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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 $853 SGD
$667 USD
As of October 30, 2026
Save $572 SGD (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,425 SGD 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 $853 to $1,425, a $572 spread on the same certified stone. 77 Diamonds lists it at $1,425. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,425 SGD|Low: $853 SGD|High: $1,428 SGD|Avg: $1,071 SGD|+0.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5$853 SGD
Retailer 6$856 SGD
Retailer 4$942 SGD
Retailer 3$1,001 SGD
Retailer 7$1,120 SGD
Retailer 2$1,312 SGD
77 Diamonds$1,425 SGD

32 data points across 7 retailers

6 retailers$853 SGD to $1,425 SGD

A
Cheapest Retailer
-
$853 SGD
$667 USD
A
Retailer 2
-
$856 SGD
$669 USD
View
A
Retailer 3
-
$942 SGD
$737 USD
View
A
Retailer 4
-
$1,001 SGD
$783 USD
View
B+
Retailer 5
-
$1,312 SGD
$1,026 USD
View
Most Expensive
B+
77 Diamonds
RADMBM7REUKJU · Nov 1
$1,425 SGD
£878 GBP
View
5 more retailers have this diamond
Prices start from $853 SGDSave up to $572 SGD

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
$853 SGD