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Cushion|Natural|GIA

0.90ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 6371888168

Certificate GIA 6371888168

Diamond specifications and retailer prices

From £1,465 GBP
$1,951 USD
As of October 29, 2026
Save £663 GBP (31%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,128 GBP at Yorxs · As of October 29, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6371888168. Listed at 14 retailers as of October 29, 2026, with prices from £1,465 to £2,128, a £663 spread on the same certified stone. Yorxs lists it at £2,128. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6371888168
Dimensions5.76 × 5.29 × 3.58 mm
L/W Ratio1.09
Top View
5.76 mm5.29 mm0.90 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6371888168
Side View
Table 66.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 67.6%

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 29
Current: £1,806 GBP|Low: £1,289 GBP|High: £2,455 GBP|Avg: £1,737 GBP|+4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Yorxs
October 30, 2026
Retailer 10£1,289 GBP
Retailer 5£1,465 GBP
Retailer 3£1,538 GBP
Retailer 7£1,543 GBP
Retailer 8£1,587 GBP
Retailer 2£1,631 GBP
Retailer 4£1,711 GBP
Retailer 1£1,806 GBP
Retailer 6£1,951 GBP
Yorxs£2,128 GBP
Retailer 9£2,455 GBP

42 data points across 11 retailers

14 retailers£1,465 GBP to £2,128 GBP

B+
Cheapest Retailer
-
£1,465 GBP
$1,951 USD
B+
Retailer 2
-
£1,473 GBP
$1,962 USD
View
B+
Retailer 3
-
£1,479 GBP
$1,969 USD
View
B+
Retailer 4
-
£1,538 GBP
SGD 2,767 SGD
View
B+
Retailer 5
-
£1,543 GBP
$2,055 USD
View
B+
Retailer 6
-
£1,587 GBP
$2,114 USD
View
B
Retailer 7
-
£1,631 GBP
$2,172 USD
View
B
Retailer 8
-
£1,711 GBP
$2,278 USD
View
B
Retailer 9
-
£1,798 GBP
CA$3,326 CAD
View
B+
Retailer 10
-
£1,806 GBP
View
B
Retailer 11
-
£1,951 GBP
A$3,998 AUD
View
B
Retailer 12
-
£2,082 GBP
$2,772 USD
View
B
Retailer 13
-
£2,105 GBP
$2,804 USD
View
Most Expensive
B
Yorxs
518485706 · Oct 29
£2,128 GBP
€2,699 EUR
View
13 more retailers have this diamond
Prices start from £1,465 GBPSave up to £663 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
£1,465 GBP