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Cushion|Natural|GIA

0.90ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 5436167906

Certificate GIA 5436167906

Diamond specifications and retailer prices

From £720 GBP
$965 USD
As of November 1, 2026
Save £957 GBP (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,677 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 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 5436167906. Listed at 17 retailers as of November 1, 2026, with prices from £720 to £1,677, a £957 spread on the same certified stone. Moon Ocean lists it at £1,677. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5436167906
Dimensions5.40 × 5.25 × 3.68 mm
L/W Ratio1.03
Top View
5.40 mm5.25 mm0.90 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5436167906
Side View
Table 66.0%CrownGirdle: MED-MEDPavilionCulet: NoneDepth 70.1%

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: £1,677 GBP|Low: £687 GBP|High: £1,753 GBP|Avg: £1,035 GBP|-3.9%
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 7£720 GBP
Retailer 15£728 GBP
Retailer 3£757 GBP
Retailer 12£758 GBP
Retailer 14£790 GBP
Retailer 5£860 GBP
Retailer 16£891 GBP
Retailer 6£955 GBP
Retailer 13£955 GBP
Retailer 4£985 GBP
Retailer 2£994 GBP
Retailer 8£1,175 GBP
Retailer 10£1,220 GBP
Retailer 11£1,276 GBP
Retailer 9£1,596 GBP
Moon Ocean£1,677 GBP

34 data points across 16 retailers

17 retailers£720 GBP to £1,677 GBP

A
Cheapest Retailer
-
£720 GBP
$965 USD
A
Retailer 2
-
£728 GBP
$976 USD
View
Final sale: no returns
A
Retailer 3
-
£757 GBP
$1,014 USD
View
A
Retailer 4
-
£758 GBP
$1,015 USD
View
Retailer 5
-
£780 GBP
$1,045 USD
View
Price last confirmed 34 days ago
A
Retailer 6
-
£790 GBP
$1,058 USD
View
A
Retailer 7
-
£860 GBP
$1,153 USD
View
B+
Retailer 8
-
£891 GBP
$1,194 USD
View
B+
Retailer 9
-
£955 GBP
$1,280 USD
View
B+
Retailer 10
-
£955 GBP
$1,280 USD
View
B+
Retailer 11
-
£985 GBP
$1,320 USD
View
B+
Retailer 12
-
£994 GBP
View
Retailer 13
-
£1,175 GBP
A$2,423 AUD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
£1,220 GBP
€1,557 EUR
View
B+
Retailer 15
-
£1,276 GBP
ZAR 27,628 ZAR
View
B
Retailer 16
-
£1,596 GBP
View
Most Expensive
B
Moon Ocean
NVN-FFC3AA06D-906 · Nov 1
£1,677 GBP
View
16 more retailers have this diamond
Prices start from £720 GBPSave up to £957 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
£720 GBP