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Cushion|Natural|GIA

1.20ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1553750815

Certificate GIA 1553750815

Diamond specifications and retailer prices

From $2,646 CAD
As of November 6, 2026
Save $3,514 CAD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,159 CAD at MOH London · As of November 4, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553750815. Listed at 17 retailers as of November 4, 2026, with prices from $2,646 to $6,159, a $3,514 spread on the same certified stone. MOH London lists it at $6,159. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553750815
Dimensions7.02 × 5.24 × 3.60 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.02 mm5.24 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553750815
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.7%

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: $6,159 CAD|Low: $2,646 CAD|High: $6,242 CAD|Avg: $3,876 CAD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$2,646 CAD
Retailer 2$2,767 CAD
Retailer 6$3,089 CAD
Retailer 3$3,419 CAD
Retailer 9$3,525 CAD
Retailer 7$3,729 CAD
Retailer 5$4,301 CAD
Retailer 4$4,376 CAD
MOH London$6,159 CAD

26 data points across 9 retailers

17 retailers$2,646 CAD to $6,159 CAD

A
Cheapest Retailer
-
$2,646 CAD
A
Retailer 2
-
$2,767 CAD
View
A
Retailer 3
-
$3,089 CAD
View
B+
Retailer 4
-
$3,252 CAD
View
Final sale: no returns
B+
Retailer 5
-
$3,280 CAD
View
B+
Retailer 6
-
$3,284 CAD
View
B+
Retailer 7
-
$3,419 CAD
View
Retailer 8
-
$3,525 CAD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$3,684 CAD
View
B+
Retailer 10
-
$3,722 CAD
View
B+
Retailer 11
-
$3,729 CAD
View
B+
Retailer 12
-
$3,756 CAD
View
B+
Retailer 13
-
$3,826 CAD
View
Retailer 14
-
$3,948 CAD
View
Price last confirmed 31 days ago
B+
Retailer 15
-
$4,301 CAD
View
B
Retailer 16
-
$4,376 CAD
View
Most Expensive
B
MOH London
98F9CC2F9 · Nov 4
$6,159 CAD
£3,448 GBP
View
16 more retailers have this diamond
Prices start from $2,646 CADSave up to $3,514 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
1.20ct Cushion
$2,646 CAD