8.5 Carat Oval Lab Grown Diamond Prices Comparison
As of May 2026, 8.5 carat oval lab grown diamonds usually range from $1,374 to $24,475, with an average price of $5,953.In the last month, prices for these diamonds are down 3.3%.Compare 38 verified listings across 4 retailers tracked by CaratRadar.
8.5 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 38 verified 8.5-carat oval lab grown diamonds listed across 4 online retailers. Prices in this segment range from $1,374 to $24,475, with an average asking price of $5,953 and a median of $4,256.
The price spread of $23,101 (94.4% 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.
38 diamonds tracked in this segment
Price range: $1,374 to $24,475
Average price: $5,953
Median price: $4,256
Available across 4 retailers
Savings potential: up to 94.4%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
38
$1,374
$5,953
$4,256
$24,475
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 77.5%IGI | 8.5ct | Oval | G | VVS2 | Very Good
From $1,527
Compare at $6,798
Save 74%IGI | 8.58ct | Oval | F | VS1 | Excellent
From $1,624
Compare at $6,241
Save 73.6%IGI | 8.58ct | Oval | E | VS1 | Very Good
From $1,625
Compare at $6,146
Save 78.3%IGI | 8.51ct | Oval | F | VVS2 | Excellent
From $1,626
Compare at $7,505
Save 78.8%IGI | 8.55ct | Oval | F | VVS2 | Ideal
From $1,634
Compare at $7,695
Save 78%IGI | 8.5ct | Oval | F | VS1 | Excellent
From $1,680
Compare at $7,650
Save 79%IGI | 8.52ct | Oval | E | VS1 | Ideal
From $1,698
Compare at $8,093
Save 71.9%IGI | 8.53ct | Oval | F | VVS2 | Ideal
From $1,699
Compare at $6,043
Save 71.6%IGI | 8.59ct | Oval | F | VVS2 | Excellent
From $1,731
Compare at $6,094
Save 71.3%IGI | 8.51ct | Oval | E | VS1 | Very Good
From $1,858
Compare at $6,465
Save 71.3%IGI | 8.52ct | Oval | E | VS1 | Very Good
From $1,860
Compare at $6,475
Save 68.9%IGI | 8.56ct | Oval | F | VVS2 | Ideal
From $1,886
Compare at $6,070
Save 67.5%IGI | 8.58ct | Oval | E | VS1 | Excellent
From $2,003
Compare at $6,162
Save 66.2%IGI | 8.52ct | Oval | F | VVS2 | Excellent
From $2,055
Compare at $6,085
Save 68.5%IGI | 8.5ct | Oval | E | VVS2 | Very Good
From $2,090
Compare at $6,645
Save 67.3%IGI | 8.58ct | Oval | E | VS1 | Ideal
From $2,130
Compare at $6,520
Save 67.6%IGI | 8.59ct | Oval | E | VVS2 | Excellent
From $2,132
Compare at $6,590
Save 68.5%IGI | 8.5ct | Oval | E | VVS2 | Very Good
From $2,137
Compare at $6,781
Save 60.1%IGI | 8.53ct | Oval | G | VS1 | Very Good
From $2,314
Compare at $5,805
Save 29%IGI | 8.52ct | Oval | E | VS1 | Very Good
From $2,338
Compare at $3,294
Save 74.7%IGI | 8.53ct | Oval | F | VS1 | Very Good
From $2,430
Compare at $9,610
Save 74.7%IGI | 8.5ct | Oval | F | VVS2 | Very Good
From $2,464
Compare at $9,750
Save 61.6%IGI | 8.56ct | Oval | E | VVS2 | Very Good
From $2,582
Compare at $6,731
Save 55.4%IGI | 8.52ct | Oval | F | VVS2 | Very Good
From $2,696
Compare at $6,049
Save 54.7%IGI | 8.52ct | Oval | F | VVS2 | Very Good
From $2,741
Compare at $6,057
Save 54.8%IGI | 8.52ct | Oval | F | VVS2 | Ideal
From $2,741
Compare at $6,063
Save 54.8%IGI | 8.52ct | Oval | F | VVS2 | Excellent
From $2,741
Compare at $6,063
Save 69.3%IGI | 8.51ct | Oval | F | VS1 | Good
From $3,143
Compare at $10,245
Save 66.9%IGI | 8.51ct | Oval | FANCY | VS1 | Very Good
From $3,438
Compare at $10,391
Save 71.4%IGI | 8.51ct | Oval | F | VS2 | Very Good
From $3,742
Compare at $13,100
IGI | 8.52ct | Oval | FANCY | VS2 | Ideal
From $4,465
Compare at $13,290
GCAL | 8.59ct | Oval | F | VVS2 | Excellent
From $4,655
Compare at $5,060
Save 73%IGI | 8.56ct | Oval | E | VVS1 | Very Good
From $5,167
Compare at $19,168
Save 70.9%IGI | 8.55ct | Oval | D | VVS1 | Very Good
From $6,185
Compare at $21,228
Save 70.9%IGI | 8.56ct | Oval | D | VVS1 | Very Good
From $6,191
Compare at $21,275
Save 70.9%IGI | 8.56ct | Oval | D | VVS1 | Very Good
From $6,191
Compare at $21,275
Save 70.9%IGI | 8.56ct | Oval | D | VVS1 | Very Good
From $6,191
Compare at $21,275
Save 69.8%IGI | 8.52ct | Oval | D | VVS1 | Very Good
From $6,376
Compare at $21,087
Entry pricing in this category starts around $1,374.
What to Know When Shopping for 8.5 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $23,101 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 $4,256 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 38 comparable stones in this segment. Prices start around $1,374 and go up to $24,475.
Based on the latest market data, the average asking price is about $5,953 with a median around $4,256.
The observed spread is roughly $23,101 across tracked listings, which is about 94.4% 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 $5,953. The median price is $4,256, 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 4 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 $23,101 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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