6.4 Carat Oval Lab Grown Diamond Prices Comparison
As of February 2026, 6.4 carat oval lab grown diamonds usually range from $1,341 to $76,030, with an average price of $4,426.In the last month, prices for these diamonds are down 2.6%.Compare 67 verified listings across 5 retailers tracked by CaratRadar.
6.4 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 67 verified 6.4-carat oval lab grown diamonds listed across 5 online retailers. Prices in this segment range from $1,341 to $76,030, with an average asking price of $4,426 and a median of $2,081.
The price spread of $74,689 (98.2% 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.
67 diamonds tracked in this segment
Price range: $1,341 to $76,030
Average price: $4,426
Median price: $2,081
Available across 5 retailers
Savings potential: up to 98.2%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
67
$1,341
$4,426
$2,081
$76,030
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 81.9%6.35ct | Oval | I | VVS2 | Ideal
From $1,626
Compare at $9,010
IGISave 79%6.35ct | Oval | G | VVS2 | Ideal
From $1,905
Compare at $9,070
IGISave 85%6.35ct | Oval | G | VS2 | Very Good
From $1,575
Compare at $10,480
GIASave 54.4%6.35ct | Oval | F | VVS2 | Ideal
From $7,120
Compare at $15,630
IGISave 87.9%6.35ct | Oval | H | VVS2 | Ideal
From $1,341
Compare at $11,070
IGISave 88.5%6.35ct | Oval | E | VVS2 | Excellent
From $2,208
Compare at $19,170
IGISave 88.2%6.36ct | Oval | F | VVS2 | Excellent
From $1,744
Compare at $14,790
IGISave 78.9%6.36ct | Oval | F | VS2 | Fair
From $1,881
Compare at $8,920
IGISave 52.9%6.36ct | Oval | F | VVS2 | Excellent
From $2,123
Compare at $4,506
IGISave 79%6.36ct | Oval | G | VS1 | Very Good
From $1,641
Compare at $7,820
IGISave 73.6%6.36ct | Oval | D | VS1 | Ideal
From $4,777
Compare at $18,120
GIASave 31.2%6.36ct | Oval | D | FL | Ideal
From $76,030
Compare at $110,445
IGISave 89.2%6.37ct | Oval | E | VS1 | Very Good
From $1,772
Compare at $16,350
IGISave 68.9%6.37ct | Oval | F | VVS2 | Excellent
From $7,823
Compare at $25,157
IGISave 71.4%6.37ct | Oval | E | VVS2 | Ideal
From $4,735
Compare at $16,540
IGISave 41.5%6.37ct | Oval | H | VS2 | Ideal
From $2,101
Compare at $3,592
IGISave 80.1%6.37ct | Oval | F | VS1 | Excellent
From $1,713
Compare at $8,590
IGISave 83.7%6.38ct | Oval | E | VS2 | Very Good
From $2,178
Compare at $13,380
IGISave 13.6%6.38ct | Oval | D | VS2 | Ideal
From $9,348
Compare at $10,819
IGISave 81.2%6.38ct | Oval | F | VS1 | Excellent
From $1,715
Compare at $9,130
IGISave 88%6.38ct | Oval | E | VS2 | Excellent
From $1,897
Compare at $15,800
IGISave 80.1%6.38ct | Oval | F | VS1 | Excellent
From $1,715
Compare at $8,610
IGISave 77.1%6.39ct | Oval | F | VS1 | Very Good
From $2,272
Compare at $9,920
IGISave 79.5%6.39ct | Oval | F | VS1 | Excellent
From $1,655
Compare at $8,090
IGISave 73.1%6.39ct | Oval | G | IF | Excellent
From $15,378
Compare at $57,093
IGISave 82%6.4ct | Oval | H | VS2 | Excellent
From $1,573
Compare at $8,740
IGISave 80.1%6.4ct | Oval | F | VS1 | Excellent
From $1,720
Compare at $8,630
IGISave 81.4%6.4ct | Oval | F | VVS2 | Very Good
From $2,381
Compare at $12,820
IGISave 88.1%6.4ct | Oval | F | VVS2 | Very Good
From $2,085
Compare at $17,570
IGISave 89%6.4ct | Oval | F | VVS2 | Excellent
From $2,085
Compare at $19,000
IGISave 53.5%6.4ct | Oval | E | VS1 | Very Good
From $2,039
Compare at $4,382
IGISave 41.5%6.4ct | Oval | H | VS2 | Ideal
From $2,111
Compare at $3,608
IGISave 88%6.4ct | Oval | F | VVS2 | Ideal
From $1,784
Compare at $14,890
GIASave 43.6%6.4ct | Oval | D | VVS2 | Ideal
From $10,282
Compare at $18,220
IGISave 83.7%6.4ct | Oval | H | VS1 | Excellent
From $1,612
Compare at $9,880
IGISave 51.6%6.41ct | Oval | E | VVS2 | Ideal
From $4,349
Compare at $8,976
IGISave 88.1%6.41ct | Oval | F | VVS2 | Excellent
From $2,088
Compare at $17,600
IGISave 89.4%6.41ct | Oval | E | VS1 | Excellent
From $2,053
Compare at $19,370
IGISave 72.2%6.41ct | Oval | H | VS1 | Ideal
From $2,403
Compare at $8,630
IGISave 71.5%6.41ct | Oval | E | IF | Ideal
From $21,100
Compare at $74,140
IGISave 88%6.41ct | Oval | F | VVS2 | Excellent
From $1,786
Compare at $14,910
IGISave 79%6.41ct | Oval | E | VVS2 | Fair
From $2,081
Compare at $9,920
IGISave 79.1%6.41ct | Oval | F | VVS2 | Very Good
From $1,997
Compare at $9,540
IGISave 77.9%6.42ct | Oval | F | VS1 | Very Good
From $2,200
Compare at $9,970
IGISave 82%6.42ct | Oval | H | VS2 | Excellent
From $1,577
Compare at $8,760
IGISave 81.4%6.42ct | Oval | E | VVS2 | Very Good
From $2,481
Compare at $13,360
IGISave 86.8%6.42ct | Oval | E | VVS2 | Ideal
From $2,221
Compare at $16,760
IGISave 81.4%6.42ct | Oval | E | VS1 | Very Good
From $2,419
Compare at $13,030
IGISave 81.2%6.42ct | Oval | F | VS1 | Good
From $1,725
Compare at $9,190
IGISave 44.6%6.42ct | Oval | H | VS1 | Ideal
From $2,159
Compare at $3,895
Entry pricing in this category starts around $1,341.
What to Know When Shopping for 6.4 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $74,689 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 $2,081 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 67 comparable stones in this segment. Prices start around $1,341 and go up to $76,030.
Based on the latest market data, the average asking price is about $4,426 with a median around $2,081.
The observed spread is roughly $74,689 across tracked listings, which is about 98.2% 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 $2,081, 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 $74,689 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 6.4 carat Oval diamonds.