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Cushion|Natural|GIA

0.90ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 1555245420

Certificate GIA 1555245420

Diamond specifications and retailer prices

From $1,099 SGD
HK$6,700 HKD
As of October 29, 2026
Save $1,504 SGD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,603 SGD at MOH London · As of October 29, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555245420. Listed at 14 retailers as of October 29, 2026, with prices from $1,099 to $2,603, a $1,504 spread on the same certified stone. MOH London lists it at $2,603. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.90
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.3°
Pavilion angle34.9°
OriginNatural
Grading LabGIA
CertificateGIA 1555245420
Dimensions5.82 × 5.55 × 3.61 mm
L/W Ratio1.05
Top View
5.82 mm5.55 mm0.90 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555245420
Side View
Table 66.0%Crown 34.3°Girdle: THN-THKPavilion 34.9°Culet: NoneDepth 65.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,603 SGD|Low: $1,099 SGD|High: $2,730 SGD|Avg: $1,659 SGD|-4.7%
MOH London
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
October 29, 2026
Retailer 9$1,099 SGD
Retailer 2$1,182 SGD
Retailer 13$1,327 SGD
Retailer 7$1,368 SGD
Retailer 14$1,398 SGD
Retailer 10$1,448 SGD
Retailer 11$1,551 SGD
Retailer 8$1,606 SGD
Retailer 4$1,615 SGD
Retailer 5$1,666 SGD
Retailer 3$1,843 SGD
Retailer 6$2,032 SGD
Retailer 12$2,058 SGD
MOH London$2,603 SGD

31 data points across 14 retailers

14 retailers$1,099 SGD to $2,603 SGD

A
Cheapest Retailer
-
$1,099 SGD
HK$6,700 HKD
A
Retailer 2
-
$1,182 SGD
$922 USD
View
Final sale: no returns
A
Retailer 3
-
$1,327 SGD
$1,035 USD
View
A
Retailer 4
-
$1,368 SGD
$1,067 USD
View
A
Retailer 5
-
$1,398 SGD
$1,091 USD
View
A
Retailer 6
-
$1,448 SGD
$1,130 USD
View
A
Retailer 7
-
$1,551 SGD
$1,210 USD
View
A
Retailer 8
-
$1,606 SGD
£987 GBP
View
A
Retailer 9
-
$1,615 SGD
$1,260 USD
View
A
Retailer 10
-
$1,666 SGD
$1,300 USD
View
A
Retailer 11
-
$1,843 SGD
$1,438 USD
View
B+
Retailer 12
-
$2,032 SGD
A$2,439 AUD
View
Price last confirmed 29 days ago
A
Retailer 13
-
$2,058 SGD
€1,529 EUR
View
Most Expensive
B+
MOH London
59727E12C · Oct 29
$2,603 SGD
£1,599 GBP
View
13 more retailers have this diamond
Prices start from $1,099 SGDSave up to $1,504 SGD

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
$1,099 SGD