91ct | Round | J | VS1 | Ideal
From $2,171
Compare at $2,175
Save 48.7%IGI | 0.91ct | Round | D | VVS2 | Excellent
From $295
Compare at $575
Save 48.7%IGI | 0.91ct | Round | D | VVS2 | Excellent
From $295
Compare at $575
IGI | 0.91ct | Round | K | SI1 | Ideal
From $1,077
Compare at $1,080
IGI | 0.91ct | Round | H | VS1 | Ideal
From $2,638
Compare at $2,640
IGI | 0.91ct | Round | H | VS1 | Ideal
From $2,638
Compare at $2,640
Save 53.2%IGI | 0.91ct | Round | D | VS1 | Ideal
From $266
Compare at $569
Save 49.7%IGI | 0.91ct | Round | D | VVS2 | Ideal
From $295
Compare at $587
Save 49.7%IGI | 0.91ct | Round | D | VVS2 | Ideal
From $295
Compare at $587
Save 27.9%IGI | 0.91ct | Round | E | VS1 | Excellent
From $538
Compare at $746
Save 25.8%IGI | 0.91ct | Round | D | VS1 | Ideal
From $569
Compare at $767
Save 40.2%IGI | 0.91ct | Round | D | VS1 | Ideal
From $277
Compare at $463
Save 53.2%IGI | 0.91ct | Round | D | VS1 | Ideal
From $266
Compare at $569
Save 27.9%IGI | 0.91ct | Round | E | VS1 | Ideal
From $538
Compare at $746
Save 53.2%IGI | 0.91ct | Round | D | VS1 | Ideal
From $266
Compare at $569
Save 49.7%IGI | 0.91ct | Round | D | VVS2 | Ideal
From $295
Compare at $587
Save 25.8%IGI | 0.91ct | Round | D | VS1 | Ideal
From $569
Compare at $767
Save 48.7%IGI | 0.91ct | Round | D | VVS2 | Excellent
From $295
Compare at $575
Save 53.4%IGI | 0.91ct | Round | D | VS2 | Ideal
From $263
Compare at $564
Save 53.2%IGI | 0.91ct | Round | D | VS1 | Ideal
From $266
Compare at $569
Save 53.2%IGI | 0.91ct | Round | D | VS1 | Ideal
From $266
Compare at $569
Save 40.5%IGI | 0.91ct | Round | D | SI1 | Excellent
From $270
Compare at $453
Save 27%IGI | 0.91ct | Round | F | VVS2 | Ideal
From $526
Compare at $720
Save 32.9%IGI | 0.91ct | Round | D | VS1 | Ideal
From $401
Compare at $598
Save 53.2%IGI | 0.91ct | Round | D | VS1 | Ideal
From $266
Compare at $569
Save 51.2%IGI | 0.91ct | Round | D | SI1 | Ideal
From $317
Compare at $650
Save 53.4%IGI | 0.91ct | Round | D | VS2 | Ideal
From $263
Compare at $564
Entry pricing in this category starts around $161.
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 $2,319 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 $585 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 4,752 comparable stones in this segment. Prices start around $161 and go up to $2,480.
Based on the latest market data, the average asking price is about $642 with a median around $585.
The observed spread is roughly $2,319 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 our data, the median price is $585, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 6 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 $2,319 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 0.9 carat Round diamonds.