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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 3555518161

Certificate GIA 3555518161

Diamond specifications and retailer prices

From $2,804 SGD
As of November 6, 2026
Save $3,399 SGD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,203 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555518161. Listed at 13 retailers as of November 4, 2026, with prices from $2,804 to $6,203, a $3,399 spread on the same certified stone. MOH London lists it at $6,203. 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

1.50
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 3555518161
Dimensions7.59 × 5.96 × 4.21 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural
Top View
7.59 mm5.96 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 3555518161
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 70.6%

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: $6,203 SGD|Low: $2,772 SGD|High: $6,325 SGD|Avg: $3,978 SGD|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$2,804 SGD
Retailer 2$2,982 SGD
Retailer 6$3,289 SGD
Retailer 8$3,718 SGD
Retailer 9$3,894 SGD
Retailer 4$3,913 SGD
Retailer 10$4,050 SGD
Retailer 3$4,328 SGD
Retailer 5$4,538 SGD
MOH London$6,203 SGD

32 data points across 10 retailers

13 retailers$2,804 SGD to $6,203 SGD

A
Cheapest Retailer
-
$2,804 SGD
A
Retailer 2
-
$2,982 SGD
View
B+
Retailer 3
-
$3,289 SGD
View
B+
Retailer 4
-
$3,491 SGD
View
B+
Retailer 5
-
$3,492 SGD
View
B+
Retailer 6
-
$3,713 SGD
View
Retailer 7
-
$3,718 SGD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$3,894 SGD
View
B+
Retailer 9
-
$3,913 SGD
View
B+
Retailer 10
-
$4,050 SGD
View
B+
Retailer 11
-
$4,328 SGD
View
B+
Retailer 12
-
$4,538 SGD
View
Most Expensive
B
MOH London
94D18FCE6 · Nov 4
$6,203 SGD
£3,811 GBP
View
12 more retailers have this diamond
Prices start from $2,804 SGDSave up to $3,399 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
$2,804 SGD