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Cushion|Natural|GIA

1.30ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 5231921674

Certificate GIA 5231921674

Diamond specifications and retailer prices

From $2,529 CAD
As of November 6, 2026
Save $1,792 CAD (41%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,321 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 5231921674. Listed at 5 retailers as of November 4, 2026, with prices from $2,529 to $4,321, a $1,792 spread on the same certified stone. MOH London lists it at $4,321. 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

1.30
Carat
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231921674
Dimensions6.93 × 5.57 × 3.79 mm
L/W Ratio1.24
Top View
6.93 mm5.57 mm1.30 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231921674
Side View
Table 61.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $4,321 CAD|Low: $2,473 CAD|High: $4,384 CAD|Avg: $3,156 CAD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$2,473 CAD
Retailer 2$2,529 CAD
Retailer 4$2,744 CAD
Retailer 3$3,358 CAD
MOH London$4,321 CAD

41 data points across 5 retailers

5 retailers$2,529 CAD to $4,321 CAD

Retailer 1
-
$2,473 CAD
Price last confirmed 12 days ago
A
Retailer 2
-
$2,529 CAD
View
A
Retailer 3
-
$2,744 CAD
View
B+
Retailer 4
-
$3,358 CAD
View
Most Expensive
B
MOH London
57D7BD527 · Nov 4
$4,321 CAD
£2,419 GBP
View
4 more retailers have this diamond
Prices start from $2,529 CADSave up to $1,792 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
1.30ct Cushion
$2,529 CAD