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Cushion|Natural|GIA

1.50ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 5403156383

Certificate GIA 5403156383

Diamond specifications and retailer prices

From $3,771 SGD
$2,948 USD
As of October 31, 2026
Save $4,436 SGD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,207 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 J 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 5403156383. Listed at 20 retailers as of October 31, 2026, with prices from $3,771 to $8,207, a $4,436 spread on the same certified stone. MOH London lists it at $8,207. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5403156383
Dimensions6.67 × 6.10 × 4.26 mm
L/W Ratio1.09
Top View
6.67 mm6.10 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5403156383
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.8%

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: Oct 31
Current: $8,207 SGD|Low: $3,771 SGD|High: $8,295 SGD|Avg: $5,021 SGD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9$3,771 SGD
Retailer 11$3,856 SGD
Retailer 10$4,069 SGD
Retailer 7$4,086 SGD
Retailer 12$4,104 SGD
Retailer 4$4,445 SGD
Retailer 2$4,722 SGD
Retailer 6$5,020 SGD
Retailer 3$5,257 SGD
Retailer 5$5,743 SGD
Retailer 8$6,032 SGD
MOH London$8,207 SGD

35 data points across 12 retailers

20 retailers$3,771 SGD to $8,207 SGD

A
Cheapest Retailer
-
$3,771 SGD
$2,948 USD
B+
Retailer 2
-
$3,856 SGD
$3,015 USD
View
B+
Retailer 3
-
$3,947 SGD
$3,086 USD
View
B+
Retailer 4
-
$4,069 SGD
$3,182 USD
View
B+
Retailer 5
-
$4,086 SGD
A$4,915 AUD
View
B+
Retailer 6
-
$4,104 SGD
$3,209 USD
View
Final sale: no returns
B+
Retailer 7
-
$4,284 SGD
$3,350 USD
View
B+
Retailer 8
-
$4,412 SGD
$3,450 USD
View
B+
Retailer 9
-
$4,457 SGD
$3,485 USD
View
B+
Retailer 10
-
$4,722 SGD
£2,907 GBP
View
B+
Retailer 11
-
$4,760 SGD
$3,722 USD
View
B
Retailer 12
-
$5,020 SGD
£3,091 GBP
View
B
Retailer 13
-
$5,039 SGD
$3,940 USD
View
B
Retailer 14
-
$5,039 SGD
$3,940 USD
View
B
Retailer 15
-
$5,205 SGD
$4,070 USD
View
Retailer 16
-
$5,257 SGD
A$6,324 AUD
View
Price last confirmed 24 days ago
Retailer 17
-
$5,556 SGD
$4,344 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$5,743 SGD
€4,277 EUR
View
B
Retailer 19
-
$6,032 SGD
ZAR 76,201 ZAR
View
Most Expensive
C
MOH London
788435C68 · Nov 1
$8,207 SGD
£5,053 GBP
View
19 more retailers have this diamond
Prices start from $3,771 SGDSave up to $4,436 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
$3,771 SGD