6.3 Carat Oval Lab Grown Diamond Prices Comparison
As of May 2026, 6.3 carat oval lab grown diamonds usually range from $1,018 to $37,686, with an average price of $5,832.In the last month, prices for these diamonds are down 4.9%.Compare 33 verified listings across 6 retailers tracked by CaratRadar.
6.3 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 33 verified 6.3-carat oval lab grown diamonds listed across 6 online retailers. Prices in this segment range from $1,018 to $37,686, with an average asking price of $5,832 and a median of $4,069.
The price spread of $36,668 (97.3% 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.
33 diamonds tracked in this segment
Price range: $1,018 to $37,686
Average price: $5,832
Median price: $4,069
Available across 6 retailers
Savings potential: up to 97.3%
Price Range Overview
As of May 31, 2026Real market range for this carat, shape, and diamond type.
33
$1,018
$5,832
$4,069
$37,686
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 60.8%IGI | 6.31ct | Oval | E | VS1 | Very Good
From $1,329
Compare at $3,392
Save 68.4%IGI | 6.4ct | Oval | E | VS1 | Very Good
From $1,412
Compare at $4,462
Save 68.4%IGI | 6.36ct | Oval | F | VVS2 | Excellent
From $1,449
Compare at $4,589
Save 69.6%IGI | 6.36ct | Oval | E | VS2 | Ideal
From $1,455
Compare at $4,790
Save 70%IGI | 6.32ct | Oval | E | VVS2 | Excellent
From $1,518
Compare at $5,055
Save 55.4%IGI | 6.3ct | Oval | F | VVS2 | Very Good
From $1,530
Compare at $3,432
Save 75.1%IGI | 6.33ct | Oval | G | VS1 | Ideal
From $1,611
Compare at $6,470
Save 76.9%IGI | 6.33ct | Oval | G | VS1 | Ideal
From $1,613
Compare at $6,970
Save 49.9%IGI | 6.36ct | Oval | FANCY | VVS2 | Excellent
From $1,968
Compare at $3,932
Save 72.9%IGI | 6.32ct | Oval | FANCY | VVS2 | Very Good
From $2,011
Compare at $7,410
Save 39.2%IGI | 6.34ct | Oval | F | VS1 | Very Good
From $2,459
Compare at $4,047
Save 70.2%IGI | 6.3ct | Oval | G | VVS2 | Very Good
From $2,741
Compare at $9,210
Save 72.5%IGI | 6.4ct | Oval | F | VVS2 | Very Good
From $2,825
Compare at $10,290
Save 65.1%IGI | 6.37ct | Oval | H | VS1 | Ideal
From $3,121
Compare at $8,930
Save 66.6%IGI | 6.37ct | Oval | E | VVS1 | Very Good
From $3,624
Compare at $10,865
Save 74.1%IGI | 6.32ct | Oval | FANCY | VVS2 | Good
From $3,636
Compare at $14,054
Save 74.1%IGI | 6.37ct | Oval | FANCY | VVS2 | Very Good
From $3,665
Compare at $14,165
Save 76.3%IGI | 6.3ct | Oval | FANCY | VVS2 | Ideal
From $4,165
Compare at $17,550
Save 66.4%IGI | 6.33ct | Oval | FANCY | VS1 | Excellent
From $4,392
Compare at $13,071
Save 72.6%IGI | 6.37ct | Oval | E | VVS2 | Ideal
From $4,550
Compare at $16,590
Save 60.3%IGI | 6.33ct | Oval | D | VVS1 | Very Good
From $4,792
Compare at $12,058
Save 61.9%GIA | 6.35ct | Oval | F | VVS2 | Ideal
From $5,961
Compare at $15,630
Save 41.3%IGI | 6.38ct | Oval | D | VS2 | Ideal
From $6,347
Compare at $10,820
Save 55.7%IGI | 6.33ct | Oval | E | VVS1 | Ideal
From $8,152
Compare at $18,410
Save 42.9%GIA | 6.4ct | Oval | D | VVS2 | Ideal
From $10,405
Compare at $18,220
Save 44.8%IGI | 6.34ct | Oval | D | VVS1 | Ideal
From $13,336
Compare at $24,166
Save 78.7%IGI | 6.34ct | Oval | E | IF | Ideal
From $15,585
Compare at $73,340
Save 45.5%GIA | 6.34ct | Oval | E | VS1 | Ideal
From $16,840
Compare at $30,920
Save 43.7%IGI | 6.32ct | Oval | D | FL | Ideal
From $25,794
Compare at $45,850
Save 28.7%IGI | 6.38ct | Oval | D | FL | Ideal
From $36,952
Compare at $51,859
Save 30.9%IGI | 6.4ct | Oval | D | FL | Ideal
From $37,068
Compare at $53,650
Save 36.9%GIA | 6.36ct | Oval | D | FL | Ideal
From $50,405
Compare at $79,894
GIA | 6.35ct | Oval | D | FL | Ideal
From $56,530
Compare at $62,347
Entry pricing in this category starts around $1,018.
What to Know When Shopping for 6.3 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $36,668 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 $4,069 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 33 comparable stones in this segment. Prices start around $1,018 and go up to $37,686.
Based on the latest market data, the average asking price is about $5,832 with a median around $4,069.
The observed spread is roughly $36,668 across tracked listings, which is about 97.3% 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 $5,832. The median price is $4,069, 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 6 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 $36,668 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 6.3 carat Oval diamonds.