3.1 Carat Oval Lab Grown Diamond Prices Comparison
As of May 2026, 3.1 carat oval lab grown diamonds usually range from $488 to $16,100, with an average price of $2,748.In the last month, prices for these diamonds are down 2.8%.Compare 407 verified listings across 12 retailers tracked by CaratRadar.
3.1 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 407 verified 3.1-carat oval lab grown diamonds listed across 12 online retailers. Prices in this segment range from $488 to $16,100, with an average asking price of $2,748 and a median of $1,988.
The price spread of $15,612 (97.0% 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.
407 diamonds tracked in this segment
Price range: $488 to $16,100
Average price: $2,748
Median price: $1,988
Available across 12 retailers
Savings potential: up to 97.0%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
407
$488
$2,748
$1,988
$16,100
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 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Very Good
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Very Good
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 59.8%IGI | 3.11ct | Oval | G | VS1 | Ideal
From $551
Compare at $1,370
Save 58.5%IGI | 3.14ct | Oval | G | VS1 | Very Good
From $582
Compare at $1,402
Save 52%IGI | 3.11ct | Oval | G | VS2 | Good
From $666
Compare at $1,388
Save 57.8%IGI | 3.18ct | Oval | F | VS1 | Very Good
From $675
Compare at $1,599
Save 53.3%IGI | 3.13ct | Oval | G | VVS2 | Very Good
From $675
Compare at $1,446
Save 56.6%IGI | 3.13ct | Oval | F | VS1 | Excellent
From $675
Compare at $1,556
Save 51.5%IGI | 3.13ct | Oval | D | VS1 | Very Good
From $680
Compare at $1,403
Save 57.5%IGI | 3.18ct | Oval | F | VS1 | Very Good
From $680
Compare at $1,601
Save 55.1%IGI | 3.12ct | Oval | E | VS2 | Ideal
From $680
Compare at $1,515
Save 57.3%IGI | 3.2ct | Oval | G | SI1 | Very Good
From $686
Compare at $1,607
Save 50.2%IGI | 3.12ct | Oval | G | VS1 | Very Good
From $690
Compare at $1,386
Save 48.4%IGI | 3.16ct | Oval | H | VS1 | Ideal
From $692
Compare at $1,341
Save 79.6%IGI | 3.17ct | Oval | G | VVS2 | Ideal
From $695
Compare at $3,400
IGI | 3.12ct | Oval | FANCY | VS1 | Very Good
From $697
Compare at $1,931
IGI | 3.13ct | Oval | FANCY | VS1 | Very Good
From $699
Compare at $1,938
Save 58.9%IGI | 3.2ct | Oval | E | VS1 | Very Good
From $700
Compare at $1,704
Save 47.5%IGI | 3.11ct | Oval | H | VVS2 | Very Good
From $701
Compare at $1,335
Save 47.5%IGI | 3.11ct | Oval | H | VVS2 | Ideal
From $701
Compare at $1,335
Save 51%IGI | 3.18ct | Oval | G | VS1 | Ideal
From $703
Compare at $1,436
Save 40.5%IGI | 3.11ct | Oval | G | VS1 | Excellent
From $704
Compare at $1,183
Save 51.2%IGI | 3.19ct | Oval | G | VS1 | Ideal
From $705
Compare at $1,445
Save 67.9%IGI | 3.12ct | Oval | H | SI1 | Ideal
From $711
Compare at $2,212
Save 78.6%IGI | 3.11ct | Oval | G | VVS2 | Excellent
From $715
Compare at $3,340
Save 55.5%IGI | 3.2ct | Oval | E | VS2 | Ideal
From $716
Compare at $1,608
Save 61%IGI | 3.17ct | Oval | D | VS1 | Very Good
From $717
Compare at $1,840
Save 55.2%IGI | 3.18ct | Oval | F | VS1 | Ideal
From $718
Compare at $1,603
Save 61.2%IGI | 3.18ct | Oval | D | VS1 | Very Good
From $718
Compare at $1,851
Save 72.4%IGI | 3.11ct | Oval | FANCY | VS1 | Very Good
From $729
Compare at $2,641
Save 63.1%IGI | 3.19ct | Oval | E | VVS2 | Very Good
From $729
Compare at $1,974
Save 60.6%IGI | 3.11ct | Oval | E | VVS2 | Very Good
From $729
Compare at $1,852
Save 44.6%IGI | 3.15ct | Oval | F | SI1 | Very Good
From $738
Compare at $1,331
Save 52.7%IGI | 3.16ct | Oval | H | VVS2 | Ideal
From $741
Compare at $1,567
Save 78.9%IGI | 3.15ct | Oval | F | VS2 | Very Good
From $746
Compare at $3,530
Save 56.4%IGI | 3.2ct | Oval | E | VS1 | Ideal
From $751
Compare at $1,721
Save 60.7%IGI | 3.16ct | Oval | E | VVS2 | Very Good
From $755
Compare at $1,919
Save 52.3%IGI | 3.16ct | Oval | F | VS1 | Excellent
From $755
Compare at $1,582
Entry pricing in this category starts around $488.
What to Know When Shopping for 3.1 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $15,612 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 $1,988 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 407 comparable stones in this segment. Prices start around $488 and go up to $16,100.
Based on the latest market data, the average asking price is about $2,748 with a median around $1,988.
The observed spread is roughly $15,612 across tracked listings, which is about 97.0% 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 $2,748. The median price is $1,988, 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 12 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 $15,612 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 3.1 carat Oval diamonds.