1.5 Carat Lab Grown Diamond Prices Comparison
As of April 2026, the average price of a 1.5 carat lab grown diamond is $1,655.1.5 carat diamonds can cost anywhere from $253 to $22,131 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are up 4.7%.Compare 128,648 verified listings across 12 retailers in the tables below.
1.5 Carat Lab Grown Diamond Market Overview
CaratRadar currently tracks 128,648 verified 1.5-carat lab grown diamonds listed across 12 online retailers. Prices in this segment range from $253 to $22,131, with an average asking price of $1,655 and a median of $1,633.
The price spread of $21,878 (98.9% 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.
128,648 diamonds tracked in this segment
Price range: $253 to $22,131
Average price: $1,655
Median price: $1,633
Available across 12 retailers
Savings potential: up to 98.9%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
128,648
$253
$1,655
$1,633
$22,131
Price History
Price Comparison Matrix
1.5 Carat Lab Grown Diamond Prices by Shape
Shape-level averages for this carat and type. Open each shape page for full market detail.
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 63.8%GCAL | 1.5ct | Antique | E | VVS2 | Very Good
From $2,340
Compare at $6,470
Save 58.8%IGI | 1.51ct | Antique | E | VVS2 | Ideal
From $1,010
Compare at $2,450
Save 58.7%IGI | 1.51ct | Antique | D | VVS2 | Ideal
From $1,045
Compare at $2,530
Save 58.7%IGI | 1.51ct | Antique | D | VVS2 | Ideal
From $1,045
Compare at $2,530
Save 58.7%IGI | 1.51ct | Antique | D | VVS2 | Ideal
From $1,045
Compare at $2,530
Save 64.9%IGI | 1.51ct | Antique | D | VVS1 | Ideal
From $1,142
Compare at $3,250
Save 75.1%IGI | 1.52ct | Antique | D | VVS1 | Ideal
From $1,082
Compare at $4,340
Save 65.2%IGI | 1.52ct | Antique | D | VVS2 | Ideal
From $1,052
Compare at $3,020
Save 58.7%IGI | 1.52ct | Antique | D | VVS2 | Ideal
From $1,052
Compare at $2,550
Save 65.2%IGI | 1.52ct | Antique | D | VVS2 | Ideal
From $1,052
Compare at $3,020
Save 65.2%IGI | 1.52ct | Antique | D | VVS2 | Ideal
From $1,052
Compare at $3,020
Save 58.7%IGI | 1.52ct | Antique | D | VVS2 | Ideal
From $1,052
Compare at $2,550
Save 60.7%IGI | 1.52ct | Antique | D | VVS1 | Ideal
From $1,092
Compare at $2,780
Save 65.4%IGI | 1.52ct | Antique | E | VS1 | Ideal
From $982
Compare at $2,840
Save 68%IGI | 1.53ct | Antique | D | VS1 | Ideal
From $641
Compare at $2,000
Save 65.2%IGI | 1.53ct | Antique | D | VVS2 | Ideal
From $1,059
Compare at $3,040
Save 65.2%IGI | 1.53ct | Antique | D | VVS2 | Ideal
From $1,059
Compare at $3,040
Save 65.2%IGI | 1.53ct | Antique | E | VVS2 | Ideal
From $1,024
Compare at $2,940
Save 58.6%IGI | 1.53ct | Antique | D | VVS2 | Ideal
From $1,059
Compare at $2,560
Save 65%IGI | 1.54ct | Antique | D | VVS2 | Ideal
From $1,066
Compare at $3,050
Save 58.7%IGI | 1.55ct | Antique | E | VVS1 | Ideal
From $1,115
Compare at $2,700
Save 58.7%IGI | 1.55ct | Antique | D | VVS2 | Ideal
From $1,073
Compare at $2,600
Save 65.2%IGI | 1.55ct | Antique | E | VVS2 | Ideal
From $1,037
Compare at $2,980
Save 60.8%IGI | 1.56ct | Antique | D | VVS1 | Ideal
From $1,121
Compare at $2,860
Save 58.6%IGI | 1.56ct | Antique | D | VVS2 | Ideal
From $1,080
Compare at $2,610
Save 65%IGI | 1.56ct | Antique | D | VVS2 | Ideal
From $1,080
Compare at $3,090
Save 34.4%GIA | 1.57ct | Antique | D | VS2 | Ideal
From $2,885
Compare at $4,400
Save 65.4%IGI | 1.57ct | Antique | E | VVS2 | Ideal
From $879
Compare at $2,540
Save 78.1%IGI | 1.58ct | Antique | E | IF | Ideal
From $1,344
Compare at $6,130
Save 65.1%IGI | 1.58ct | Antique | D | VS1 | Ideal
From $1,057
Compare at $3,030
Save 69.3%IGI | 1.59ct | Antique | D | VVS1 | Ideal
From $1,135
Compare at $3,700
Save 58.8%IGI | 1.59ct | Antique | D | VS1 | Ideal
From $1,064
Compare at $2,580
Save 65.1%IGI | 1.59ct | Antique | D | VVS2 | Ideal
From $1,100
Compare at $3,150
Save 77.3%GCAL | 1.5ct | Asscher | E | SI2 | Excellent
From $717
Compare at $3,150
Save 41.5%GIA | 1.5ct | Asscher | D | VVS2 | Ideal
From $2,645
Compare at $4,520
GIA | 1.5ct | Asscher | D | VVS2 | Ideal
From $3,910
GIA | 1.5ct | Asscher | D | VVS2 | Excellent
From $989
Compare at $1,571
Save 43.3%GIA | 1.5ct | Asscher | D | VS1 | Ideal
From $2,465
Compare at $4,350
Save 78.6%GIA | 1.5ct | Asscher | D | VVS2 | Excellent
From $1,531
Compare at $7,170
GIA | 1.5ct | Asscher | D | VS1 | Excellent
From $892
Compare at $1,409
Save 64.8%IGI | 1.5ct | Asscher | D | VS2 | Ideal
From $620
Compare at $1,760
Save 34.8%IGI | 1.5ct | Asscher | D | SI1 | Ideal
From $1,395
Compare at $2,140
Save 68.7%IGI | 1.5ct | Asscher | D | SI1 | Ideal
From $416
Compare at $1,330
IGI | 1.5ct | Asscher | D | VVS2 | Ideal
From $2,600
Compare at $2,730
Save 68.9%IGI | 1.5ct | Asscher | D | VS2 | Very Good
From $553
Compare at $1,780
Save 67.8%IGI | 1.5ct | Asscher | F | VS1 | Ideal
From $680
Compare at $2,110
Save 32.8%IGI | 1.5ct | Asscher | D | VS2 | Ideal
From $680
Compare at $1,011
IGI | 1.5ct | Asscher | G | VS1 | Ideal
From $560
Compare at $600
Save 72.9%IGI | 1.5ct | Asscher | D | VS2 | Ideal
From $620
Compare at $2,290
Save 67.9%IGI | 1.5ct | Asscher | D | SI1 | Ideal
From $620
Compare at $1,930
Entry pricing in this category starts around $253.
What to Know When Shopping for 1.5 Carat Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $21,878 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 $1,633 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.
Frequently Asked Questions
We currently track 128,648 comparable stones in this segment. Prices start around $253 and go up to $22,131.
Based on the latest market data, the average asking price is about $1,655 with a median around $1,633.
The observed spread is roughly $21,878 across tracked listings, which is about 98.9% 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 $1,633, 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 12 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 $21,878 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.
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