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Cushion|Natural|GIA

1.50ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 1559373415

Certificate GIA 1559373415

Diamond specifications and retailer prices

From $3,231 SGD
As of November 6, 2026
Save $3,918 SGD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,149 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559373415. Listed at 12 retailers as of November 4, 2026, with prices from $3,231 to $7,149, a $3,918 spread on the same certified stone. MOH London lists it at $7,149. 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

1.50
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559373415
Dimensions7.65 × 5.90 × 4.11 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Indented Natural
Top View
7.65 mm5.90 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1559373415
Side View
Table 68.0%CrownGirdle: MED-ETKPavilionCulet: 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: Nov 6
Current: $7,149 SGD|Low: $3,214 SGD|High: $7,298 SGD|Avg: $4,494 SGD|-2.1%
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 10$3,231 SGD
Retailer 2$3,414 SGD
Retailer 7$3,813 SGD
Retailer 4$4,272 SGD
Retailer 3$4,313 SGD
Retailer 8$4,438 SGD
Retailer 11$4,470 SGD
Retailer 6$4,493 SGD
Retailer 9$4,575 SGD
Retailer 5$4,989 SGD
MOH London$7,149 SGD

28 data points across 11 retailers

12 retailers$3,231 SGD to $7,149 SGD

A
Cheapest Retailer
-
$3,231 SGD
A
Retailer 2
-
$3,414 SGD
View
A
Retailer 3
-
$3,813 SGD
View
B+
Retailer 4
-
$4,014 SGD
View
B+
Retailer 5
-
$4,272 SGD
View
Retailer 6
-
$4,313 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$4,438 SGD
View
B+
Retailer 8
-
$4,470 SGD
View
B+
Retailer 9
-
$4,493 SGD
View
B+
Retailer 10
-
$4,575 SGD
View
B+
Retailer 11
-
$4,989 SGD
View
Most Expensive
B
MOH London
9336CC951 · Nov 4
$7,149 SGD
£4,392 GBP
View
11 more retailers have this diamond
Prices start from $3,231 SGDSave up to $3,918 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
1.50ct Cushion
$3,231 SGD