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Cushion|Natural|GIA

0.90ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 5366601877

Certificate GIA 5366601877

Diamond specifications and retailer prices

From $1,694 SGD
As of November 6, 2026
Save $1,957 SGD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,651 SGD at MOH London · As of November 2, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5366601877. Listed at 15 retailers as of November 2, 2026, with prices from $1,694 to $3,651, a $1,957 spread on the same certified stone. MOH London lists it at $3,651. 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
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5366601877
Dimensions5.42 × 5.33 × 3.63 mm
L/W Ratio1.02
Top View
5.42 mm5.33 mm0.90 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5366601877
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 68.0%

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: Nov 6
Current: $3,651 SGD|Low: $1,749 SGD|High: $3,695 SGD|Avg: $2,400 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$1,749 SGD
Retailer 8$1,775 SGD
Retailer 5$1,888 SGD
Retailer 9$2,006 SGD
Retailer 7$2,103 SGD
Retailer 3$2,311 SGD
Retailer 2$2,830 SGD
Retailer 4$3,051 SGD
MOH London$3,651 SGD

44 data points across 9 retailers

15 retailers$1,694 SGD to $3,651 SGD

B+
Cheapest Retailer
-
$1,694 SGD
B+
Retailer 2
-
$1,725 SGD
View
B
Retailer 3
-
$1,749 SGD
View
Retailer 4
-
$1,749 SGD
View
Price last confirmed 17 days ago
B
Retailer 5
-
$1,766 SGD
View
B
Retailer 6
-
$1,775 SGD
View
B
Retailer 7
-
$1,821 SGD
View
Retailer 8
-
$1,888 SGD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$2,006 SGD
View
B
Retailer 10
-
$2,103 SGD
View
B
Retailer 11
-
$2,311 SGD
View
B
Retailer 12
-
$2,830 SGD
View
C
Retailer 13
-
$2,978 SGD
View
B
Retailer 14
-
$3,051 SGD
View
Most Expensive
C
MOH London
74A7CDBAF · Nov 2
$3,651 SGD
£2,243 GBP
View
14 more retailers have this diamond
Prices start from $1,694 SGDSave up to $1,957 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.

B+
0.90ct Cushion
$1,694 SGD