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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1553442255

Certificate GIA 1553442255

Diamond specifications and retailer prices

From $4,665 SGD
HK$28,500 HKD
As of November 2, 2026
Save $5,057 SGD (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,867 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 I 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 1553442255. Listed at 21 retailers as of November 1, 2026, with a 108% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553442255
Dimensions7.50 × 5.99 × 4.12 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.50 mm5.99 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553442255
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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 2
Current: $4,665 SGD|Low: $4,600 SGD|High: $10,436 SGD|Avg: $6,265 SGD|-3.4%
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 1$4,665 SGD
Retailer 2$4,674 SGD
Retailer 16$4,912 SGD
Retailer 14$5,173 SGD
Retailer 4$5,232 SGD
Retailer 9$5,293 SGD
Retailer 7$5,319 SGD
Retailer 10$5,416 SGD
Retailer 18$5,461 SGD
Retailer 17$5,576 SGD
Retailer 13$5,589 SGD
Retailer 11$5,870 SGD
Retailer 6$6,050 SGD
Retailer 15$6,152 SGD
Retailer 8$6,180 SGD
Retailer 12$6,999 SGD
Retailer 5$7,757 SGD
Retailer 3$9,722 SGD
Wholesale Diamonds Direct$9,867 SGD

20 data points across 19 retailers

21 retailers$4,665 SGD to $9,722 SGD

A
Cheapest Retailer
-
$4,665 SGD
HK$28,500 HKD
A
Retailer 2
-
$4,674 SGD
$3,655 USD
View
A
Retailer 3
-
$4,912 SGD
$3,841 USD
View
A
Retailer 4
-
$5,173 SGD
$4,045 USD
View
Final sale: no returns
A
Retailer 5
-
$5,232 SGD
€3,897 EUR
View
A
Retailer 6
-
$5,293 SGD
$4,139 USD
View
A
Retailer 7
-
$5,319 SGD
$4,159 USD
View
A
Retailer 8
-
$5,416 SGD
$4,235 USD
View
A
Retailer 9
-
$5,461 SGD
A$6,570 AUD
View
A
Retailer 10
-
$5,576 SGD
$4,360 USD
View
A
Retailer 11
-
$5,589 SGD
$4,370 USD
View
A
Retailer 12
-
$5,870 SGD
£3,614 GBP
View
B+
Retailer 13
-
$6,050 SGD
$4,731 USD
View
B+
Retailer 14
-
$6,152 SGD
£3,788 GBP
View
Retailer 15
-
$6,180 SGD
$4,832 USD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
$6,457 SGD
A$7,768 AUD
View
Retailer 17
-
$6,568 SGD
A$7,901 AUD
View
Price last confirmed 23 days ago
B+
Retailer 18
-
$6,999 SGD
€5,212 EUR
View
B+
Retailer 19
-
$7,757 SGD
ZAR 97,981 ZAR
View
B
Retailer 20
-
$9,722 SGD
£5,986 GBP
View
Most Expensive
Wholesale Diamonds Direct
253138994 · Oct 23
$9,867 SGD
$7,715 USD
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from $4,665 SGDSave up to $5,057 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
$4,665 SGD