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Oval|Natural|GIA

0.51ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 6371399705

Certificate GIA 6371399705

Diamond specifications and retailer prices

From $520 AUD
As of November 6, 2026
Save $621 AUD (54%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,141 AUD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6371399705. Listed at 3 retailers as of November 6, 2026, with prices from $520 to $1,141, a $621 spread on the same certified stone. 77 Diamonds lists it at $1,141. 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

0.51
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6371399705
Dimensions6.24 × 4.38 × 2.82 mm
L/W Ratio1.42
Top View
6.24 mm4.38 mm0.51 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6371399705
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,141 AUD|Low: $520 AUD|High: $1,162 AUD|Avg: $865 AUD|+0.5%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2$520 AUD
Retailer 3$914 AUD
77 Diamonds$1,141 AUD

44 data points across 3 retailers

3 retailers$520 AUD to $1,141 AUD

A
Cheapest Retailer
-
$520 AUD
B
Retailer 2
-
$914 AUD
View
Most Expensive
B
77 Diamonds
OVCP2EEW2DNR · Nov 6
$1,141 AUD
£617 GBP
View
2 more retailers have this diamond
Prices start from $520 AUDSave up to $621 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.

A
0.51ct Oval
$520 AUD