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Cushion|Natural|GIA

1.15ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5556516747

Certificate GIA 5556516747

Diamond specifications and retailer prices

From $1,914 CAD
As of November 6, 2026
Save $1,710 CAD (47%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,625 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.15ct natural cushion diamond

This 1.15ct natural cushion sits in the classic one-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 5556516747. Listed at 4 retailers as of November 4, 2026, with prices from $1,914 to $3,625, a $1,710 spread on the same certified stone. MOH London lists it at $3,625. 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

1.15
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556516747
Dimensions6.85 × 5.23 × 3.59 mm
L/W Ratio1.31
Key to symbols
Crystal, Feather
Top View
6.85 mm5.23 mm1.15 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556516747
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

Caratlytics Score

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

Last verified: Nov 6
Current: $3,625 CAD|Low: $1,710 CAD|High: $4,139 CAD|Avg: $2,831 CAD|-11.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$1,914 CAD
Retailer 3$2,246 CAD
Retailer 2$2,874 CAD
MOH London$3,625 CAD

29 data points across 4 retailers

4 retailers$1,914 CAD to $3,625 CAD

A
Cheapest Retailer
-
$1,914 CAD
Final sale: no returns
A
Retailer 2
-
$2,246 CAD
View
B+
Retailer 3
-
$2,874 CAD
View
Most Expensive
B
MOH London
A445A4533 · Nov 4
$3,625 CAD
£2,029 GBP
View
3 more retailers have this diamond
Prices start from $1,914 CADSave up to $1,710 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
1.15ct Cushion
$1,914 CAD