1.9 Carat Round Lab Grown Diamond Prices Comparison
As of May 2026, 1.9 carat round lab grown diamonds usually range from $290 to $7,712, with an average price of $1,356.In the last month, prices for these diamonds are down 2.8%.Compare 6,333 verified listings across 10 retailers tracked by CaratRadar.
1.9 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 6,333 verified 1.9-carat round lab grown diamonds listed across 10 online retailers. Prices in this segment range from $290 to $7,712, with an average asking price of $1,356 and a median of $1,130.
The price spread of $7,422 (96.2% 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.
6,333 diamonds tracked in this segment
Price range: $290 to $7,712
Average price: $1,356
Median price: $1,130
Available across 10 retailers
Savings potential: up to 96.2%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
6,333
$290
$1,356
$1,130
$7,712
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 77.1%IGI | 1.91ct | Round | E | SI1 | Ideal
From $300
Compare at $1,310
Save 77.9%IGI | 1.91ct | Round | E | SI1 | Ideal
From $305
Compare at $1,380
Save 69.2%IGI | 1.9ct | Round | E | VS2 | Ideal
From $314
Compare at $1,020
Save 69.6%IGI | 1.93ct | Round | G | VS2 | Excellent
From $321
Compare at $1,057
Save 68.9%IGI | 1.91ct | Round | G | VS2 | Ideal
From $322
Compare at $1,036
Save 69%IGI | 1.92ct | Round | G | VS2 | Ideal
From $324
Compare at $1,046
Save 69.3%IGI | 1.9ct | Round | G | VS1 | Excellent
From $325
Compare at $1,058
Save 70.1%IGI | 1.93ct | Round | G | VS1 | Excellent
From $326
Compare at $1,089
Save 69.5%IGI | 1.91ct | Round | G | VS1 | Excellent
From $326
Compare at $1,068
Save 69.5%IGI | 1.91ct | Round | G | VS1 | Excellent
From $326
Compare at $1,068
Save 69.5%IGI | 1.91ct | Round | G | VS1 | Excellent
From $326
Compare at $1,068
Save 77%IGI | 1.91ct | Round | H | VVS2 | Ideal
From $326
Compare at $1,420
Save 69.4%IGI | 1.94ct | Round | G | VS2 | Ideal
From $327
Compare at $1,067
Save 70.4%IGI | 1.92ct | Round | F | VS2 | Excellent
From $328
Compare at $1,108
Save 69.6%IGI | 1.92ct | Round | G | VS1 | Excellent
From $328
Compare at $1,079
Save 69.6%IGI | 1.92ct | Round | G | VS1 | Ideal
From $328
Compare at $1,078
Save 69.6%IGI | 1.9ct | Round | F | VS1 | Excellent
From $329
Compare at $1,084
Save 69.6%IGI | 1.9ct | Round | F | VS1 | Excellent
From $329
Compare at $1,084
Save 70.4%IGI | 1.95ct | Round | G | VS1 | Excellent
From $329
Compare at $1,111
Save 68.9%IGI | 1.9ct | Round | G | VS1 | Ideal
From $329
Compare at $1,058
Save 68.3%IGI | 1.9ct | Round | H | VS1 | Ideal
From $329
Compare at $1,039
Save 68.9%IGI | 1.9ct | Round | G | VS1 | Ideal
From $329
Compare at $1,058
Save 69.6%IGI | 1.9ct | Round | F | VS1 | Ideal
From $329
Compare at $1,083
Save 69.6%IGI | 1.9ct | Round | F | VS1 | Ideal
From $329
Compare at $1,084
Save 69.9%IGI | 1.91ct | Round | F | VS2 | Excellent
From $330
Compare at $1,097
Save 69.7%IGI | 1.93ct | Round | G | VS1 | Ideal
From $330
Compare at $1,089
Save 69.7%IGI | 1.93ct | Round | G | VS1 | Ideal
From $330
Compare at $1,090
Save 68%IGI | 1.91ct | Round | E | VS2 | Excellent
From $331
Compare at $1,033
Save 69.1%IGI | 1.91ct | Round | G | VS1 | Excellent
From $331
Compare at $1,070
Save 69%IGI | 1.91ct | Round | G | VS1 | Ideal
From $331
Compare at $1,069
Save 69%IGI | 1.91ct | Round | G | VS1 | Ideal
From $331
Compare at $1,069
Save 69%IGI | 1.91ct | Round | G | VS1 | Ideal
From $331
Compare at $1,069
Save 69.7%IGI | 1.91ct | Round | F | VS1 | Ideal
From $331
Compare at $1,093
Save 68.5%IGI | 1.9ct | Round | G | VS1 | Excellent
From $334
Compare at $1,059
Save 69.3%IGI | 1.93ct | Round | G | VS1 | Excellent
From $335
Compare at $1,090
Save 69.3%IGI | 1.93ct | Round | G | VS1 | Ideal
From $335
Compare at $1,090
Save 68.6%IGI | 1.94ct | Round | G | VS2 | Excellent
From $335
Compare at $1,068
Save 69%IGI | 1.92ct | Round | E | VS1 | Ideal
From $337
Compare at $1,086
Save 68.8%IGI | 1.9ct | Round | F | VS1 | Ideal
From $338
Compare at $1,085
Save 74.8%IGI | 1.9ct | Round | H | VS1 | Excellent
From $338
Compare at $1,340
Save 69.1%IGI | 1.93ct | Round | E | VS1 | Excellent
From $339
Compare at $1,096
Save 68.4%IGI | 1.91ct | Round | E | VS1 | Ideal
From $340
Compare at $1,075
Save 68.4%IGI | 1.91ct | Round | E | VS1 | Excellent
From $340
Compare at $1,075
Save 69.7%IGI | 1.94ct | Round | F | VS1 | Excellent
From $341
Compare at $1,127
Save 79.8%IGI | 1.91ct | Round | F | VS1 | Excellent
From $343
Compare at $1,700
Save 76.2%IGI | 1.94ct | Round | F | VS2 | Excellent
From $345
Compare at $1,450
Save 68.9%IGI | 1.93ct | Round | D | VS1 | Ideal
From $347
Compare at $1,116
Save 76%IGI | 1.96ct | Round | E | VS2 | Ideal
From $348
Compare at $1,450
Save 68.7%IGI | 1.9ct | Round | G | VVS2 | Excellent
From $349
Compare at $1,114
Save 68.7%IGI | 1.9ct | Round | G | VVS2 | Excellent
From $349
Compare at $1,114
Entry pricing in this category starts around $290.
What to Know When Shopping for 1.9 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $7,422 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 $1,130 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 6,333 comparable stones in this segment. Prices start around $290 and go up to $7,712.
Based on the latest market data, the average asking price is about $1,356 with a median around $1,130.
The observed spread is roughly $7,422 across tracked listings, which is about 96.2% 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 $1,356. The median price is $1,130, 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 10 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 $7,422 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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