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Cushion|Natural|GIA

0.90ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 1553406855

Certificate GIA 1553406855

Diamond specifications and retailer prices

From £850 GBP
HK$8,900 HKD
As of October 30, 2026
Save £1,323 GBP (61%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,174 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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1553406855. Listed at 20 retailers as of October 30, 2026, with prices from £850 to £2,174, a £1,323 spread on the same certified stone. Moon Ocean lists it at £2,174. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.58°
Pavilion angle52.04°
OriginNatural
Grading LabGIA
CertificateGIA 1553406855
Dimensions6.70 × 5.00 × 3.49 mm
L/W Ratio1.34
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Feather
Top View
6.70 mm5.00 mm0.90 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553406855
Side View
Table 68.0%Crown 38.58°Girdle: STK-THKPavilion 52.04°Culet: NoneDepth 69.7%

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: £2,174 GBP|Low: £859 GBP|High: £2,196 GBP|Avg: £1,375 GBP|-1.0%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2£864 GBP
Retailer 11£1,039 GBP
Retailer 10£1,045 GBP
Retailer 7£1,129 GBP
Retailer 9£1,194 GBP
Retailer 3£1,211 GBP
Retailer 4£1,253 GBP
Retailer 5£1,536 GBP
Retailer 6£1,646 GBP
Retailer 8£1,975 GBP
Moon Ocean£2,174 GBP

24 data points across 11 retailers

20 retailers£850 GBP to £2,174 GBP

A
Cheapest Retailer
-
£850 GBP
HK$8,900 HKD
A
Retailer 2
-
£864 GBP
₹110,277 INR
View
B+
Retailer 3
-
£1,039 GBP
$1,392 USD
View
Final sale: no returns
B+
Retailer 4
-
£1,043 GBP
$1,398 USD
View
A
Retailer 5
-
£1,045 GBP
SGD 1,892 SGD
View
A
Retailer 6
-
£1,126 GBP
$1,509 USD
View
A
Retailer 7
-
£1,129 GBP
$1,513 USD
View
B+
Retailer 8
-
£1,194 GBP
$1,600 USD
View
B+
Retailer 9
-
£1,196 GBP
SGD 2,165 SGD
View
B+
Retailer 10
-
£1,211 GBP
$1,623 USD
View
B+
Retailer 11
-
£1,228 GBP
$1,645 USD
View
B+
Retailer 12
-
£1,237 GBP
$1,657 USD
View
B+
Retailer 13
-
£1,246 GBP
$1,669 USD
View
B+
Retailer 14
-
£1,253 GBP
View
Retailer 15
-
£1,470 GBP
A$3,029 AUD
View
Price last confirmed 24 days ago
B+
Retailer 16
-
£1,536 GBP
€1,960 EUR
View
B
Retailer 17
-
£1,646 GBP
ZAR 35,619 ZAR
View
B
Retailer 18
-
£1,655 GBP
$2,218 USD
View
B
Retailer 19
-
£1,975 GBP
View
Most Expensive
B
Moon Ocean
NVN-08D239B4C-855 · Oct 30
£2,174 GBP
View
19 more retailers have this diamond
Prices start from £850 GBPSave up to £1,323 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
£850 GBP