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Radiant|Natural|GIA

0.90ct J SI2 Radiant Natural Diamond

ID • J/SI2 • GIA 5231838740

Certificate GIA 5231838740

Diamond specifications and retailer prices

From $950 AUD
$667 USD
As of October 30, 2026
Save $637 AUD (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,587 AUD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.9ct natural radiant diamond

This 0.9ct natural radiant sits in the just-under-one-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 5231838740. Listed at 6 retailers as of October 30, 2026, with prices from $950 to $1,587, a $637 spread on the same certified stone. 77 Diamonds lists it at $1,587. 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

0.90
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5231838740
Dimensions6.17 × 4.76 × 3.37 mm
L/W Ratio1.30
Top View
6.17 mm4.76 mm0.90 ctJ / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5231838740
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 70.9%

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 30
Current: $1,587 AUD|Low: $950 AUD|High: $1,590 AUD|Avg: $1,193 AUD|+0.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5$950 AUD
Retailer 6$953 AUD
Retailer 4$1,049 AUD
Retailer 3$1,115 AUD
Retailer 7$1,247 AUD
Retailer 2$1,461 AUD
77 Diamonds$1,587 AUD

32 data points across 7 retailers

6 retailers$950 AUD to $1,587 AUD

A
Cheapest Retailer
-
$950 AUD
$667 USD
A
Retailer 2
-
$953 AUD
$669 USD
View
A
Retailer 3
-
$1,049 AUD
$737 USD
View
A
Retailer 4
-
$1,115 AUD
$783 USD
View
B+
Retailer 5
-
$1,461 AUD
$1,026 USD
View
Most Expensive
B+
77 Diamonds
RADMBM7REUKJU · Nov 1
$1,587 AUD
£878 GBP
View
5 more retailers have this diamond
Prices start from $950 AUDSave up to $637 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
0.90ct Radiant
$950 AUD