2.5 Carat Radiant Lab Grown Diamond Prices Comparison
As of April 2026, 2.5 carat radiant lab grown diamonds usually range from $425 to $12,095, with an average price of $2,419.In the last month, prices for these diamonds are flat -0%.Compare 3,061 verified listings across 11 retailers tracked by CaratRadar.
2.5 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 3,061 verified 2.5-carat radiant lab grown diamonds listed across 11 online retailers. Prices in this segment range from $425 to $12,095, with an average asking price of $2,419 and a median of $1,797.
The price spread of $11,670 (96.5% 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.
3,061 diamonds tracked in this segment
Price range: $425 to $12,095
Average price: $2,419
Median price: $1,797
Available across 11 retailers
Savings potential: up to 96.5%
Price Range Overview
As of Apr 13, 2026Real market range for this carat, shape, and diamond type.
3,061
$425
$2,419
$1,797
$12,095
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 30.2%GIA | 2.5ct | Radiant | E | VS1 | Excellent
From $1,793
Compare at $2,569
Save 77.6%GIA | 2.5ct | Radiant | D | VVS1 | Excellent
From $2,050
Compare at $9,160
Save 74.4%GIA | 2.5ct | Radiant | D | IF | Good
From $4,563
Compare at $17,810
Save 15.3%GIA | 2.5ct | Radiant | E | VVS1 | Excellent
From $2,019
Compare at $2,383
Save 75.6%GIA | 2.5ct | Radiant | D | IF | Excellent
From $4,072
Compare at $16,670
Save 77.8%GIA | 2.5ct | Radiant | D | VVS2 | Ideal
From $1,805
Compare at $8,120
Save 77.1%GIA | 2.5ct | Radiant | G | VVS2 | Ideal
From $1,471
Compare at $6,420
Save 78%GIA | 2.5ct | Radiant | D | VVS2 | Excellent
From $2,193
Compare at $9,960
Save 75.6%GIA | 2.5ct | Radiant | D | IF | Ideal
From $4,072
Compare at $16,670
Save 61.5%GIA | 2.5ct | Radiant | G | VS1 | Excellent
From $1,075
Compare at $2,790
Save 50.9%GIA | 2.5ct | Radiant | D | IF | Ideal
From $9,230
Compare at $18,810
IGI | 2.5ct | Radiant | E | VS1 | Very Good
From $2,129
Compare at $2,130
IGI | 2.5ct | Radiant | H | VS2 | Ideal
From $6,844
Compare at $6,845
IGI | 2.5ct | Radiant | G | VS1 | Ideal
From $8,118
Compare at $8,120
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
IGI | 2.5ct | Radiant | H | VS2 | Ideal
From $6,844
Compare at $6,845
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
IGI | 2.5ct | Radiant | G | VS1 | Ideal
From $8,118
Compare at $8,120
IGI | 2.5ct | Radiant | H | VS1 | Ideal
From $6,997
Compare at $7,000
IGI | 2.5ct | Radiant | H | VS2 | Ideal
From $6,844
Compare at $6,845
IGI | 2.5ct | Radiant | G | SI1 | Ideal
From $6,667
Compare at $6,670
IGI | 2.5ct | Radiant | G | VS1 | Ideal
From $8,118
Compare at $8,120
IGI | 2.5ct | Radiant | G | VS1 | Ideal
From $8,118
Compare at $8,120
IGI | 2.5ct | Radiant | H | VS2 | Ideal
From $6,844
Compare at $6,845
IGI | 2.5ct | Radiant | G | VS1 | Ideal
From $8,118
Compare at $8,120
IGI | 2.5ct | Radiant | H | VS1 | Ideal
From $6,997
Compare at $7,000
IGI | 2.5ct | Radiant | G | SI1 | Ideal
From $6,667
Compare at $6,670
IGI | 2.5ct | Radiant | H | VS1 | Very Good
From $6,997
Compare at $7,000
IGI | 2.5ct | Radiant | H | VS1 | Ideal
From $6,997
Compare at $7,000
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
IGI | 2.5ct | Radiant | G | SI1 | Ideal
From $6,667
Compare at $6,670
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
IGI | 2.5ct | Radiant | G | VVS2 | Ideal
From $8,511
Compare at $8,515
Save 55.8%IGI | 2.5ct | Radiant | H | VS2 | Very Good
From $1,428
Compare at $3,230
Save 59.3%IGI | 2.5ct | Radiant | G | VS1 | Ideal
From $961
Compare at $2,360
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
IGI | 2.5ct | Radiant | G | SI1 | Ideal
From $6,667
Compare at $6,670
Save 54.4%IGI | 2.5ct | Radiant | G | SI1 | Ideal
From $958
Compare at $2,100
Save 75.6%IGI | 2.5ct | Radiant | G | VS1 | Ideal
From $961
Compare at $3,940
IGI | 2.5ct | Radiant | G | VS1 | Ideal
From $8,118
Compare at $8,120
IGI | 2.5ct | Radiant | G | VS1 | Ideal
From $8,118
Compare at $8,120
IGI | 2.5ct | Radiant | H | VVS2 | Ideal
From $7,286
Compare at $7,290
IGI | 2.5ct | Radiant | F | VVS2 | Ideal
From $8,889
Compare at $8,890
Save 34.2%IGI | 2.5ct | Radiant | G | VS2 | Ideal
From $7,710
Compare at $11,720
IGI | 2.5ct | Radiant | H | VS2 | Ideal
From $6,844
Compare at $6,845
Entry pricing in this category starts around $425.
What to Know When Shopping for 2.5 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $11,670 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 $1,797 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.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 3,061 comparable stones in this segment. Prices start around $425 and go up to $12,095.
Based on the latest market data, the average asking price is about $2,419 with a median around $1,797.
The observed spread is roughly $11,670 across tracked listings, which is about 96.5% 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 $1,797, 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 11 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 $11,670 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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