3.9 Carat Oval Lab Grown Diamond Prices Comparison
As of February 2026, 3.9 carat oval lab grown diamonds usually range from $767 to $17,320, with an average price of $1,978.In the last month, prices for these diamonds are down 4.1%.Compare 374 verified listings across 8 retailers tracked by CaratRadar.
3.9 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 374 verified 3.9-carat oval lab grown diamonds listed across 8 online retailers. Prices in this segment range from $767 to $17,320, with an average asking price of $1,978 and a median of $1,214.
The price spread of $16,553 (95.6% 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.
374 diamonds tracked in this segment
Price range: $767 to $17,320
Average price: $1,978
Median price: $1,214
Available across 8 retailers
Savings potential: up to 95.6%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
374
$767
$1,978
$1,214
$17,320
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 75.6%3.86ct | Oval | F | VS2 | Ideal
From $1,303
Compare at $5,340
IGISave 87.4%3.86ct | Oval | G | VS1 | Ideal
From $964
Compare at $7,640
GIASave 47.6%3.86ct | Oval | D | VVS2 | Excellent
From $4,058
Compare at $7,748
GIASave 74.5%3.86ct | Oval | F | VS1 | Excellent
From $2,749
Compare at $10,770
IGISave 74.6%3.86ct | Oval | G | VS1 | Very Good
From $1,214
Compare at $4,770
IGISave 85.6%3.86ct | Oval | E | SI1 | Ideal
From $999
Compare at $6,930
IGISave 65.6%3.86ct | Oval | E | VS2 | Ideal
From $1,075
Compare at $3,125
IGISave 90.1%3.86ct | Oval | E | VS1 | Ideal
From $954
Compare at $9,640
IGISave 20.2%3.86ct | Oval | E | VS1 | Excellent
From $948
Compare at $1,189
IGISave 85.7%3.86ct | Oval | E | VS1 | Ideal
From $1,097
Compare at $7,650
IGISave 63.4%3.86ct | Oval | E | VS2 | Excellent
From $1,102
Compare at $3,010
IGISave 19.5%3.86ct | Oval | F | VS1 | Excellent
From $917
Compare at $1,139
IGISave 60.3%3.86ct | Oval | E | VS2 | Ideal
From $1,096
Compare at $2,757
IGISave 17.9%3.86ct | Oval | E | VVS1 | Very Good
From $3,267
Compare at $3,980
IGISave 84.9%3.86ct | Oval | G | VS1 | Ideal
From $1,152
Compare at $7,640
IGISave 64.7%3.86ct | Oval | H | VS1 | Ideal
From $1,537
Compare at $4,350
IGISave 74.6%3.86ct | Oval | G | VS1 | Very Good
From $1,214
Compare at $4,770
IGISave 74.6%3.86ct | Oval | G | VS1 | Very Good
From $1,214
Compare at $4,770
IGISave 84.8%3.86ct | Oval | E | VS1 | Ideal
From $1,470
Compare at $9,640
IGISave 76.2%3.86ct | Oval | D | VS1 | Very Good
From $1,480
Compare at $6,220
IGISave 20.4%3.86ct | Oval | E | VS1 | Excellent
From $956
Compare at $1,201
GCALSave 65.3%3.86ct | Oval | D | VVS2 | Ideal
From $4,862
Compare at $14,030
IGISave 84%3.86ct | Oval | E | VS1 | Very Good
From $1,226
Compare at $7,650
IGISave 58.4%3.86ct | Oval | D | VVS1 | Ideal
From $2,950
Compare at $7,100
IGISave 75.6%3.86ct | Oval | E | SI1 | Very Good
From $1,849
Compare at $7,580
IGISave 75.7%3.86ct | Oval | F | VS1 | Excellent
From $1,166
Compare at $4,790
IGISave 65.6%3.86ct | Oval | E | VS1 | Very Good
From $1,102
Compare at $3,200
IGISave 77.6%3.86ct | Oval | D | VS2 | Very Good
From $1,872
Compare at $8,350
IGISave 75.3%3.86ct | Oval | F | VVS2 | Very Good
From $1,387
Compare at $5,620
IGISave 62%3.86ct | Oval | E | VS1 | Excellent
From $1,217
Compare at $3,200
IGISave 47%3.86ct | Oval | E | VS1 | Excellent
From $1,170
Compare at $2,207
IGISave 59.2%3.86ct | Oval | F | VVS2 | Very Good
From $1,237
Compare at $3,032
IGISave 19%3.86ct | Oval | H | VS1 | Excellent
From $926
Compare at $1,143
IGISave 76.2%3.86ct | Oval | D | VS1 | Ideal
From $1,480
Compare at $6,220
IGISave 87.5%3.86ct | Oval | E | VS1 | Excellent
From $1,204
Compare at $9,640
IGISave 49%3.86ct | Oval | D | VS1 | Very Good
From $1,254
Compare at $2,459
GCALSave 62.8%3.86ct | Oval | E | VVS1 | Ideal
From $4,811
Compare at $12,950
IGISave 83.7%3.86ct | Oval | H | VS1 | Ideal
From $948
Compare at $5,800
IGISave 66.2%3.86ct | Oval | F | VS1 | Ideal
From $1,409
Compare at $4,164
IGISave 85.5%3.86ct | Oval | F | VS2 | Excellent
From $902
Compare at $6,230
IGISave 61.1%3.86ct | Oval | F | VS1 | Excellent
From $965
Compare at $2,481
IGISave 20.4%3.86ct | Oval | E | VS1 | Excellent
From $956
Compare at $1,201
IGISave 20.6%3.86ct | Oval | D | VS1 | Excellent
From $1,034
Compare at $1,302
IGISave 81.9%3.86ct | Oval | E | VS1 | Very Good
From $1,748
Compare at $9,640
GIASave 84.8%3.87ct | Oval | H | VS1 | Excellent
From $1,375
Compare at $9,020
IGISave 74.5%3.87ct | Oval | G | VS1 | Very Good
From $1,217
Compare at $4,780
IGISave 74.5%3.87ct | Oval | G | VVS2 | Very Good
From $1,267
Compare at $4,970
IGISave 79.9%3.87ct | Oval | D | VS1 | Very Good
From $1,483
Compare at $7,370
IGISave 88.7%3.87ct | Oval | E | VS1 | Ideal
From $1,100
Compare at $9,730
IGISave 85%3.87ct | Oval | F | VVS2 | Excellent
From $1,236
Compare at $8,234
Entry pricing in this category starts around $767.
What to Know When Shopping for 3.9 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $16,553 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 $1,214 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 374 comparable stones in this segment. Prices start around $767 and go up to $17,320.
Based on the latest market data, the average asking price is about $1,978 with a median around $1,214.
The observed spread is roughly $16,553 across tracked listings, which is about 95.6% 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 $1,214, 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 8 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 $16,553 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 3.9 carat Oval diamonds.