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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 5231995738

Certificate GIA 5231995738

Diamond specifications and retailer prices

From $2,755 SGD
As of November 6, 2026
Save $3,576 SGD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,331 SGD at MOH London · As of November 2, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5231995738. Listed at 16 retailers as of November 2, 2026, with prices from $2,755 to $6,331, a $3,576 spread on the same certified stone. MOH London lists it at $6,331. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231995738
Dimensions7.46 × 5.72 × 4.15 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.46 mm5.72 mm1.50 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231995738
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 72.5%

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: $6,331 SGD|Low: $2,707 SGD|High: $6,649 SGD|Avg: $4,118 SGD|-4.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 4$2,755 SGD
Retailer 12$3,163 SGD
Retailer 11$3,309 SGD
Retailer 14$3,473 SGD
Retailer 2$3,477 SGD
Retailer 6$3,499 SGD
Retailer 10$3,772 SGD
Retailer 5$3,776 SGD
Retailer 7$3,805 SGD
Retailer 9$3,833 SGD
Retailer 3$4,052 SGD
Retailer 8$4,173 SGD
Retailer 13$4,375 SGD
Retailer 15$5,813 SGD
MOH London$6,331 SGD

24 data points across 15 retailers

16 retailers$2,755 SGD to $6,331 SGD

A
Cheapest Retailer
-
$2,755 SGD
B+
Retailer 2
-
$3,163 SGD
View
B+
Retailer 3
-
$3,309 SGD
View
Final sale: no returns
B+
Retailer 4
-
$3,473 SGD
View
B+
Retailer 5
-
$3,477 SGD
View
B+
Retailer 6
-
$3,499 SGD
View
B+
Retailer 7
-
$3,772 SGD
View
B+
Retailer 8
-
$3,776 SGD
View
B+
Retailer 9
-
$3,805 SGD
View
B+
Retailer 10
-
$3,833 SGD
View
B+
Retailer 11
-
$3,996 SGD
View
B+
Retailer 12
-
$4,052 SGD
View
B+
Retailer 13
-
$4,173 SGD
View
B+
Retailer 14
-
$4,375 SGD
View
B
Retailer 15
-
$5,813 SGD
View
Most Expensive
B
MOH London
0D01DAB4C · Nov 2
$6,331 SGD
£3,890 GBP
View
15 more retailers have this diamond
Prices start from $2,755 SGDSave up to $3,576 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
$2,755 SGD