2.5 Carat Lab Grown Diamond Prices Comparison
As of July 2026, the average price of a 2.5 carat lab grown diamond is $1,878.2.5 carat diamonds can cost anywhere from $110 to $15,788 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are down 2.1%.Compare 49,118 verified listings across 15 retailers in the tables below.
2.5 Carat Lab Grown Diamond Market Overview
CaratRadar currently tracks 49,118 verified 2.5-carat lab grown diamonds listed across 15 online retailers. Prices in this segment range from $110 to $15,788, with an average asking price of $1,878 and a median of $1,340.
The price spread of $15,678 (99.3% 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.
49,118 diamonds tracked in this segment
Price range: $110 to $15,788
Average price: $1,878
Median price: $1,340
Available across 15 retailers
Savings potential: up to 99.3%
Price Range Overview
As of Jul 12, 2026Real market range for this carat, shape, and diamond type.
49,118
$110
$1,878
$1,340
$15,788
Price History
Price Comparison Matrix
2.5 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 70.2%IGI | 2.55ct | Emerald | I | VVS2 | Ideal
From $333
Compare at $1,118
Save 70.4%IGI | 2.54ct | Emerald | H | VVS2 | Ideal
From $354
Compare at $1,197
Save 71.1%IGI | 2.59ct | Emerald | H | VVS2 | Ideal
From $358
Compare at $1,240
Save 69.3%IGI | 2.51ct | Emerald | G | VS1 | Very Good
From $360
Compare at $1,173
Save 69.1%IGI | 2.59ct | Emerald | G | VS1 | Very Good
From $363
Compare at $1,173
Save 69.5%IGI | 2.59ct | Emerald | G | VS1 | Excellent
From $363
Compare at $1,192
Save 70.6%IGI | 2.59ct | Emerald | H | VVS2 | Ideal
From $365
Compare at $1,242
Save 66.1%IGI | 2.59ct | Emerald | H | VS1 | Very Good
From $365
Compare at $1,076
Save 65.9%IGI | 2.59ct | Emerald | H | VS1 | Excellent
From $367
Compare at $1,076
Save 69.1%IGI | 2.59ct | Emerald | H | VS1 | Very Good
From $368
Compare at $1,192
Save 69.3%IGI | 2.58ct | Emerald | H | VS1 | Very Good
From $371
Compare at $1,207
Save 64.2%IGI | 2.5ct | Emerald | G | VS1 | Very Good
From $372
Compare at $1,038
Save 64.2%IGI | 2.5ct | Emerald | G | VS1 | Ideal
From $372
Compare at $1,039
Save 64.2%IGI | 2.53ct | Oval | G | VS1 | Very Good
From $374
Compare at $1,046
Save 54%IGI | 2.51ct | Emerald | G | VS1 | Very Good
From $375
Compare at $815
Save 64.4%IGI | 2.52ct | Emerald | G | VS1 | Very Good
From $375
Compare at $1,054
Save 64.4%IGI | 2.52ct | Emerald | G | VS1 | Very Good
From $375
Compare at $1,054
Save 65.1%IGI | 2.55ct | Emerald | G | VS1 | Very Good
From $376
Compare at $1,077
IGI | 2.5ct | Emerald | G | VS1 | Very Good
From $377
Compare at $812
Save 64.5%IGI | 2.55ct | Oval | G | VS1 | Very Good
From $377
Compare at $1,062
Save 64.3%IGI | 2.53ct | Emerald | G | VS1 | Ideal
From $377
Compare at $1,057
Save 63.6%IGI | 2.5ct | Emerald | G | VS1 | Ideal
From $377
Compare at $1,036
Save 69.3%IGI | 2.52ct | Oval | F | SI1 | Ideal
From $378
Compare at $1,232
Save 70.9%IGI | 2.52ct | Emerald | G | VS1 | Excellent
From $379
Compare at $1,301
Save 65.3%IGI | 2.57ct | Emerald | G | VS1 | Very Good
From $379
Compare at $1,091
Save 69.5%IGI | 2.59ct | Emerald | H | VVS2 | Excellent
From $381
Compare at $1,250
Save 68.9%IGI | 2.58ct | Emerald | G | VS1 | Excellent
From $381
Compare at $1,225
Save 68.9%IGI | 2.58ct | Emerald | G | VS1 | Very Good
From $381
Compare at $1,225
Save 69.4%IGI | 2.59ct | Emerald | H | VVS2 | Ideal
From $381
Compare at $1,246
Save 64.9%IGI | 2.58ct | Oval | G | VS1 | Very Good
From $381
Compare at $1,086
Save 64.9%IGI | 2.58ct | Oval | G | VS1 | Very Good
From $381
Compare at $1,084
Save 62.8%IGI | 2.5ct | Oval | G | VS1 | Very Good
From $381
Compare at $1,025
Save 65.7%IGI | 2.5ct | Oval | E | SI1 | Ideal
From $382
Compare at $1,114
Save 64.8%IGI | 2.56ct | Emerald | G | VS1 | Very Good
From $382
Compare at $1,085
Save 65.5%IGI | 2.59ct | Emerald | G | VS1 | Excellent
From $382
Compare at $1,107
Save 53.4%IGI | 2.51ct | Emerald | G | VS1 | Excellent
From $382
Compare at $819
Save 65.5%IGI | 2.59ct | Emerald | G | VS1 | Very Good
From $382
Compare at $1,107
Save 65.5%IGI | 2.59ct | Emerald | G | VS1 | Ideal
From $382
Compare at $1,107
Save 65.5%IGI | 2.59ct | Emerald | G | VS1 | Very Good
From $382
Compare at $1,107
Save 62.9%IGI | 2.51ct | Oval | G | VS1 | Very Good
From $382
Compare at $1,031
Save 64.1%IGI | 2.54ct | Emerald | G | VS1 | Ideal
From $383
Compare at $1,066
Save 64.1%IGI | 2.54ct | Emerald | G | VS1 | Excellent
From $383
Compare at $1,067
Save 69.3%IGI | 2.59ct | Emerald | H | VVS2 | Very Good
From $384
Compare at $1,250
Save 69.3%IGI | 2.59ct | Emerald | H | VVS2 | Excellent
From $384
Compare at $1,250
Save 69.3%IGI | 2.59ct | Emerald | H | VVS2 | Excellent
From $384
Compare at $1,250
Save 70.9%IGI | 2.52ct | Emerald | G | VS1 | Very Good
From $384
Compare at $1,319
Save 70.9%IGI | 2.52ct | Emerald | G | VS1 | Excellent
From $384
Compare at $1,319
Save 70.9%IGI | 2.52ct | Emerald | G | VS1 | Very Good
From $384
Compare at $1,319
Save 54.4%IGI | 2.55ct | Emerald | G | VS1 | Very Good
From $384
Compare at $843
Save 70.9%IGI | 2.52ct | Emerald | G | VS1 | Excellent
From $384
Compare at $1,319
Entry pricing in this category starts around $110.
What to Know When Shopping for 2.5 Carat Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $15,678 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 $1,340 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 49,118 comparable stones in this segment. Prices start around $110 and go up to $15,788.
Based on the latest market data, the average asking price is about $1,878 with a median around $1,340.
The observed spread is roughly $15,678 across tracked listings, which is about 99.3% 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 $1,878. The median price is $1,340, 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 15 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 $15,678 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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