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Cushion|Natural|GIA

0.90ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 6542390507

Certificate GIA 6542390507

Diamond specifications and retailer prices

From £398 GBP
$533 USD
As of October 31, 2026
Save £692 GBP (63%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,090 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion 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 6542390507. Listed at 6 retailers as of October 31, 2026, with prices from £398 to £1,090, a £692 spread on the same certified stone. Do Amore Diamonds lists it at £1,090. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542390507
Dimensions5.45 × 5.27 × 3.56 mm
L/W Ratio1.03
Top View
5.45 mm5.27 mm0.90 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542390507
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.6%

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: £1,090 GBP|Low: £368 GBP|High: £1,239 GBP|Avg: £599 GBP|-12.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 5£398 GBP
Retailer 6£436 GBP
Retailer 3£483 GBP
Retailer 4£490 GBP
Retailer 2£535 GBP
Do Amore Diamonds£1,090 GBP

40 data points across 6 retailers

6 retailers£398 GBP to £1,090 GBP

A
Cheapest Retailer
-
£398 GBP
$533 USD
Final sale: no returns
A
Retailer 2
-
£436 GBP
MYR 2,379 MYR
View
A
Retailer 3
-
£483 GBP
$647 USD
View
A
Retailer 4
-
£490 GBP
SGD 887 SGD
View
A
Retailer 5
-
£535 GBP
View
Most Expensive
B+
Do Amore Diamonds
12-100767563754 · Oct 31
£1,090 GBP
$1,460 USD
View
5 more retailers have this diamond
Prices start from £398 GBPSave up to £692 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 Cushion
£398 GBP