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Cushion|Natural|GIA

0.90ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 7506658278

Certificate GIA 7506658278

Diamond specifications and retailer prices

From £541 GBP
$719 USD
As of October 28, 2026
Save £987 GBP (65%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,528 GBP at Moon Ocean · As of October 29, 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 H 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 7506658278. Listed at 11 retailers as of October 28, 2026, with prices from £541 to £1,528, a £987 spread on the same certified stone. Moon Ocean lists it at £1,528. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7506658278
Dimensions5.30 × 5.01 × 3.79 mm
L/W Ratio1.06
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
5.30 mm5.01 mm0.90 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7506658278
Side View
Table 62.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 75.7%

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 28
Current: £1,528 GBP|Low: £541 GBP|High: £1,787 GBP|Avg: £865 GBP|-14.1%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 8£541 GBP
Retailer 9£583 GBP
Retailer 4£587 GBP
Retailer 10£596 GBP
Retailer 5£675 GBP
Retailer 11£686 GBP
Retailer 2£703 GBP
Retailer 3£737 GBP
Retailer 7£830 GBP
Retailer 6£1,081 GBP
Moon Ocean£1,528 GBP

36 data points across 11 retailers

11 retailers£541 GBP to £1,528 GBP

A
Cheapest Retailer
-
£541 GBP
$719 USD
Final sale: no returns
A
Retailer 2
-
£583 GBP
$775 USD
View
A
Retailer 3
-
£587 GBP
$780 USD
View
A
Retailer 4
-
£596 GBP
$792 USD
View
A
Retailer 5
-
£675 GBP
$897 USD
View
A
Retailer 6
-
£686 GBP
View
A
Retailer 7
-
£703 GBP
View
A
Retailer 8
-
£737 GBP
$979 USD
View
A
Retailer 9
-
£830 GBP
€1,050 EUR
View
B+
Retailer 10
-
£1,081 GBP
View
Most Expensive
B+
Moon Ocean
NVN-420623725-278 · Oct 29
£1,528 GBP
View
10 more retailers have this diamond
Prices start from £541 GBPSave up to £987 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
£541 GBP