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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 £498 GBP
$667 USD
As of October 30, 2026
Save £334 GBP (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £832 GBP at 77 Diamonds · As of October 31, 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 £498 to £832, a £334 spread on the same certified stone. 77 Diamonds lists it at £832. 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: £832 GBP|Low: £498 GBP|High: £833 GBP|Avg: £625 GBP|+0.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 5£498 GBP
Retailer 6£500 GBP
Retailer 4£550 GBP
Retailer 3£584 GBP
Retailer 7£654 GBP
Retailer 2£766 GBP
77 Diamonds£832 GBP

31 data points across 7 retailers

6 retailers£498 GBP to £832 GBP

A
Cheapest Retailer
-
£498 GBP
$667 USD
A
Retailer 2
-
£500 GBP
$669 USD
View
A
Retailer 3
-
£550 GBP
$737 USD
View
A
Retailer 4
-
£584 GBP
$783 USD
View
B+
Retailer 5
-
£766 GBP
$1,026 USD
View
Most Expensive
B+
77 Diamonds
RADMBM7REUKJU · Oct 31
£832 GBP
View
5 more retailers have this diamond
Prices start from £498 GBPSave up to £334 GBP

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
£498 GBP