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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6551442183

Certificate GIA 6551442183

Diamond specifications and retailer prices

From $3,485 SGD
HK$21,300 HKD
As of November 2, 2026
Save $4,116 SGD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,602 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 6551442183. Listed at 21 retailers as of November 1, 2026, with prices from $3,485 to $7,602, a $4,116 spread on the same certified stone. MOH London lists it at $7,602. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551442183
Dimensions7.24 × 5.79 × 3.98 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.24 mm5.79 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551442183
Side View
Table 69.0%CrownGirdle: STK-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: $7,602 SGD|Low: $3,420 SGD|High: $8,236 SGD|Avg: $4,964 SGD|-7.7%
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 2$3,485 SGD
Retailer 18$3,735 SGD
Retailer 8$3,863 SGD
Retailer 6$3,867 SGD
Retailer 16$3,868 SGD
Retailer 3$3,984 SGD
Retailer 10$4,136 SGD
Retailer 15$4,217 SGD
Retailer 19$4,359 SGD
Retailer 12$4,390 SGD
Retailer 4$4,404 SGD
Retailer 17$4,460 SGD
Retailer 11$4,500 SGD
Retailer 14$5,415 SGD
Retailer 5$5,839 SGD
Retailer 7$6,028 SGD
Retailer 13$6,533 SGD
Retailer 9$7,501 SGD
MOH London$7,602 SGD

19 data points across 19 retailers

21 retailers$3,485 SGD to $7,602 SGD

A
Cheapest Retailer
-
$3,485 SGD
HK$21,300 HKD
A
Retailer 2
-
$3,735 SGD
$2,922 USD
View
A
Retailer 3
-
$3,863 SGD
$3,022 USD
View
A
Retailer 4
-
$3,867 SGD
$3,025 USD
View
A
Retailer 5
-
$3,868 SGD
$3,026 USD
View
Final sale: no returns
A
Retailer 6
-
$3,984 SGD
€2,968 EUR
View
A
Retailer 7
-
$4,136 SGD
$3,235 USD
View
A
Retailer 8
-
$4,217 SGD
$3,299 USD
View
A
Retailer 9
-
$4,359 SGD
$3,410 USD
View
A
Retailer 10
-
$4,390 SGD
£2,704 GBP
View
A
Retailer 11
-
$4,404 SGD
$3,445 USD
View
A
Retailer 12
-
$4,460 SGD
£2,747 GBP
View
Retailer 13
-
$4,500 SGD
$3,520 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$5,051 SGD
A$6,078 AUD
View
A
Retailer 15
-
$5,415 SGD
€4,034 EUR
View
Retailer 16
-
$5,439 SGD
A$6,545 AUD
View
Price last confirmed 24 days ago
B+
Retailer 17
-
$5,839 SGD
ZAR 73,781 ZAR
View
B+
Retailer 18
-
$6,028 SGD
$4,715 USD
View
B+
Retailer 19
-
$6,533 SGD
$5,110 USD
View
Retailer 20
-
$7,501 SGD
$5,867 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
20437D1FD · Nov 1
$7,602 SGD
£4,682 GBP
View
20 more retailers have this diamond
Prices start from $3,485 SGDSave up to $4,116 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
$3,485 SGD