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Cushion|Natural|GIA

1.54ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6561590064

Certificate GIA 6561590064

Diamond specifications and retailer prices

From $4,207 SGD
HK$25,700 HKD
As of November 1, 2026
Save $4,840 SGD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,047 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.54ct natural cushion diamond

This 1.54ct 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 6561590064. Listed at 9 retailers as of November 1, 2026, with prices from $4,207 to $9,047, a $4,840 spread on the same certified stone. MOH London lists it at $9,047. 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

1.54
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561590064
Dimensions7.88 × 5.95 × 4.08 mm
L/W Ratio1.32
Key to symbols
Crystal, Cloud, Needle
Top View
7.88 mm5.95 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561590064
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NDepth 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: $9,047 SGD|Low: $4,158 SGD|High: $9,230 SGD|Avg: $5,811 SGD|-2.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$4,207 SGD
Retailer 8$4,686 SGD
Retailer 5$4,855 SGD
Retailer 6$5,048 SGD
Retailer 9$5,376 SGD
Retailer 2$5,389 SGD
Retailer 3$6,529 SGD
Retailer 4$8,000 SGD
MOH London$9,047 SGD

8 data points across 9 retailers

9 retailers$4,207 SGD to $9,047 SGD

A
Cheapest Retailer
-
$4,207 SGD
HK$25,700 HKD
A
Retailer 2
-
$4,686 SGD
$3,664 USD
View
A
Retailer 3
-
$4,855 SGD
€3,615 EUR
View
A
Retailer 4
-
$5,048 SGD
$3,947 USD
View
A
Retailer 5
-
$5,376 SGD
View
A
Retailer 6
-
$5,389 SGD
£3,318 GBP
View
B+
Retailer 7
-
$6,529 SGD
€4,862 EUR
View
B
Retailer 8
-
$8,000 SGD
$6,255 USD
View
Most Expensive
B
MOH London
464636367 · Nov 2
$9,047 SGD
£5,570 GBP
View
8 more retailers have this diamond
Prices start from $4,207 SGDSave up to $4,840 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
1.54ct Cushion
$4,207 SGD