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Cushion|Natural|GIA

0.90ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 5211488060

Certificate GIA 5211488060

Diamond specifications and retailer prices

From £1,071 GBP
$1,435 USD
As of October 28, 2026
Save £2,240 GBP (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,311 GBP at Moon Ocean · As of October 30, 2026
View at Moon Ocean

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 5211488060. Listed at 10 retailers as of October 28, 2026, with prices from £1,071 to £3,311, a £2,240 spread on the same certified stone. Moon Ocean lists it at £3,311. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5211488060
Dimensions5.28 × 5.19 × 3.76 mm
L/W Ratio1.02
Top View
5.28 mm5.19 mm0.90 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5211488060
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 72.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £3,311 GBP|Low: £1,071 GBP|High: £3,346 GBP|Avg: £1,894 GBP|+0.6%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 5£1,071 GBP
Retailer 4£1,146 GBP
Retailer 6£1,284 GBP
Retailer 2£1,429 GBP
Retailer 3£2,246 GBP
Moon Ocean£3,311 GBP

44 data points across 6 retailers

10 retailers£1,071 GBP to £3,311 GBP

B+
Cheapest Retailer
-
£1,071 GBP
$1,435 USD
B
Retailer 2
-
£1,146 GBP
$1,536 USD
View
B
Retailer 3
-
£1,275 GBP
$1,708 USD
View
B
Retailer 4
-
£1,284 GBP
$1,721 USD
View
B
Retailer 5
-
£1,366 GBP
$1,830 USD
View
B
Retailer 6
-
£1,366 GBP
$1,830 USD
View
B
Retailer 7
-
£1,411 GBP
$1,890 USD
View
B
Retailer 8
-
£1,429 GBP
View
B
Retailer 9
-
£2,246 GBP
View
Most Expensive
B
Moon Ocean
NVN-146E353F1-060 · Oct 30
£3,311 GBP
View
9 more retailers have this diamond
Prices start from £1,071 GBPSave up to £2,240 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.

B+
0.90ct Cushion
£1,071 GBP