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Cushion|Natural|GIA

0.90ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 1186398044

Certificate GIA 1186398044

Diamond specifications and retailer prices

From £590 GBP
As of November 1, 2026
Save £750 GBP (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,341 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1186398044. Listed at 14 retailers as of November 1, 2026, with prices from £590 to £1,341, a £750 spread on the same certified stone. MOH London lists it at £1,341. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1186398044
Dimensions5.74 × 5.35 × 3.62 mm
L/W Ratio1.07
Top View
5.74 mm5.35 mm0.90 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1186398044
Side View
Table 65.0%CrownGirdle: Very ThickPavilionCulet: NDepth 67.6%

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: Nov 1
Current: £1,341 GBP|Low: £559 GBP|High: £1,921 GBP|Avg: £939 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 7£590 GBP
Retailer 9£613 GBP
Retailer 12£658 GBP
Retailer 8£664 GBP
Retailer 4£672 GBP
Retailer 11£677 GBP
Retailer 13£740 GBP
Retailer 6£845 GBP
Retailer 5£884 GBP
Retailer 2£1,025 GBP
Retailer 3£1,279 GBP
MOH London£1,341 GBP
Retailer 10£1,920 GBP

45 data points across 13 retailers

14 retailers£590 GBP to £1,341 GBP

A
Cheapest Retailer
-
£590 GBP
A
Retailer 2
-
£613 GBP
View
Final sale: no returns
A
Retailer 3
-
£614 GBP
View
A
Retailer 4
-
£658 GBP
View
Retailer 5
-
£664 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£672 GBP
View
A
Retailer 7
-
£677 GBP
View
A
Retailer 8
-
£711 GBP
View
A
Retailer 9
-
£740 GBP
View
A
Retailer 10
-
£845 GBP
View
A
Retailer 11
-
£888 GBP
View
A
Retailer 12
-
£1,025 GBP
View
B+
Retailer 13
-
£1,279 GBP
View
Most Expensive
B+
MOH London
5D1026C0B · Nov 4
£1,341 GBP
View
13 more retailers have this diamond
Prices start from £590 GBPSave up to £750 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
£590 GBP