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Cushion|Natural|GIA

1.50ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 2557169428

Certificate GIA 2557169428

Diamond specifications and retailer prices

From $3,305 SGD
HK$20,200 HKD
As of November 1, 2026
Save $3,806 SGD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,138 SGD at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557169428. Listed at 20 retailers as of November 1, 2026, with a 115% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557169428
Dimensions7.25 × 5.79 × 3.98 mm
L/W Ratio1.25
Top View
7.25 mm5.79 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557169428
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.7%

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 1
Current: $4,159 SGD|Low: $3,303 SGD|High: $7,830 SGD|Avg: $4,620 SGD|-8.0%
Retailer 1
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
Wholesale Diamonds Direct
November 2, 2026
Retailer 2$3,305 SGD
Retailer 18$3,353 SGD
Retailer 15$3,596 SGD
Retailer 13$3,614 SGD
Retailer 7$3,688 SGD
Retailer 9$3,899 SGD
Retailer 8$3,954 SGD
Retailer 17$3,972 SGD
Retailer 12$4,080 SGD
Retailer 16$4,104 SGD
Retailer 1$4,159 SGD
Retailer 6$4,490 SGD
Retailer 14$4,518 SGD
Retailer 5$4,550 SGD
Retailer 10$4,969 SGD
Retailer 11$5,061 SGD
Retailer 4$5,444 SGD
Retailer 3$7,111 SGD
Wholesale Diamonds Direct$7,138 SGD

22 data points across 19 retailers

20 retailers$3,305 SGD to $7,111 SGD

A
Cheapest Retailer
-
$3,305 SGD
HK$20,200 HKD
A
Retailer 2
-
$3,353 SGD
$2,623 USD
View
A
Retailer 3
-
$3,596 SGD
$2,813 USD
View
A
Retailer 4
-
$3,614 SGD
$2,827 USD
View
Final sale: no returns
A
Retailer 5
-
$3,688 SGD
$2,885 USD
View
A
Retailer 6
-
$3,899 SGD
$3,050 USD
View
A
Retailer 7
-
$3,954 SGD
$3,093 USD
View
A
Retailer 8
-
$3,972 SGD
A$4,780 AUD
View
A
Retailer 9
-
$4,080 SGD
$3,192 USD
View
A
Retailer 10
-
$4,104 SGD
$3,210 USD
View
A
Retailer 11
-
$4,159 SGD
£2,562 GBP
View
B+
Retailer 12
-
$4,490 SGD
$3,512 USD
View
B+
Retailer 13
-
$4,518 SGD
£2,783 GBP
View
B+
Retailer 14
-
$4,550 SGD
$3,559 USD
View
B+
Retailer 15
-
$4,951 SGD
A$5,958 AUD
View
Retailer 16
-
$4,969 SGD
A$5,979 AUD
View
Price last confirmed 24 days ago
B+
Retailer 17
-
$5,061 SGD
€3,770 EUR
View
B+
Retailer 18
-
$5,444 SGD
ZAR 68,790 ZAR
View
B
Retailer 19
-
$7,111 SGD
£4,380 GBP
View
Most Expensive
Wholesale Diamonds Direct
425964630 · Oct 23
$7,138 SGD
$5,584 USD
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from $3,305 SGDSave up to $3,806 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
$3,305 SGD