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Cushion|Natural|GIA

1.51ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 2566006105

Certificate GIA 2566006105

Diamond specifications and retailer prices

From $2,556 CAD
As of November 6, 2026
Save $3,493 CAD (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $6,049 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566006105. Listed at 7 retailers as of November 4, 2026, with prices from $2,556 to $6,049, a $3,493 spread on the same certified stone. MOH London lists it at $6,049. 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

1.51
Carat
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566006105
Dimensions7.52 × 5.93 × 4.11 mm
L/W Ratio1.27
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.52 mm5.93 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566006105
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 69.3%

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 6
Current: $6,049 CAD|Low: $2,521 CAD|High: $6,138 CAD|Avg: $3,791 CAD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$2,556 CAD
Retailer 7$3,197 CAD
Retailer 3$3,449 CAD
Retailer 5$3,542 CAD
Retailer 2$3,576 CAD
Retailer 4$4,420 CAD
MOH London$6,049 CAD

32 data points across 7 retailers

7 retailers$2,556 CAD to $6,049 CAD

A
Cheapest Retailer
-
$2,556 CAD
B+
Retailer 2
-
$3,197 CAD
View
A
Retailer 3
-
$3,449 CAD
View
B+
Retailer 4
-
$3,542 CAD
View
B+
Retailer 5
-
$3,576 CAD
View
B+
Retailer 6
-
$4,420 CAD
View
Most Expensive
B
MOH London
051E64C1E · Nov 4
$6,049 CAD
£3,386 GBP
View
6 more retailers have this diamond
Prices start from $2,556 CADSave up to $3,493 CAD

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
1.51ct Cushion
$2,556 CAD