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Round|Natural|GIA

0.30ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5566546432

Certificate GIA 5566546432

Diamond specifications and retailer prices

From $233 AUD
₹15,578 INR
As of October 31, 2026
Save $583 AUD (71%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $815 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 0.3ct natural round diamond

This 0.3ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5566546432. Listed at 8 retailers as of October 26, 2026, with prices from $233 to $815, a $583 spread on the same certified stone. MOH London lists it at $815. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5566546432
Dimensions4.31 × 4.33 × 2.66 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
4.31 mm4.33 mm0.30 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5566546432
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.6%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $815 AUD|Low: $233 AUD|High: $823 AUD|Avg: $468 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 2$233 AUD
Retailer 6$292 AUD
Retailer 8$345 AUD
Retailer 5$413 AUD
Retailer 7$508 AUD
Retailer 3$517 AUD
Retailer 4$583 AUD
MOH London$815 AUD

23 data points across 8 retailers

8 retailers$233 AUD to $815 AUD

A
Cheapest Retailer
-
$233 AUD
₹15,578 INR
A
Retailer 2
-
$292 AUD
HK$1,600 HKD
View
A
Retailer 3
-
$345 AUD
$242 USD
View
A
Retailer 4
-
$413 AUD
View
B+
Retailer 5
-
$508 AUD
$357 USD
View
B+
Retailer 6
-
$517 AUD
£286 GBP
View
B
Retailer 7
-
$583 AUD
€390 EUR
View
Most Expensive
B
MOH London
ABF5CD583 · Oct 26
$815 AUD
£451 GBP
View
7 more retailers have this diamond
Prices start from $233 AUDSave up to $583 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
0.30ct Round
$233 AUD