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Cushion|Natural|GIA

0.90ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 6541584869

Certificate GIA 6541584869

Diamond specifications and retailer prices

From £640 GBP
HK$6,700 HKD
As of November 1, 2026
Save £909 GBP (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,549 GBP at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541584869. Listed at 15 retailers as of November 1, 2026, with prices from £640 to £1,549, a £909 spread on the same certified stone. MOH London lists it at £1,549. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 6541584869
Dimensions5.52 × 5.44 × 3.78 mm
L/W Ratio1.01
Top View
5.52 mm5.44 mm0.90 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541584869
Side View
Table 68.0%CrownGirdle: THK-VTKPavilion 39.8°Culet: NoneDepth 69.5%

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: Nov 1
Current: £1,549 GBP|Low: £640 GBP|High: £1,645 GBP|Avg: £1,039 GBP|-5.8%
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
Retailer 14
November 2, 2026
Retailer 8£640 GBP
Retailer 12£780 GBP
Retailer 10£830 GBP
Retailer 3£871 GBP
Retailer 11£888 GBP
Retailer 5£910 GBP
Retailer 14£955 GBP
Retailer 7£964 GBP
Retailer 9£1,006 GBP
Retailer 6£1,160 GBP
Retailer 2£1,183 GBP
Retailer 13£1,259 GBP
Retailer 4£1,367 GBP
MOH London£1,549 GBP

26 data points across 14 retailers

15 retailers£640 GBP to £1,549 GBP

A
Cheapest Retailer
-
£640 GBP
HK$6,700 HKD
B+
Retailer 2
-
£780 GBP
$1,045 USD
View
Final sale: no returns
A
Retailer 3
-
£830 GBP
€1,059 EUR
View
A
Retailer 4
-
£871 GBP
$1,167 USD
View
A
Retailer 5
-
£888 GBP
$1,190 USD
View
Retailer 6
-
£910 GBP
SGD 1,647 SGD
View
Price last confirmed 10 days ago
A
Retailer 7
-
£955 GBP
$1,280 USD
View
A
Retailer 8
-
£964 GBP
View
A
Retailer 9
-
£1,006 GBP
$1,348 USD
View
B+
Retailer 10
-
£1,158 GBP
A$2,388 AUD
View
Retailer 11
-
£1,160 GBP
A$2,391 AUD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
£1,183 GBP
€1,510 EUR
View
B+
Retailer 13
-
£1,259 GBP
ZAR 27,245 ZAR
View
Retailer 14
-
£1,367 GBP
$1,831 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
CB9384248 · Nov 1
£1,549 GBP
View
14 more retailers have this diamond
Prices start from £640 GBPSave up to £909 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
£640 GBP