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Cushion|Natural|GIA

0.90ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 6395556492

Certificate GIA 6395556492

Diamond specifications and retailer prices

From £993 GBP
$1,331 USD
As of October 31, 2026
Save £2,385 GBP (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,379 GBP at Moon Ocean · As of November 1, 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 G 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 6395556492. Listed at 14 retailers as of October 31, 2026, with prices from £993 to £3,379, a £2,385 spread on the same certified stone. Moon Ocean lists it at £3,379. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6395556492
Dimensions5.59 × 5.26 × 3.56 mm
L/W Ratio1.06
Top View
5.59 mm5.26 mm0.90 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6395556492
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 67.7%

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 31
Current: £3,379 GBP|Low: £1,056 GBP|High: £3,425 GBP|Avg: £1,774 GBP|-0.3%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 7£1,108 GBP
Retailer 3£1,113 GBP
Retailer 5£1,228 GBP
Retailer 6£1,337 GBP
Retailer 4£1,827 GBP
Retailer 2£2,287 GBP
Moon Ocean£3,379 GBP

40 data points across 7 retailers

14 retailers£993 GBP to £3,379 GBP

A
Cheapest Retailer
-
£993 GBP
$1,331 USD
A
Retailer 2
-
£1,108 GBP
$1,485 USD
View
A
Retailer 3
-
£1,113 GBP
View
B+
Retailer 4
-
£1,172 GBP
$1,571 USD
View
B+
Retailer 5
-
£1,179 GBP
$1,580 USD
View
B+
Retailer 6
-
£1,179 GBP
$1,580 USD
View
B+
Retailer 7
-
£1,218 GBP
$1,632 USD
View
B+
Retailer 8
-
£1,224 GBP
$1,640 USD
View
B+
Retailer 9
-
£1,228 GBP
$1,645 USD
View
B+
Retailer 10
-
£1,337 GBP
$1,792 USD
View
B+
Retailer 11
-
£1,440 GBP
$1,929 USD
View
B+
Retailer 12
-
£1,827 GBP
€2,331 EUR
View
B
Retailer 13
-
£2,287 GBP
View
Most Expensive
B
Moon Ocean
NVN-E51212C11-492 · Nov 1
£3,379 GBP
View
13 more retailers have this diamond
Prices start from £993 GBPSave up to £2,385 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
£993 GBP