12 Carat Oval Lab Grown Diamond Prices Comparison
As of April 2026, 12 carat oval lab grown diamonds usually range from $2,640 to $69,747, with an average price of $12,797.In the last month, prices for these diamonds are down 6.1%.Compare 76 verified listings across 5 retailers tracked by CaratRadar.
12 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 76 verified 12-carat oval lab grown diamonds listed across 5 online retailers. Prices in this segment range from $2,640 to $69,747, with an average asking price of $12,797 and a median of $9,502.
The price spread of $67,107 (96.2% 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.
76 diamonds tracked in this segment
Price range: $2,640 to $69,747
Average price: $12,797
Median price: $9,502
Available across 5 retailers
Savings potential: up to 96.2%
Price Range Overview
As of Apr 17, 2026Real market range for this carat, shape, and diamond type.
76
$2,640
$12,797
$9,502
$69,747
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 81.2%IGI | 12ct | Oval | H | VVS2 | Ideal
From $3,730
Compare at $19,810
Save 54.3%IGI | 12ct | Oval | E | VVS2 | Ideal
From $4,585
Compare at $10,024
Save 45.9%IGI | 12.01ct | Oval | E | VVS2 | Ideal
From $7,027
Compare at $12,979
Save 49.6%IGI | 12.01ct | Oval | F | VVS1 | Ideal
From $7,027
Compare at $13,940
Save 51%IGI | 12.01ct | Oval | F | VS1 | Ideal
From $4,061
Compare at $8,284
Save 58.1%IGI | 12.01ct | Oval | E | VVS2 | Excellent
From $6,779
Compare at $16,195
Save 85.7%IGI | 12.01ct | Oval | E | VS1 | Excellent
From $4,372
Compare at $30,670
Save 68.3%IGI | 12.01ct | Oval | E | VVS2 | Ideal
From $9,895
Compare at $31,240
Save 80.3%IGI | 12.02ct | Oval | G | VS2 | Ideal
From $3,870
Compare at $19,690
Save 69.2%IGI | 12.02ct | Oval | E | VS1 | Ideal
From $9,467
Compare at $30,690
Save 51.1%IGI | 12.02ct | Oval | E | VS1 | Excellent
From $4,418
Compare at $9,033
Save 85.4%IGI | 12.02ct | Oval | F | VVS2 | Very Good
From $4,082
Compare at $28,010
Save 78.4%IGI | 12.02ct | Oval | E | VVS2 | Excellent
From $6,760
Compare at $31,270
Save 78%IGI | 12.03ct | Oval | F | VS1 | Ideal
From $9,045
Compare at $41,180
Save 83.9%IGI | 12.03ct | Oval | F | VS1 | Very Good
From $4,099
Compare at $25,450
Save 63.4%IGI | 12.03ct | Oval | F | VS1 | Excellent
From $3,030
Compare at $8,276
Save 86%IGI | 12.03ct | Oval | E | VVS2 | Ideal
From $4,388
Compare at $31,290
Save 85.5%IGI | 12.03ct | Oval | E | VS1 | Ideal
From $4,448
Compare at $30,720
Save 79.4%IGI | 12.03ct | Oval | E | VVS2 | Very Good
From $6,444
Compare at $31,290
Save 85.4%IGI | 12.03ct | Oval | F | VVS2 | Ideal
From $4,086
Compare at $28,030
Save 84.6%IGI | 12.03ct | Oval | F | VS1 | Ideal
From $3,921
Compare at $25,450
Save 85.5%IGI | 12.03ct | Oval | F | VVS2 | Ideal
From $4,068
Compare at $28,030
Save 56.8%IGI | 12.04ct | Oval | H | SI1 | Ideal
From $6,751
Compare at $15,610
Save 40.6%IGI | 12.04ct | Oval | D | VVS1 | Ideal
From $28,973
Compare at $48,795
Save 84.8%IGI | 12.04ct | Oval | F | VS1 | Ideal
From $3,878
Compare at $25,470
Save 63.4%IGI | 12.04ct | Oval | F | VVS2 | Good
From $3,065
Compare at $8,372
Save 74.2%IGI | 12.04ct | Oval | F | VVS2 | Ideal
From $5,195
Compare at $20,150
Save 85.4%IGI | 12.04ct | Oval | F | VVS2 | Ideal
From $4,089
Compare at $28,050
Save 85.5%IGI | 12.04ct | Oval | F | VVS2 | Ideal
From $4,071
Compare at $28,050
Save 77.3%IGI | 12.04ct | Oval | F | VVS1 | Ideal
From $10,193
Compare at $44,942
Save 85.6%IGI | 12.04ct | Oval | F | VVS2 | Ideal
From $4,031
Compare at $28,050
Save 70.6%IGI | 12.05ct | Oval | F | SI1 | Ideal
From $5,549
Compare at $18,870
Save 78%IGI | 12.05ct | Oval | F | VS1 | Excellent
From $8,877
Compare at $40,420
Save 84.6%IGI | 12.05ct | Oval | G | VVS2 | Ideal
From $3,875
Compare at $25,240
Save 81.3%IGI | 12.05ct | Oval | E | VVS2 | Ideal
From $5,870
Compare at $31,350
Save 78%IGI | 12.05ct | Oval | F | VS1 | Ideal
From $8,826
Compare at $40,180
Save 48.6%IGI | 12.05ct | Oval | E | VVS2 | Ideal
From $6,454
Compare at $12,549
Save 48.6%IGI | 12.05ct | Oval | H | VVS2 | Excellent
From $3,812
Compare at $7,415
Save 84.6%IGI | 12.05ct | Oval | F | VS1 | Ideal
From $3,927
Compare at $25,490
Save 79.4%IGI | 12.05ct | Oval | E | VVS2 | Very Good
From $6,454
Compare at $31,350
Save 79.1%IGI | 12.05ct | Oval | F | VVS2 | Very Good
From $5,862
Compare at $28,080
Save 77.9%IGI | 12.06ct | Oval | E | VVS2 | Ideal
From $6,929
Compare at $31,370
Save 84.7%IGI | 12.06ct | Oval | F | VS1 | Ideal
From $3,903
Compare at $25,510
Save 63.4%IGI | 12.06ct | Oval | F | VVS2 | Ideal
From $3,070
Compare at $8,386
Save 85.6%IGI | 12.06ct | Oval | F | VVS2 | Ideal
From $4,060
Compare at $28,100
Save 85%IGI | 12.06ct | Oval | F | VVS2 | Ideal
From $4,217
Compare at $28,100
Save 84.1%IGI | 12.06ct | Oval | F | VS1 | Ideal
From $4,065
Compare at $25,510
Save 27.1%IGI | 12.06ct | Oval | D | VS1 | Good
From $18,586
Compare at $25,490
Save 78%IGI | 12.06ct | Oval | F | VVS2 | Ideal
From $3,040
Compare at $13,809
Save 77.7%IGI | 12.06ct | Oval | F | VVS2 | Excellent
From $3,085
Compare at $13,809
Entry pricing in this category starts around $2,640.
What to Know When Shopping for 12 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $67,107 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 $9,502 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 76 comparable stones in this segment. Prices start around $2,640 and go up to $69,747.
Based on the latest market data, the average asking price is about $12,797 with a median around $9,502.
The observed spread is roughly $67,107 across tracked listings, which is about 96.2% 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 $9,502, 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 5 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 $67,107 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 12 carat Oval diamonds.