1.9 Carat Round Lab Grown Diamond Prices Comparison
As of February 2026, 1.9 carat round lab grown diamonds usually range from $480 to $9,380, with an average price of $832.In the last month, prices for these diamonds are down 5.5%.Compare 5,526 verified listings across 10 retailers tracked by CaratRadar.
1.9 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 5,526 verified 1.9-carat round lab grown diamonds listed across 10 online retailers. Prices in this segment range from $480 to $9,380, with an average asking price of $832 and a median of $746.
The price spread of $8,900 (94.9% 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.
5,526 diamonds tracked in this segment
Price range: $480 to $9,380
Average price: $832
Median price: $746
Available across 10 retailers
Savings potential: up to 94.9%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
5,526
$480
$832
$746
$9,380
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 63.6%1.86ct | Round | I | VS1 | Ideal
From $2,680
Compare at $7,368
IGISave 65.1%1.86ct | Round | G | VS2 | Ideal
From $3,140
Compare at $9,001
IGISave 73.6%1.86ct | Round | F | VS1 | Excellent
From $915
Compare at $3,470
IGISave 80.3%1.86ct | Round | F | VS2 | Ideal
From $549
Compare at $2,780
IGISave 64.7%1.86ct | Round | I | SI1 | Ideal
From $2,280
Compare at $6,468
IGISave 41.6%1.86ct | Round | H | VVS2 | Very Good
From $869
Compare at $1,488
IGISave 78.5%1.86ct | Round | E | VS1 | Excellent
From $564
Compare at $2,620
IGISave 80.2%1.86ct | Round | D | VVS2 | Ideal
From $651
Compare at $3,280
IGISave 68.5%1.86ct | Round | E | VVS2 | Excellent
From $811
Compare at $2,571
IGISave 69.5%1.86ct | Round | D | VS1 | Excellent
From $733
Compare at $2,400
IGISave 74.3%1.86ct | Round | E | VS1 | Ideal
From $754
Compare at $2,930
IGISave 75.5%1.86ct | Round | F | VS1 | Ideal
From $685
Compare at $2,790
IGISave 80%1.86ct | Round | D | VVS2 | Ideal
From $651
Compare at $3,250
GIASave 77.4%1.86ct | Round | E | VS1 | Excellent
From $1,338
Compare at $5,920
GIASave 77.4%1.86ct | Round | E | VS1 | Excellent
From $1,338
Compare at $5,920
GIASave 80.8%1.86ct | Round | D | SI1 | Excellent
From $856
Compare at $4,460
GIASave 84.1%1.86ct | Round | D | VVS1 | Excellent
From $1,077
Compare at $6,770
GIASave 83.4%1.86ct | Round | F | VVS1 | Ideal
From $1,095
Compare at $6,590
IGISave 52.3%1.86ct | Round | E | VS2 | Excellent
From $656
Compare at $1,375
IGISave 62.7%1.86ct | Round | J | SI1 | Ideal
From $2,050
Compare at $5,498
IGISave 63.6%1.86ct | Round | I | VS1 | Ideal
From $2,680
Compare at $7,368
IGISave 64.7%1.86ct | Round | I | SI1 | Ideal
From $2,280
Compare at $6,468
IGISave 64.7%1.86ct | Round | I | SI1 | Ideal
From $2,280
Compare at $6,468
IGISave 63.2%1.86ct | Round | J | VS1 | Ideal
From $2,300
Compare at $6,250
IGISave 47.7%1.86ct | Round | H | SI2 | Ideal
From $821
Compare at $1,570
IGISave 71.7%1.86ct | Round | F | VS1 | Ideal
From $747
Compare at $2,640
IGISave 79.5%1.86ct | Round | F | VS1 | Ideal
From $630
Compare at $3,080
IGISave 81%1.86ct | Round | E | SI1 | Ideal
From $599
Compare at $3,160
IGISave 66%1.86ct | Round | F | VS2 | Ideal
From $3,540
Compare at $10,401
IGISave 80.1%1.86ct | Round | E | VS1 | Ideal
From $639
Compare at $3,210
IGISave 78.1%1.86ct | Round | F | VS1 | Ideal
From $561
Compare at $2,560
IGISave 44%1.86ct | Round | E | VS1 | Very Good
From $564
Compare at $1,006
IGISave 45.7%1.86ct | Round | F | VVS2 | Very Good
From $593
Compare at $1,091
IGISave 79.1%1.86ct | Round | H | VS1 | Ideal
From $544
Compare at $2,600
IGISave 66.5%1.86ct | Round | F | VS1 | Ideal
From $3,850
Compare at $11,501
IGISave 69.3%1.86ct | Round | F | VVS2 | Ideal
From $752
Compare at $2,450
IGISave 75.4%1.86ct | Round | F | VS1 | Ideal
From $685
Compare at $2,780
IGISave 74%1.86ct | Round | D | VS1 | Ideal
From $747
Compare at $2,870
IGISave 77.7%1.86ct | Round | F | VS1 | Ideal
From $615
Compare at $2,760
IGISave 79.3%1.86ct | Round | E | VS1 | Excellent
From $635
Compare at $3,070
IGISave 66.9%1.86ct | Round | E | VS1 | Ideal
From $4,070
Compare at $12,300
IGISave 75.4%1.86ct | Round | F | VS1 | Ideal
From $685
Compare at $2,780
IGISave 83.6%1.86ct | Round | F | VVS1 | Ideal
From $933
Compare at $5,690
IGISave 69%1.86ct | Round | E | VVS2 | Ideal
From $948
Compare at $3,060
IGISave 69.3%1.86ct | Round | F | VVS2 | Ideal
From $752
Compare at $2,450
IGISave 74%1.86ct | Round | E | VS1 | Ideal
From $754
Compare at $2,900
IGISave 41.7%1.86ct | Round | F | VVS2 | Excellent
From $1,679
Compare at $2,880
IGISave 41.7%1.86ct | Round | F | VVS2 | Ideal
From $1,679
Compare at $2,880
IGISave 43%1.86ct | Round | D | VS1 | Ideal
From $652
Compare at $1,143
IGISave 78.5%1.86ct | Round | E | VS1 | Excellent
From $564
Compare at $2,620
Entry pricing in this category starts around $480.
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 $8,900 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 $746 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 5,526 comparable stones in this segment. Prices start around $480 and go up to $9,380.
Based on the latest market data, the average asking price is about $832 with a median around $746.
The observed spread is roughly $8,900 across tracked listings, which is about 94.9% 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 $746, 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 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 $8,900 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 1.9 carat Round diamonds.