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Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1555689564

Certificate GIA 1555689564

Diamond specifications and retailer prices

From $3,293 CAD
As of November 6, 2026
Save $3,151 CAD (49%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,443 CAD at MOH London · As of November 2, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct 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 1555689564. Listed at 8 retailers as of November 2, 2026, with prices from $3,293 to $6,443, a $3,151 spread on the same certified stone. MOH London lists it at $6,443. 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

1.20
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555689564
Dimensions7.26 × 5.38 × 3.70 mm
L/W Ratio1.35
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Needle
Top View
7.26 mm5.38 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555689564
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,443 CAD|Low: $2,459 CAD|High: $6,520 CAD|Avg: $3,505 CAD|+44.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$2,491 CAD
Retailer 11$2,552 CAD
Retailer 10$2,788 CAD
Retailer 8$3,293 CAD
Retailer 6$3,477 CAD
Retailer 2$3,533 CAD
Retailer 7$3,636 CAD
Retailer 9$3,875 CAD
Retailer 4$4,123 CAD
Retailer 5$4,488 CAD
MOH London$6,443 CAD

35 data points across 11 retailers

8 retailers$3,293 CAD to $6,443 CAD

B+
Cheapest Retailer
-
$3,293 CAD
B+
Retailer 2
-
$3,477 CAD
View
B+
Retailer 3
-
$3,533 CAD
View
B
Retailer 4
-
$3,636 CAD
View
B
Retailer 5
-
$3,875 CAD
View
B
Retailer 6
-
$4,123 CAD
View
B
Retailer 7
-
$4,488 CAD
View
Most Expensive
B
MOH London
57F3EF09A · Nov 2
$6,443 CAD
£3,607 GBP
View
7 more retailers have this diamond
Prices start from $3,293 CADSave up to $3,151 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.

B+
1.20ct Cushion
$3,293 CAD