3.8 Carat Oval Lab Grown Diamond Prices Comparison
As of May 2026, 3.8 carat oval lab grown diamonds usually range from $566 to $27,410, with an average price of $3,900.In the last month, prices for these diamonds are down 6.7%.Compare 320 verified listings across 9 retailers tracked by CaratRadar.
3.8 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 320 verified 3.8-carat oval lab grown diamonds listed across 9 online retailers. Prices in this segment range from $566 to $27,410, with an average asking price of $3,900 and a median of $2,718.
The price spread of $26,844 (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.
320 diamonds tracked in this segment
Price range: $566 to $27,410
Average price: $3,900
Median price: $2,718
Available across 9 retailers
Savings potential: up to 97.9%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
320
$566
$3,900
$2,718
$27,410
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 24.3%IGI | 3.84ct | Oval | H | VVS2 | Excellent
From $609
Compare at $804
Save 64.5%IGI | 3.81ct | Oval | G | VS1 | Ideal
From $664
Compare at $1,870
Save 49.9%IGI | 3.82ct | Oval | G | VVS2 | Ideal
From $715
Compare at $1,428
Save 44.2%IGI | 3.81ct | Oval | G | SI1 | Ideal
From $734
Compare at $1,315
Save 64.2%IGI | 3.83ct | Oval | E | VS2 | Ideal
From $742
Compare at $2,070
Save 75.4%IGI | 3.88ct | Oval | F | VS1 | Ideal
From $754
Compare at $3,065
Save 75.4%IGI | 3.89ct | Oval | F | VS1 | Ideal
From $756
Compare at $3,070
Save 64.6%IGI | 3.87ct | Oval | F | VS1 | Very Good
From $757
Compare at $2,137
Save 75.4%IGI | 3.81ct | Oval | E | VS2 | Ideal
From $760
Compare at $3,085
Save 63.9%IGI | 3.81ct | Oval | F | VS1 | Very Good
From $762
Compare at $2,110
Save 63.9%IGI | 3.82ct | Oval | F | VS1 | Very Good
From $764
Compare at $2,115
Save 75.8%IGI | 3.81ct | Oval | E | VS1 | Very Good
From $766
Compare at $3,160
Save 63.9%IGI | 3.84ct | Oval | F | VS1 | Excellent
From $768
Compare at $2,126
Save 63.9%IGI | 3.84ct | Oval | F | VS1 | Very Good
From $768
Compare at $2,126
Save 65.5%IGI | 3.81ct | Oval | F | VVS2 | Very Good
From $772
Compare at $2,239
Save 65.5%IGI | 3.81ct | Oval | F | VVS2 | Very Good
From $772
Compare at $2,239
Save 63.9%IGI | 3.87ct | Oval | F | VS1 | Very Good
From $774
Compare at $2,143
Save 76.6%IGI | 3.85ct | Oval | E | VS1 | Excellent
From $774
Compare at $3,310
Save 76.6%IGI | 3.86ct | Oval | E | VS1 | Excellent
From $776
Compare at $3,315
Save 76.6%IGI | 3.86ct | Oval | E | VS1 | Ideal
From $776
Compare at $3,315
Save 70.5%IGI | 3.82ct | Oval | G | VS1 | Excellent
From $779
Compare at $2,638
Save 65.9%IGI | 3.85ct | Oval | F | VVS2 | Very Good
From $779
Compare at $2,284
Save 79.5%IGI | 3.88ct | Oval | F | VVS2 | Excellent
From $780
Compare at $3,800
Save 66%IGI | 3.86ct | Oval | F | VVS2 | Excellent
From $781
Compare at $2,295
Save 66.1%IGI | 3.87ct | Oval | F | VVS2 | Excellent
From $783
Compare at $2,307
Save 66.1%IGI | 3.88ct | Oval | F | VVS2 | Very Good
From $785
Compare at $2,318
Save 64.7%IGI | 3.8ct | Oval | E | VS1 | Excellent
From $785
Compare at $2,224
Save 76.4%IGI | 3.87ct | Oval | E | VS1 | Ideal
From $786
Compare at $3,325
Save 64.8%IGI | 3.81ct | Oval | E | VS1 | Ideal
From $787
Compare at $2,235
Save 66.2%IGI | 3.89ct | Oval | F | VVS2 | Excellent
From $787
Compare at $2,329
Save 65.5%IGI | 3.86ct | Oval | E | VS1 | Excellent
From $789
Compare at $2,289
Save 64.9%IGI | 3.82ct | Oval | E | VS1 | Very Good
From $789
Compare at $2,247
Save 70.5%IGI | 3.87ct | Oval | G | VS1 | Very Good
From $789
Compare at $2,672
Save 65.7%IGI | 3.87ct | Oval | E | VS1 | Excellent
From $790
Compare at $2,300
Save 65.7%IGI | 3.87ct | Oval | E | VS1 | Excellent
From $790
Compare at $2,300
Save 65.8%IGI | 3.87ct | Oval | F | VVS2 | Excellent
From $790
Compare at $2,307
Save 65%IGI | 3.83ct | Oval | E | VS1 | Excellent
From $790
Compare at $2,258
Save 65%IGI | 3.83ct | Oval | E | VS1 | Ideal
From $790
Compare at $2,258
Save 65%IGI | 3.83ct | Oval | E | VS1 | Very Good
From $790
Compare at $2,258
Save 64.8%IGI | 3.82ct | Oval | E | VS1 | Ideal
From $790
Compare at $2,247
Save 65%IGI | 3.83ct | Oval | E | VS1 | Ideal
From $791
Compare at $2,258
Save 70.5%IGI | 3.89ct | Oval | G | VS1 | Excellent
From $793
Compare at $2,686
Save 65.1%IGI | 3.84ct | Oval | E | VS1 | Very Good
From $793
Compare at $2,269
Save 64.3%IGI | 3.8ct | Oval | E | VS1 | Excellent
From $794
Compare at $2,226
Save 65.1%IGI | 3.85ct | Oval | E | VS1 | Excellent
From $795
Compare at $2,280
Save 65.3%IGI | 3.86ct | Oval | E | VS1 | Excellent
From $795
Compare at $2,292
Save 65.3%IGI | 3.86ct | Oval | E | VS1 | Excellent
From $795
Compare at $2,292
Save 65.1%IGI | 3.85ct | Oval | E | VS1 | Ideal
From $795
Compare at $2,280
Save 65.1%IGI | 3.85ct | Oval | E | VS1 | Ideal
From $795
Compare at $2,280
Save 54.7%IGI | 3.81ct | Oval | E | VS1 | Ideal
From $795
Compare at $1,754
Entry pricing in this category starts around $566.
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 $26,844 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 $2,718 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 320 comparable stones in this segment. Prices start around $566 and go up to $27,410.
Based on the latest market data, the average asking price is about $3,900 with a median around $2,718.
The observed spread is roughly $26,844 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 $3,900. The median price is $2,718, 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 9 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 $26,844 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.