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Cushion|Natural|GIA

0.90ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 2556360341

Certificate GIA 2556360341

Diamond specifications and retailer prices

From $807 SGD
As of November 6, 2026
Save $1,212 SGD (60%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,020 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556360341. Listed at 5 retailers as of November 2, 2026, with prices from $807 to $2,020, a $1,212 spread on the same certified stone. MOH London lists it at $2,020. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2556360341
Dimensions6.13 × 4.96 × 3.41 mm
L/W Ratio1.24
Key to symbols
Feather
Top View
6.13 mm4.96 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2556360341
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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: Nov 6
Current: $2,020 SGD|Low: $720 SGD|High: $2,127 SGD|Avg: $1,392 SGD|+10.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$807 SGD
Retailer 4$1,111 SGD
Retailer 3$1,238 SGD
Retailer 2$1,674 SGD
MOH London$2,020 SGD

43 data points across 5 retailers

5 retailers$807 SGD to $2,020 SGD

A
Cheapest Retailer
-
$807 SGD
Final sale: no returns
A
Retailer 2
-
$1,111 SGD
View
A
Retailer 3
-
$1,238 SGD
View
B+
Retailer 4
-
$1,674 SGD
View
Most Expensive
B
MOH London
4A9FBCD0B · Nov 2
$2,020 SGD
£1,241 GBP
View
4 more retailers have this diamond
Prices start from $807 SGDSave up to $1,212 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
$807 SGD