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Cushion|Natural|GIA

0.90ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 5373922170

Certificate GIA 5373922170

Diamond specifications and retailer prices

From £1,449 GBP
$1,941 USD
As of October 31, 2026
Save £648 GBP (31%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,097 GBP at Yorxs · As of October 31, 2026
View at Yorxs

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 5373922170. Listed at 17 retailers as of October 31, 2026, with prices from £1,449 to £2,097, a £648 spread on the same certified stone. Yorxs lists it at £2,097. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5373922170
Dimensions5.59 × 5.30 × 3.68 mm
L/W Ratio1.05
Top View
5.59 mm5.30 mm0.90 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5373922170
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,785 GBP|Low: £1,423 GBP|High: £2,103 GBP|Avg: £1,708 GBP|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Yorxs
November 1, 2026
Retailer 9£1,423 GBP
Retailer 6£1,449 GBP
Retailer 4£1,520 GBP
Retailer 8£1,527 GBP
Retailer 10£1,568 GBP
Retailer 5£1,711 GBP
Retailer 1£1,785 GBP
Retailer 2£1,806 GBP
Retailer 3£1,806 GBP
Retailer 11£1,866 GBP
Retailer 7£1,935 GBP
Yorxs£2,097 GBP

42 data points across 12 retailers

17 retailers£1,449 GBP to £2,097 GBP

B
Cheapest Retailer
-
£1,449 GBP
$1,941 USD
B
Retailer 2
-
£1,458 GBP
$1,953 USD
View
B
Retailer 3
-
£1,463 GBP
$1,960 USD
View
B
Retailer 4
-
£1,518 GBP
A$3,129 AUD
View
B+
Retailer 5
-
£1,520 GBP
SGD 2,752 SGD
View
B
Retailer 6
-
£1,527 GBP
$2,046 USD
View
B
Retailer 7
-
£1,568 GBP
$2,101 USD
View
B
Retailer 8
-
£1,630 GBP
$2,184 USD
View
B
Retailer 9
-
£1,711 GBP
$2,293 USD
View
B
Retailer 10
-
£1,777 GBP
CA$3,307 CAD
View
B
Retailer 11
-
£1,785 GBP
View
B
Retailer 12
-
£1,806 GBP
$2,420 USD
View
B
Retailer 13
-
£1,806 GBP
$2,420 USD
View
B
Retailer 14
-
£1,866 GBP
$2,500 USD
View
C
Retailer 15
-
£1,935 GBP
A$3,988 AUD
View
C
Retailer 16
-
£2,057 GBP
$2,756 USD
View
Most Expensive
B
Yorxs
518485680 · Oct 31
£2,097 GBP
€2,676 EUR
View
16 more retailers have this diamond
Prices start from £1,449 GBPSave up to £648 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
£1,449 GBP