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Oval|Natural|GIA

0.40ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 5476548491

Certificate GIA 5476548491

Diamond specifications and retailer prices

From $786 AUD
£435 GBP
As of October 29, 2026
2 retailers carry this diamond
Most expensive: $786 AUD at MD Diamonds and Jewellers
View at MD Diamonds and Jewellers

About this 0.4ct natural oval diamond

This 0.4ct natural oval sits in the sub-half-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 5476548491. Listed at 2 retailers as of October 29, 2026. 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

0.40
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5476548491
Dimensions5.48 × 4.12 × 2.85 mm
L/W Ratio1.33
Top View
5.48 mm4.12 mm0.40 ctJ / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 5476548491
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $344 AUD|Low: $234 AUD|High: $683 AUD|Avg: $406 AUD|-14.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
May 21, 2026
Retailer 3$234 AUD
Retailer 7$273 AUD
Retailer 9$280 AUD
Retailer 6$326 AUD
Retailer 1$344 AUD
Retailer 4$399 AUD
Retailer 2$410 AUD
Retailer 5$478 AUD
Retailer 8$653 AUD

33 data points across 9 retailers

2 retailers

Retailer 1
-
$426 AUD
Price last confirmed 174 days ago
Most Expensive
B
MD Diamonds and Jewellers
5476548491 · Oct 29
$786 AUD
£435 GBP
View
1 more retailer has this diamond

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
0.40ct Oval
$786 AUD