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Cushion|Natural|GIA

0.90ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 2166464028

Certificate GIA 2166464028

Diamond specifications and retailer prices

From £1,661 GBP
$2,225 USD
As of November 1, 2026
Save £2,038 GBP (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,698 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2166464028. Listed at 20 retailers as of November 1, 2026, with prices from £1,661 to £3,698, a £2,038 spread on the same certified stone. MOH London lists it at £3,698. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2166464028
Dimensions5.81 × 5.06 × 3.48 mm
L/W Ratio1.15
Top View
5.81 mm5.06 mm0.90 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2166464028
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £3,698 GBP|Low: £1,471 GBP|High: £3,743 GBP|Avg: £2,261 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6£1,661 GBP
Retailer 3£1,670 GBP
Retailer 8£1,765 GBP
Retailer 7£1,892 GBP
Retailer 10£1,912 GBP
Retailer 11£2,078 GBP
Retailer 2£2,257 GBP
Retailer 9£2,365 GBP
Retailer 5£2,467 GBP
Retailer 4£3,113 GBP
MOH London£3,698 GBP

43 data points across 11 retailers

20 retailers£1,661 GBP to £3,698 GBP

B
Cheapest Retailer
-
£1,661 GBP
$2,225 USD
B
Retailer 2
-
£1,670 GBP
$2,238 USD
View
B
Retailer 3
-
£1,719 GBP
$2,303 USD
View
B
Retailer 4
-
£1,727 GBP
$2,314 USD
View
B
Retailer 5
-
£1,765 GBP
$2,365 USD
View
Final sale: no returns
B
Retailer 6
-
£1,804 GBP
$2,417 USD
View
B
Retailer 7
-
£1,845 GBP
$2,472 USD
View
B
Retailer 8
-
£1,892 GBP
$2,535 USD
View
B
Retailer 9
-
£1,912 GBP
$2,562 USD
View
B
Retailer 10
-
£2,078 GBP
$2,784 USD
View
B
Retailer 11
-
£2,090 GBP
CA$3,889 CAD
View
B
Retailer 12
-
£2,187 GBP
$2,930 USD
View
B
Retailer 13
-
£2,187 GBP
$2,930 USD
View
B
Retailer 14
-
£2,257 GBP
View
B
Retailer 15
-
£2,261 GBP
$3,030 USD
View
Retailer 16
-
£2,365 GBP
A$4,875 AUD
View
Price last confirmed 25 days ago
B
Retailer 17
-
£2,419 GBP
$3,241 USD
View
B
Retailer 18
-
£2,467 GBP
€3,148 EUR
View
C
Retailer 19
-
£3,113 GBP
ZAR 67,393 ZAR
View
Most Expensive
C
MOH London
78000C01D · Nov 1
£3,698 GBP
View
19 more retailers have this diamond
Prices start from £1,661 GBPSave up to £2,038 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.

B
0.90ct Cushion
£1,661 GBP