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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 1555054425

Certificate GIA 1555054425

Diamond specifications and retailer prices

From $4,281 SGD
As of November 6, 2026
Save $4,938 SGD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,219 SGD at MOH London · As of November 1, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1555054425. Listed at 21 retailers as of November 1, 2026, with prices from $4,281 to $9,219, a $4,938 spread on the same certified stone. MOH London lists it at $9,219. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555054425
Dimensions7.45 × 5.73 × 4.17 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.45 mm5.73 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555054425
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 72.8%

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: $9,219 SGD|Low: $4,281 SGD|High: $9,466 SGD|Avg: $5,930 SGD|-2.6%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 17$4,281 SGD
Retailer 8$4,941 SGD
Retailer 16$4,962 SGD
Retailer 18$5,043 SGD
Retailer 9$5,067 SGD
Retailer 10$5,067 SGD
Retailer 3$5,223 SGD
Retailer 19$5,229 SGD
Retailer 7$5,340 SGD
Retailer 2$5,347 SGD
Retailer 13$5,452 SGD
Retailer 11$5,485 SGD
Retailer 6$5,706 SGD
Retailer 14$5,706 SGD
Retailer 5$6,211 SGD
Retailer 12$6,376 SGD
Retailer 15$6,913 SGD
Retailer 4$9,058 SGD
MOH London$9,219 SGD

20 data points across 19 retailers

21 retailers$4,281 SGD to $9,219 SGD

A
Cheapest Retailer
-
$4,281 SGD
B+
Retailer 2
-
$4,941 SGD
View
B+
Retailer 3
-
$4,962 SGD
View
B+
Retailer 4
-
$5,043 SGD
View
Retailer 5
-
$5,067 SGD
View
Price last confirmed 9 days ago
Retailer 6
-
$5,067 SGD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
$5,223 SGD
View
B+
Retailer 8
-
$5,229 SGD
View
Final sale: no returns
B+
Retailer 9
-
$5,340 SGD
View
B+
Retailer 10
-
$5,347 SGD
View
B+
Retailer 11
-
$5,452 SGD
View
Retailer 12
-
$5,485 SGD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$5,706 SGD
View
B+
Retailer 14
-
$5,706 SGD
View
Retailer 15
-
$6,043 SGD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$6,145 SGD
View
B+
Retailer 17
-
$6,211 SGD
View
B+
Retailer 18
-
$6,376 SGD
View
B
Retailer 19
-
$6,913 SGD
View
B
Retailer 20
-
$9,058 SGD
View
Most Expensive
B
MOH London
CE8DDD0F8 · Nov 1
$9,219 SGD
£5,664 GBP
View
20 more retailers have this diamond
Prices start from $4,281 SGDSave up to $4,938 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
$4,281 SGD