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Oval|Natural|GIA

0.30ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 2566733551

Certificate GIA 2566733551

Diamond specifications and retailer prices

From $399 AUD
$280 USD
As of October 28, 2026
Save $354 AUD (47%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $752 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 0.3ct natural oval diamond

This 0.3ct natural oval sits in the sub-half-carat band, graded J 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 2566733551. Listed at 7 retailers as of October 28, 2026, with prices from $399 to $752, a $354 spread on the same certified stone. MOH London lists it at $752. 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

0.30
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566733551
Dimensions5.18 × 3.71 × 2.22 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Feather
Top View
5.18 mm3.71 mm0.30 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566733551
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $752 AUD|Low: $399 AUD|High: $752 AUD|Avg: $553 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 4$399 AUD
Retailer 6$496 AUD
Retailer 3$497 AUD
Retailer 5$558 AUD
Retailer 2$571 AUD
MOH London$752 AUD

10 data points across 6 retailers

7 retailers$399 AUD to $752 AUD

B+
Cheapest Retailer
-
$399 AUD
$280 USD
B+
Retailer 2
-
$407 AUD
View
B+
Retailer 3
-
$496 AUD
$349 USD
View
B
Retailer 4
-
$497 AUD
£275 GBP
View
B
Retailer 5
-
$558 AUD
$392 USD
View
B
Retailer 6
-
$571 AUD
€382 EUR
View
Most Expensive
B
MOH London
33ED3C3E3 · Nov 2
$752 AUD
£416 GBP
View
6 more retailers have this diamond
Prices start from $399 AUDSave up to $354 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+
0.30ct Oval
$399 AUD