20.1 Carat Oval Lab Grown Diamond Prices Comparison
As of March 2026, 20.1 carat oval lab grown diamonds usually range from $12,486 to $52,777, with an average price of $24,851.In the last month, prices for these diamonds are down 6.3%.Compare 11 verified listings across 2 retailers tracked by CaratRadar.
20.1 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 11 verified 20.1-carat oval lab grown diamonds listed across 2 online retailers. Prices in this segment range from $12,486 to $52,777, with an average asking price of $24,851 and a median of $24,538.
The price spread of $40,291 (76.3% 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.
11 diamonds tracked in this segment
Price range: $12,486 to $52,777
Average price: $24,851
Median price: $24,538
Available across 2 retailers
Savings potential: up to 76.3%
Price Range Overview
As of Mar 1, 2026Real market range for this carat, shape, and diamond type.
11
$12,486
$24,851
$24,538
$52,777
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 51.4%20.06ct | Oval | F | VVS2 | Good
From $18,205
Compare at $37,451
IGISave 61.9%20.07ct | Oval | E | VS2 | Excellent
From $17,412
Compare at $45,660
20.07ct | Oval | E | VVS2 | Ideal
From $52,777
Compare at $62,930
20.07ct | Oval | G | VS1 | Ideal
From $18,700
Compare at $39,790
IGISave 36.9%20.09ct | Oval | F | VS1 | Ideal
From $30,744
Compare at $48,700
IGISave 72%20.09ct | Oval | F | VS1 | Ideal
From $24,538
Compare at $87,570
IGISave 72%20.1ct | Oval | F | VS1 | Ideal
From $24,550
Compare at $87,610
IGISave 58.9%20.1ct | Oval | G | SI1 | Ideal
From $12,486
Compare at $30,400
IGISave 40.7%20.1ct | Oval | F | VS1 | Ideal
From $30,281
Compare at $51,090
IGISave 41.7%20.14ct | Oval | E | VS2 | Ideal
From $28,129
Compare at $48,280
IGISave 66.1%20.14ct | Oval | E | VS2 | Ideal
From $15,542
Compare at $45,820
Entry pricing in this category starts around $12,486.
What to Know When Shopping for 20.1 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $40,291 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 $24,538 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 11 comparable stones in this segment. Prices start around $12,486 and go up to $52,777.
Based on the latest market data, the average asking price is about $24,851 with a median around $24,538.
The observed spread is roughly $40,291 across tracked listings, which is about 76.3% 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 $24,538, 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 2 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 $40,291 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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