Cushion|Natural|GIA

1.54ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6542639501

Certificate GIA 6542639501

Diamond specifications and retailer prices

From $1,715 USD
As of November 6, 2026
Save $2,673 USD (61%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,388 USD 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 $1,715 to $4,388, a $2,673 spread on the same certified stone. MOH London lists it at $4,388. 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
Color
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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Price History

Last verified: Nov 6
Current: $4,388 USD|Low: $1,715 USD|High: $4,719 USD|Avg: $2,911 USD|-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$1,715 USD
Retailer 2$2,058 USD
Retailer 11$2,162 USD
Retailer 14$2,380 USD
Retailer 13$2,405 USD
Retailer 15$2,422 USD
Retailer 4$2,429 USD
Retailer 5$2,495 USD
Retailer 9$2,730 USD
Retailer 12$2,768 USD
Retailer 7$2,772 USD
Retailer 6$2,908 USD
Retailer 3$3,056 USD
Retailer 8$3,699 USD
MOH London$4,388 USD

23 data points across 15 retailers

17 retailers$1,715 USD to $4,388 USD

A
Cheapest Retailer
-
$1,715 USD
A
Retailer 2
-
$2,058 USD
View
Final sale: no returns
A
Retailer 3
-
$2,162 USD
View
A
Retailer 4
-
$2,380 USD
View
A
Retailer 5
-
$2,405 USD
View
A
Retailer 6
-
$2,422 USD
View
A
Retailer 7
-
$2,429 USD
View
A
Retailer 8
-
$2,495 USD
View
A
Retailer 9
-
$2,730 USD
View
A
Retailer 10
-
$2,768 USD
View
A
Retailer 11
-
$2,772 USD
View
A
Retailer 12
-
$2,772 USD
View
B+
Retailer 13
-
$2,904 USD
View
Retailer 14
-
$2,908 USD
View
Price last confirmed 18 days ago
A
Retailer 15
-
$3,056 USD
View
B+
Retailer 16
-
$3,699 USD
View
Most Expensive
B+
MOH London
09CFFAEBB · Nov 2
$4,388 USD
£3,455 GBP
View
16 more retailers have this diamond
Prices start from $1,715 USDSave up to $2,673 USD

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
$1,715 USD