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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6541605256

Certificate GIA 6541605256

Diamond specifications and retailer prices

From $3,847 SGD
HK$23,500 HKD
As of November 2, 2026
Save $4,307 SGD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $8,153 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541605256. Listed at 22 retailers as of November 1, 2026, with prices from $3,847 to $8,153, a $4,307 spread on the same certified stone. MOH London lists it at $8,153. 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
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 6541605256
Dimensions6.78 × 6.57 × 4.38 mm
L/W Ratio1.03
Top View
6.78 mm6.57 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541605256
Side View
Table 66.0%CrownGirdle: THK-VTKPavilion 39°Culet: NoneDepth 66.7%

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 2
Current: $8,153 SGD|Low: $3,781 SGD|High: $8,266 SGD|Avg: $4,972 SGD|-1.4%
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 2, 2026
Retailer 13$3,847 SGD
Retailer 3$3,856 SGD
Retailer 19$4,059 SGD
Retailer 6$4,116 SGD
Retailer 17$4,144 SGD
Retailer 10$4,291 SGD
Retailer 4$4,359 SGD
Retailer 9$4,375 SGD
Retailer 16$4,630 SGD
Retailer 14$4,703 SGD
Retailer 2$4,706 SGD
Retailer 11$4,861 SGD
Retailer 7$4,967 SGD
Retailer 18$5,070 SGD
Retailer 12$5,091 SGD
Retailer 15$5,801 SGD
Retailer 5$6,042 SGD
Retailer 8$7,976 SGD
MOH London$8,153 SGD

19 data points across 19 retailers

22 retailers$3,847 SGD to $8,153 SGD

A
Cheapest Retailer
-
$3,847 SGD
HK$23,500 HKD
A
Retailer 2
-
$3,856 SGD
$3,015 USD
View
A
Retailer 3
-
$4,059 SGD
$3,174 USD
View
A
Retailer 4
-
$4,116 SGD
$3,219 USD
View
A
Retailer 5
-
$4,144 SGD
$3,240 USD
View
Final sale: no returns
A
Retailer 6
-
$4,291 SGD
$3,355 USD
View
A
Retailer 7
-
$4,359 SGD
€3,246 EUR
View
A
Retailer 8
-
$4,375 SGD
$3,421 USD
View
A
Retailer 9
-
$4,630 SGD
$3,620 USD
View
A
Retailer 10
-
$4,703 SGD
£2,895 GBP
View
A
Retailer 11
-
$4,706 SGD
$3,680 USD
View
A
Retailer 12
-
$4,861 SGD
View
Retailer 13
-
$4,967 SGD
$3,884 USD
View
Price last confirmed 13 days ago
Retailer 14
-
$5,050 SGD
$3,949 USD
View
Price last confirmed 12 days ago
A
Retailer 15
-
$5,070 SGD
£3,121 GBP
View
A
Retailer 16
-
$5,091 SGD
$3,981 USD
View
A
Retailer 17
-
$5,327 SGD
A$6,408 AUD
View
Retailer 18
-
$5,398 SGD
A$6,493 AUD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
$5,801 SGD
€4,320 EUR
View
B+
Retailer 20
-
$6,042 SGD
ZAR 76,327 ZAR
View
Retailer 21
-
$7,976 SGD
$6,237 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
8B8AE58D9 · Nov 1
$8,153 SGD
£5,020 GBP
View
21 more retailers have this diamond
Prices start from $3,847 SGDSave up to $4,307 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
$3,847 SGD