15 Carat Oval Lab Grown Diamond Prices Comparison
As of July 2026, 15 carat oval lab grown diamonds usually range from $3,255 to $83,874, with an average price of $16,360.In the last month, prices for these diamonds are down 2.8%.Compare 50 verified listings across 5 retailers tracked by CaratRadar.
15 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 50 verified 15-carat oval lab grown diamonds listed across 5 online retailers. Prices in this segment range from $3,255 to $83,874, with an average asking price of $16,360 and a median of $14,538.
The price spread of $80,619 (96.1% 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.
50 diamonds tracked in this segment
Price range: $3,255 to $83,874
Average price: $16,360
Median price: $14,538
Available across 5 retailers
Savings potential: up to 96.1%
Price Range Overview
As of Jul 13, 2026Real market range for this carat, shape, and diamond type.
50
$3,255
$16,360
$14,538
$83,874
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 77.9%IGI | 15.04ct | Oval | G | VVS2 | Ideal
From $4,517
Compare at $20,463
Save 78%IGI | 15.06ct | Oval | G | VVS2 | Ideal
From $4,523
Compare at $20,515
Save 76.4%IGI | 15.05ct | Oval | H | VS2 | Ideal
From $4,607
Compare at $19,559
Save 77.5%IGI | 15.06ct | Oval | G | VVS2 | Very Good
From $4,614
Compare at $20,523
Save 28.2%IGI | 15.06ct | Oval | F | VVS2 | Excellent
From $4,755
Compare at $6,619
Save 75%IGI | 15.02ct | Oval | G | VVS2 | Excellent
From $5,113
Compare at $20,448
Save 75%IGI | 15.05ct | Oval | G | VVS2 | Excellent
From $5,122
Compare at $20,527
Save 79.1%IGI | 15.05ct | Oval | G | VS2 | Excellent
From $5,156
Compare at $24,670
Save 76.9%IGI | 15.03ct | Oval | FANCY | VS1 | Good
From $5,266
Compare at $22,788
Save 78.5%IGI | 15ct | Oval | G | VS2 | Ideal
From $5,299
Compare at $24,640
Save 76.9%IGI | 15.03ct | Oval | FANCY | VS1 | Very Good
From $5,566
Compare at $24,091
Save 68.2%IGI | 15.01ct | Oval | G | VS1 | Very Good
From $5,636
Compare at $17,710
Save 66.1%IGI | 15.09ct | Oval | F | VS1 | Very Good
From $5,649
Compare at $16,683
Save 72.6%IGI | 15.09ct | Oval | G | VVS2 | Ideal
From $5,665
Compare at $20,641
Save 61.7%IGI | 15.06ct | Oval | F | VVS2 | Excellent
From $5,786
Compare at $15,116
Save 12.4%IGI | 15.09ct | Oval | F | VS1 | Very Good
From $5,800
Compare at $6,621
Save 74.5%IGI | 15.04ct | Oval | FANCY | VS1 | Excellent
From $5,809
Compare at $22,804
Save 13.9%IGI | 15.04ct | Oval | G | VVS2 | Very Good
From $5,811
Compare at $6,752
Save 69.2%IGI | 15.06ct | Oval | F | VS1 | Excellent
From $5,855
Compare at $18,996
Save 68.8%IGI | 15.08ct | Oval | F | VS1 | Excellent
From $5,966
Compare at $19,152
Save 76.9%IGI | 15.02ct | Oval | FANCY | VS1 | Very Good
From $6,014
Compare at $26,027
Save 67.4%IGI | 15.06ct | Oval | E | VS1 | Excellent
From $6,271
Compare at $19,243
Save 27.5%IGI | 15.05ct | Oval | E | VVS2 | Excellent
From $6,415
Compare at $8,848
Save 62.9%IGI | 15.05ct | Oval | G | VS2 | Ideal
From $6,434
Compare at $17,343
Save 63.4%IGI | 15ct | Oval | E | VS1 | Good
From $6,987
Compare at $19,075
Save 77.6%IGI | 15.03ct | Oval | E | VS2 | Good
From $7,071
Compare at $31,570
Save 78.5%IGI | 15.03ct | Oval | F | VVS2 | Excellent
From $7,102
Compare at $32,996
Save 77.9%IGI | 15.01ct | Oval | F | VS1 | Ideal
From $7,130
Compare at $32,270
Save 71.5%IGI | 15.04ct | Oval | FANCY | VS1 | Excellent
From $7,417
Compare at $26,061
Save 79%IGI | 15.06ct | Oval | FANCY | VS1 | Very Good
From $7,957
Compare at $37,839
Save 75.4%IGI | 15.02ct | Oval | G | VVS2 | Ideal
From $12,814
Compare at $52,053
Save 37.5%IGI | 15.01ct | Oval | F | VS1 | Ideal
From $15,161
Compare at $24,270
IGI | 15.01ct | Oval | I | VS2 | Ideal
From $15,335
Compare at $15,345
Save 31.2%IGI | 15.05ct | Oval | G | VS2 | Ideal
From $16,946
Compare at $24,640
Save 35.2%IGI | 15.06ct | Oval | G | VS1 | Ideal
From $17,751
Compare at $27,380
Save 47%IGI | 15.05ct | Oval | F | VVS2 | Ideal
From $18,564
Compare at $35,050
Save 47%IGI | 15.05ct | Oval | F | VVS2 | Ideal
From $18,564
Compare at $35,050
Save 40.7%IGI | 15.03ct | Oval | F | VS1 | Very Good
From $18,831
Compare at $31,780
Save 40.7%IGI | 15.04ct | Oval | F | VS1 | Ideal
From $18,855
Compare at $31,810
Save 40.7%IGI | 15.04ct | Oval | F | VS1 | Ideal
From $18,855
Compare at $31,810
Save 40.7%IGI | 15.06ct | Oval | F | VS1 | Excellent
From $18,902
Compare at $31,850
Save 40.6%IGI | 15.07ct | Oval | F | VS1 | Ideal
From $18,925
Compare at $31,870
Save 40.6%IGI | 15.08ct | Oval | F | VS1 | Ideal
From $18,949
Compare at $31,890
Save 47.9%IGI | 15.06ct | Oval | E | VVS2 | Good
From $20,387
Compare at $39,160
Save 35%IGI | 15.04ct | Oval | G | VVS2 | Ideal
From $20,470
Compare at $31,490
Save 35%IGI | 15.06ct | Oval | G | VVS2 | Ideal
From $20,488
Compare at $31,540
Save 35%IGI | 15.08ct | Oval | G | VVS2 | Ideal
From $20,540
Compare at $31,580
Save 34.6%IGI | 15.09ct | Oval | G | VVS2 | Ideal
From $20,663
Compare at $31,600
IGI | 15.04ct | Oval | F | VS2 | Ideal
From $26,415
Compare at $27,270
IGI | 15.03ct | Oval | F | VS2 | Ideal
From $26,460
Compare at $27,250
Entry pricing in this category starts around $3,255.
What to Know When Shopping for 15 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $80,619 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 $14,538 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.
- Oval diamonds can appear larger than rounds of the same carat weight due to their elongated face-up area. Watch for the bow-tie effect in lower-quality cuts.
Frequently Asked Questions
We currently track 50 comparable stones in this segment. Prices start around $3,255 and go up to $83,874.
Based on the latest market data, the average asking price is about $16,360 with a median around $14,538.
The observed spread is roughly $80,619 across tracked listings, which is about 96.1% 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 $16,360. The median price is $14,538, 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 5 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 $80,619 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 15 carat Oval diamonds.