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Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1555689564

Certificate GIA 1555689564

Diamond specifications and retailer prices

From $3,000 SGD
As of November 6, 2026
Save $2,871 SGD (49%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,871 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic 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 1555689564. Listed at 8 retailers as of November 2, 2026, with prices from $3,000 to $5,871, a $2,871 spread on the same certified stone. MOH London lists it at $5,871. 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555689564
Dimensions7.26 × 5.38 × 3.70 mm
L/W Ratio1.35
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Needle
Top View
7.26 mm5.38 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555689564
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.8%

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: $5,871 SGD|Low: $2,270 SGD|High: $5,941 SGD|Avg: $3,199 SGD|+44.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$2,270 SGD
Retailer 11$2,325 SGD
Retailer 10$2,540 SGD
Retailer 8$3,000 SGD
Retailer 6$3,168 SGD
Retailer 2$3,219 SGD
Retailer 7$3,313 SGD
Retailer 9$3,531 SGD
Retailer 4$3,756 SGD
Retailer 5$4,090 SGD
MOH London$5,871 SGD

34 data points across 11 retailers

8 retailers$3,000 SGD to $5,871 SGD

B+
Cheapest Retailer
-
$3,000 SGD
B+
Retailer 2
-
$3,168 SGD
View
B+
Retailer 3
-
$3,219 SGD
View
B
Retailer 4
-
$3,313 SGD
View
B
Retailer 5
-
$3,531 SGD
View
B
Retailer 6
-
$3,756 SGD
View
B
Retailer 7
-
$4,090 SGD
View
Most Expensive
B
MOH London
57F3EF09A · Nov 2
$5,871 SGD
£3,607 GBP
View
7 more retailers have this diamond
Prices start from $3,000 SGDSave up to $2,871 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+
1.20ct Cushion
$3,000 SGD