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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 $62,642 AUD
$44,003 USD
As of October 31, 2026
Save $11,939 AUD (16%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $74,582 AUD at 77 Diamonds · As of November 1, 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 $62,642 to $74,582, a $11,939 spread on the same certified stone. 77 Diamonds lists it at $74,582. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $74,582 AUD|Low: $62,642 AUD|High: $75,229 AUD|Avg: $70,656 AUD|+1.5%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 4$62,642 AUD
Retailer 2$71,243 AUD
Retailer 3$74,170 AUD
77 Diamonds$74,582 AUD

34 data points across 4 retailers

4 retailers$62,642 AUD to $74,582 AUD

B
Cheapest Retailer
-
$62,642 AUD
$44,003 USD
B
Retailer 2
-
$71,243 AUD
$50,044 USD
View
B
Retailer 3
-
$74,170 AUD
$52,100 USD
View
Most Expensive
B
77 Diamonds
OVMBK5CQAXPS · Nov 1
$74,582 AUD
£41,252 GBP
View
3 more retailers have this diamond
Prices start from $62,642 AUDSave up to $11,939 AUD

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
$62,642 AUD