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Cushion|Natural|GIA

0.90ct H SI2 Cushion Natural Diamond

VG • H/SI2 • GIA 6542880078

Certificate GIA 6542880078

Diamond specifications and retailer prices

From £439 GBP
HK$4,600 HKD
As of October 30, 2026
Save £1,101 GBP (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,541 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542880078. Listed at 14 retailers as of October 30, 2026, with prices from £439 to £1,541, a £1,101 spread on the same certified stone. Moon Ocean lists it at £1,541. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle37.9°
OriginNatural
Grading LabGIA
CertificateGIA 6542880078
Dimensions6.54 × 5.17 × 3.44 mm
L/W Ratio1.26
Top View
6.54 mm5.17 mm0.90 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542880078
Side View
Table 68.0%CrownGirdle: STK-VTKPavilion 37.9°Culet: NoneDepth 66.5%

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: Oct 30
Current: £1,541 GBP|Low: £439 GBP|High: £1,620 GBP|Avg: £777 GBP|-4.5%
Moon Ocean
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
October 31, 2026
Retailer 6£439 GBP
Retailer 10£547 GBP
Retailer 14£597 GBP
Retailer 3£611 GBP
Retailer 9£618 GBP
Retailer 7£632 GBP
Retailer 5£684 GBP
Retailer 8£693 GBP
Retailer 4£749 GBP
Retailer 12£766 GBP
Retailer 2£840 GBP
Retailer 11£926 GBP
Retailer 13£1,093 GBP
Moon Ocean£1,541 GBP

28 data points across 14 retailers

14 retailers£439 GBP to £1,541 GBP

A
Cheapest Retailer
-
£439 GBP
HK$4,600 HKD
B+
Retailer 2
-
£547 GBP
$733 USD
View
Final sale: no returns
A
Retailer 3
-
£597 GBP
$800 USD
View
Retailer 4
-
£611 GBP
SGD 1,107 SGD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£618 GBP
$828 USD
View
A
Retailer 6
-
£632 GBP
View
A
Retailer 7
-
£693 GBP
View
A
Retailer 8
-
£749 GBP
$1,004 USD
View
A
Retailer 9
-
£766 GBP
$1,027 USD
View
A
Retailer 10
-
£840 GBP
€1,072 EUR
View
B+
Retailer 11
-
£872 GBP
A$1,798 AUD
View
Retailer 12
-
£926 GBP
$1,241 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£1,093 GBP
View
Most Expensive
B
Moon Ocean
NVN-756FC4A72-078 · Oct 30
£1,541 GBP
View
13 more retailers have this diamond
Prices start from £439 GBPSave up to £1,101 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
£439 GBP