3.8 Carat Oval Lab Grown Diamond Prices Comparison
As of April 2026, 3.8 carat oval lab grown diamonds usually range from $645 to $25,419, with an average price of $4,349.In the last month, prices for these diamonds are down 0.7%.Compare 502 verified listings across 10 retailers tracked by CaratRadar.
3.8 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 502 verified 3.8-carat oval lab grown diamonds listed across 10 online retailers. Prices in this segment range from $645 to $25,419, with an average asking price of $4,349 and a median of $3,207.
The price spread of $24,774 (97.5% 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.
502 diamonds tracked in this segment
Price range: $645 to $25,419
Average price: $4,349
Median price: $3,207
Available across 10 retailers
Savings potential: up to 97.5%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
502
$645
$4,349
$3,207
$25,419
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%GCAL | 3.8ct | Oval | E | VS1 | Excellent
From $1,737
Compare at $7,850
Save 74.4%GIA | 3.8ct | Oval | E | VVS2 | Excellent
From $2,500
Compare at $9,780
Save 60.7%GIA | 3.8ct | Oval | D | IF | Excellent
From $13,250
Compare at $33,710
Save 33%IGI | 3.8ct | Oval | G | VS1 | Ideal
From $2,632
Compare at $3,927
Save 46%IGI | 3.8ct | Oval | H | VS2 | Ideal
From $1,384
Compare at $2,565
Save 17.9%IGI | 3.8ct | Oval | I | VS1 | Ideal
From $3,918
Compare at $4,770
Save 38.2%IGI | 3.8ct | Oval | H | VS1 | Ideal
From $1,477
Compare at $2,390
Save 46%IGI | 3.8ct | Oval | H | VS2 | Ideal
From $1,384
Compare at $2,565
Save 75.3%IGI | 3.8ct | Oval | E | SI1 | Ideal
From $1,188
Compare at $4,820
Save 67.5%IGI | 3.8ct | Oval | G | VS2 | Ideal
From $1,456
Compare at $4,480
Save 83.7%IGI | 3.8ct | Oval | G | VS1 | Ideal
From $1,134
Compare at $6,950
Save 73.9%IGI | 3.8ct | Oval | F | VS1 | Excellent
From $1,887
Compare at $7,230
Save 78.2%IGI | 3.8ct | Oval | D | IF | Excellent
From $4,425
Compare at $20,280
Save 78.5%IGI | 3.8ct | Oval | D | VS2 | Ideal
From $1,134
Compare at $5,280
Save 51.3%IGI | 3.8ct | Oval | H | VS1 | Ideal
From $1,755
Compare at $3,602
Save 74.6%IGI | 3.8ct | Oval | F | VS2 | Ideal
From $1,158
Compare at $4,560
Save 77.5%IGI | 3.8ct | Oval | F | VS1 | Excellent
From $1,270
Compare at $5,640
Save 86%IGI | 3.8ct | Oval | F | VS1 | Very Good
From $1,109
Compare at $7,920
Save 77.9%IGI | 3.8ct | Oval | D | VS1 | Excellent
From $2,342
Compare at $10,610
Save 79.9%IGI | 3.8ct | Oval | E | VS1 | Ideal
From $1,921
Compare at $9,560
Save 76.1%IGI | 3.8ct | Oval | D | VVS2 | Ideal
From $2,613
Compare at $10,930
IGI | 3.8ct | Oval | E | VS1 | Very Good
From $2,049
Compare at $2,050
Save 30%IGI | 3.8ct | Oval | D | VS1 | Excellent
From $1,456
Compare at $2,079
Save 73.7%IGI | 3.8ct | Oval | D | VVS1 | Ideal
From $3,805
Compare at $14,470
Save 41%IGI | 3.8ct | Oval | E | VVS1 | Very Good
From $3,134
Compare at $5,312
Save 79.9%IGI | 3.8ct | Oval | E | IF | Excellent
From $3,982
Compare at $19,770
Save 72.8%IGI | 3.8ct | Oval | F | VS2 | Very Good
From $1,097
Compare at $4,040
Save 72.1%IGI | 3.8ct | Oval | D | VVS2 | Excellent
From $3,021
Compare at $10,820
Save 80.7%IGI | 3.8ct | Oval | G | VS1 | Ideal
From $992
Compare at $5,130
Save 75.1%IGI | 3.8ct | Oval | F | VVS2 | Very Good
From $1,786
Compare at $7,170
Save 56%IGI | 3.8ct | Oval | F | VS1 | Very Good
From $1,487
Compare at $3,377
Save 31%IGI | 3.8ct | Oval | E | VS1 | Excellent
From $1,186
Compare at $1,718
Save 79.6%IGI | 3.8ct | Oval | G | VS1 | Excellent
From $992
Compare at $4,860
Save 69.2%IGI | 3.8ct | Oval | D | IF | Good
From $3,998
Compare at $12,964
Save 31.5%IGI | 3.8ct | Oval | E | VS1 | Excellent
From $1,152
Compare at $1,683
Save 41%IGI | 3.8ct | Oval | E | VVS1 | Very Good
From $3,134
Compare at $5,312
Save 58.7%IGI | 3.8ct | Oval | D | VVS1 | Very Good
From $3,848
Compare at $9,310
Save 43.1%IGI | 3.8ct | Oval | D | VVS2 | Very Good
From $1,990
Compare at $3,496
Save 41%IGI | 3.8ct | Oval | E | VVS1 | Very Good
From $3,134
Compare at $5,312
Save 73.9%IGI | 3.8ct | Oval | F | VVS2 | Ideal
From $1,396
Compare at $5,358
Save 63.2%IGI | 3.8ct | Oval | E | VVS1 | Very Good
From $3,340
Compare at $9,070
Save 75.6%IGI | 3.8ct | Oval | E | VS2 | Excellent
From $1,111
Compare at $4,560
Save 41.9%IGI | 3.8ct | Oval | D | VVS2 | Very Good
From $1,595
Compare at $2,745
Save 81.5%IGI | 3.8ct | Oval | F | VS1 | Excellent
From $1,295
Compare at $7,009
Save 79.7%IGI | 3.8ct | Oval | D | VVS2 | Excellent
From $1,755
Compare at $8,633
Save 23.2%IGI | 3.8ct | Oval | D | FL | Excellent
From $19,623
Compare at $25,560
Save 25.4%IGI | 3.8ct | Oval | E | VS1 | Very Good
From $1,185
Compare at $1,589
Save 31.9%IGI | 3.8ct | Oval | E | VVS2 | Very Good
From $1,206
Compare at $1,771
Save 13.3%IGI | 3.8ct | Oval | D | VS1 | Good
From $3,826
Compare at $4,414
Save 66.3%IGI | 3.8ct | Oval | F | VS1 | Very Good
From $820
Compare at $2,433
Entry pricing in this category starts around $645.
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 $24,774 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 $3,207 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 502 comparable stones in this segment. Prices start around $645 and go up to $25,419.
Based on the latest market data, the average asking price is about $4,349 with a median around $3,207.
The observed spread is roughly $24,774 across tracked listings, which is about 97.5% 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 $3,207, 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 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 $24,774 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.