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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 $1,183 NZD
$667 USD
As of November 1, 2026
Save $794 NZD (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,978 NZD 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 November 1, 2026, with prices from $1,183 to $1,978, a $794 spread on the same certified stone. 77 Diamonds lists it at $1,978. 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: Nov 1
Current: $1,978 NZD|Low: $1,183 NZD|High: $1,981 NZD|Avg: $1,487 NZD|+0.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5$1,183 NZD
Retailer 6$1,188 NZD
Retailer 4$1,308 NZD
Retailer 3$1,389 NZD
Retailer 7$1,554 NZD
Retailer 2$1,820 NZD
77 Diamonds$1,978 NZD

32 data points across 7 retailers

6 retailers$1,183 NZD to $1,978 NZD

A
Cheapest Retailer
-
$1,183 NZD
$667 USD
A
Retailer 2
-
$1,188 NZD
$669 USD
View
A
Retailer 3
-
$1,308 NZD
$737 USD
View
A
Retailer 4
-
$1,389 NZD
$783 USD
View
B+
Retailer 5
-
$1,820 NZD
$1,026 USD
View
Most Expensive
B+
77 Diamonds
RADMBM7REUKJU · Nov 1
$1,978 NZD
£878 GBP
View
5 more retailers have this diamond
Prices start from $1,183 NZDSave up to $794 NZD

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
$1,183 NZD