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Cushion|Natural|GIA

1.54ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6542639501

Certificate GIA 6542639501

Diamond specifications and retailer prices

From $2,198 SGD
As of November 6, 2026
Save $3,426 SGD (61%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,623 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542639501. Listed at 17 retailers as of November 2, 2026, with prices from $2,198 to $5,623, a $3,426 spread on the same certified stone. MOH London lists it at $5,623. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 6542639501
Dimensions7.19 × 6.23 × 4.35 mm
L/W Ratio1.15
Top View
7.19 mm6.23 mm1.54 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542639501
Side View
Table 66.0%CrownGirdle: STK-VTKPavilion 39°Culet: NoneDepth 69.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,623 SGD|Low: $2,198 SGD|High: $6,048 SGD|Avg: $3,731 SGD|-7.0%
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
November 6, 2026
Retailer 10$2,198 SGD
Retailer 2$2,638 SGD
Retailer 11$2,771 SGD
Retailer 14$3,050 SGD
Retailer 13$3,082 SGD
Retailer 15$3,104 SGD
Retailer 4$3,113 SGD
Retailer 5$3,198 SGD
Retailer 9$3,499 SGD
Retailer 12$3,547 SGD
Retailer 7$3,553 SGD
Retailer 6$3,727 SGD
Retailer 3$3,917 SGD
Retailer 8$4,741 SGD
MOH London$5,623 SGD

23 data points across 15 retailers

17 retailers$2,198 SGD to $5,623 SGD

A
Cheapest Retailer
-
$2,198 SGD
A
Retailer 2
-
$2,638 SGD
View
Final sale: no returns
A
Retailer 3
-
$2,771 SGD
View
A
Retailer 4
-
$3,050 SGD
View
A
Retailer 5
-
$3,082 SGD
View
A
Retailer 6
-
$3,104 SGD
View
A
Retailer 7
-
$3,113 SGD
View
A
Retailer 8
-
$3,198 SGD
View
A
Retailer 9
-
$3,499 SGD
View
A
Retailer 10
-
$3,547 SGD
View
A
Retailer 11
-
$3,553 SGD
View
A
Retailer 12
-
$3,553 SGD
View
B+
Retailer 13
-
$3,722 SGD
View
Retailer 14
-
$3,727 SGD
View
Price last confirmed 18 days ago
A
Retailer 15
-
$3,917 SGD
View
B+
Retailer 16
-
$4,741 SGD
View
Most Expensive
B+
MOH London
09CFFAEBB · Nov 2
$5,623 SGD
£3,455 GBP
View
16 more retailers have this diamond
Prices start from $2,198 SGDSave up to $3,426 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
$2,198 SGD