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Oval|Natural|GIA

3.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6512020495

Certificate GIA 6512020495

Diamond specifications and retailer prices

From $44,003 USD
As of October 31, 2026
Save $8,387 USD (16%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $52,389 USD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 3.51ct natural oval diamond

This 3.51ct natural oval sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6512020495. Listed at 4 retailers as of October 31, 2026, with prices from $44,003 to $52,389, a $8,387 spread on the same certified stone. 77 Diamonds lists it at $52,389. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.51
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6512020495
Dimensions11.54 × 8.29 × 5.44 mm
L/W Ratio1.39
Top View
11.54 mm8.29 mm3.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6512020495
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 65.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $52,389 USD|Low: $44,003 USD|High: $52,844 USD|Avg: $49,632 USD|+1.5%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$44,003 USD
Retailer 2$50,044 USD
Retailer 3$52,100 USD
77 Diamonds$52,389 USD

35 data points across 4 retailers

4 retailers$44,003 USD to $52,389 USD

B
Cheapest Retailer
-
$44,003 USD
B
Retailer 2
-
$50,044 USD
View
B
Retailer 3
-
$52,100 USD
View
Most Expensive
B
77 Diamonds
OVMBK5CQAXPS · Nov 2
$52,389 USD
£41,252 GBP
View
3 more retailers have this diamond
Prices start from $44,003 USDSave up to $8,387 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
3.51ct Oval
$44,003 USD