3.8 Carat Oval Lab Grown Diamond Prices Comparison
As of July 2026, 3.8 carat oval lab grown diamonds usually range from $538 to $25,344, with an average price of $3,551.In the last month, prices for these diamonds are down 3.8%.Compare 782 verified listings across 10 retailers tracked by CaratRadar.
3.8 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 782 verified 3.8-carat oval lab grown diamonds listed across 10 online retailers. Prices in this segment range from $538 to $25,344, with an average asking price of $3,551 and a median of $2,456.
The price spread of $24,806 (97.9% 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.
782 diamonds tracked in this segment
Price range: $538 to $25,344
Average price: $3,551
Median price: $2,456
Available across 10 retailers
Savings potential: up to 97.9%
Price Range Overview
As of Jul 13, 2026Real market range for this carat, shape, and diamond type.
782
$538
$3,551
$2,456
$25,344
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGI | 3.88ct | Oval | H | VS1 | Very Good
From $574
Compare at $612
IGI | 3.81ct | Oval | G | VS1 | Very Good
From $575
Compare at $615
IGI | 3.81ct | Oval | G | VS1 | Very Good
From $575
Compare at $615
IGI | 3.83ct | Oval | G | VS1 | Very Good
From $579
Compare at $618
IGI | 3.83ct | Oval | G | VS1 | Very Good
From $579
Compare at $618
IGI | 3.84ct | Oval | G | VS1 | Very Good
From $580
Compare at $619
IGI | 3.85ct | Oval | G | VS1 | Very Good
From $582
Compare at $620
IGI | 3.81ct | Oval | G | VS1 | Very Good
From $582
Compare at $620
IGI | 3.86ct | Oval | G | VS1 | Excellent
From $583
Compare at $622
IGI | 3.82ct | Oval | G | VS1 | Ideal
From $583
Compare at $622
IGI | 3.83ct | Oval | G | VS1 | Very Good
From $585
Compare at $624
IGI | 3.83ct | Oval | G | VS1 | Ideal
From $585
Compare at $624
IGI | 3.88ct | Oval | G | VS1 | Very Good
From $587
Compare at $626
IGI | 3.85ct | Oval | G | VS1 | Very Good
From $588
Compare at $627
IGI | 3.86ct | Oval | G | VS1 | Excellent
From $589
Compare at $629
IGI | 3.86ct | Oval | G | VS1 | Very Good
From $589
Compare at $629
IGI | 3.86ct | Oval | G | VS1 | Very Good
From $589
Compare at $629
IGI | 3.87ct | Oval | G | VS1 | Very Good
From $591
Compare at $631
IGI | 3.88ct | Oval | G | VS1 | Very Good
From $592
Compare at $632
IGI | 3.88ct | Oval | G | VS1 | Very Good
From $592
Compare at $632
IGI | 3.88ct | Oval | G | VS1 | Very Good
From $592
Compare at $638
Save 68.3%IGI | 3.86ct | Oval | G | VS2 | Very Good
From $603
Compare at $1,904
Save 67.5%IGI | 3.8ct | Oval | G | VS1 | Very Good
From $605
Compare at $1,863
Save 67.6%IGI | 3.8ct | Oval | G | VS1 | Excellent
From $605
Compare at $1,865
IGI | 3.87ct | Oval | H | VVS2 | Ideal
From $606
Compare at $646
Save 67.6%IGI | 3.81ct | Oval | G | VS1 | Ideal
From $607
Compare at $1,872
Save 67.6%IGI | 3.81ct | Oval | G | VS1 | Excellent
From $607
Compare at $1,872
Save 67.6%IGI | 3.81ct | Oval | G | VS1 | Very Good
From $607
Compare at $1,872
Save 67.7%IGI | 3.82ct | Oval | G | VS1 | Very Good
From $608
Compare at $1,882
IGI | 3.82ct | Oval | G | VVS2 | Excellent
From $610
Compare at $650
Save 67.7%IGI | 3.83ct | Oval | G | VS1 | Very Good
From $610
Compare at $1,891
Save 67.7%IGI | 3.83ct | Oval | G | VS1 | Excellent
From $610
Compare at $1,891
Save 67.7%IGI | 3.83ct | Oval | G | VS1 | Excellent
From $610
Compare at $1,891
Save 67.9%IGI | 3.84ct | Oval | G | VS1 | Excellent
From $611
Compare at $1,901
Save 67.2%IGI | 3.8ct | Oval | G | VS1 | Excellent
From $611
Compare at $1,865
Save 67.2%IGI | 3.8ct | Oval | G | VS1 | Excellent
From $611
Compare at $1,865
Save 67.2%IGI | 3.8ct | Oval | G | VS1 | Ideal
From $611
Compare at $1,865
Save 67.9%IGI | 3.84ct | Oval | G | VS1 | Very Good
From $611
Compare at $1,901
Save 67.9%IGI | 3.84ct | Oval | G | VS1 | Excellent
From $611
Compare at $1,901
Save 67.9%IGI | 3.84ct | Oval | G | VS1 | Excellent
From $611
Compare at $1,901
Save 67.9%IGI | 3.85ct | Oval | G | VS1 | Excellent
From $613
Compare at $1,910
Save 67.9%IGI | 3.85ct | Oval | G | VS1 | Excellent
From $613
Compare at $1,910
Save 67.9%IGI | 3.85ct | Oval | G | VS1 | Excellent
From $613
Compare at $1,910
Save 67.3%IGI | 3.81ct | Oval | G | VS1 | Excellent
From $613
Compare at $1,874
Save 67.3%IGI | 3.81ct | Oval | G | VS1 | Very Good
From $613
Compare at $1,874
Save 67.9%IGI | 3.85ct | Oval | G | VS1 | Very Good
From $613
Compare at $1,910
Save 67.9%IGI | 3.85ct | Oval | G | VS1 | Very Good
From $613
Compare at $1,910
Save 67.9%IGI | 3.85ct | Oval | G | VS1 | Very Good
From $613
Compare at $1,910
Save 67.3%IGI | 3.81ct | Oval | G | VS1 | Very Good
From $613
Compare at $1,874
Save 67.4%IGI | 3.82ct | Oval | G | VS1 | Very Good
From $615
Compare at $1,884
Entry pricing in this category starts around $538.
What to Know When Shopping for 3.8 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $24,806 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 $2,456 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 782 comparable stones in this segment. Prices start around $538 and go up to $25,344.
Based on the latest market data, the average asking price is about $3,551 with a median around $2,456.
The observed spread is roughly $24,806 across tracked listings, which is about 97.9% 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 $3,551. The median price is $2,456, 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 10 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 $24,806 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 3.8 carat Oval diamonds.