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Marquise|Natural|GIA

1.20ct G SI2 Marquise Natural Diamond

GD • G/SI2 • GIA 6551200456

Certificate GIA 6551200456

Diamond specifications and retailer prices

From $4,652 CAD
As of November 6, 2026
Save $5,173 CAD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,825 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551200456. Listed at 21 retailers as of November 4, 2026, with prices from $4,652 to $9,825, a $5,173 spread on the same certified stone. MOH London lists it at $9,825. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
G
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle43.77°
Pavilion angle40.27°
OriginNatural
Grading LabGIA
CertificateGIA 6551200456
Dimensions9.73 × 5.34 × 3.54 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.73 mm5.34 mm1.20 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551200456
Side View
Table 64.0%Crown 43.77°Girdle: MED-VTKPavilion 40.27°Culet: NoneDepth 66.2%

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: $9,825 CAD|Low: $3,322 CAD|High: $9,825 CAD|Avg: $4,912 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 12$3,322 CAD
Retailer 11$4,452 CAD
Retailer 15$4,652 CAD
Retailer 3$4,757 CAD
Retailer 10$4,767 CAD
Retailer 9$4,782 CAD
Retailer 16$4,874 CAD
Retailer 6$4,879 CAD
Retailer 18$4,930 CAD
Retailer 19$5,172 CAD
Retailer 13$5,590 CAD
Retailer 7$5,926 CAD
Retailer 2$6,082 CAD
Retailer 17$6,265 CAD
Retailer 4$6,316 CAD
Retailer 5$6,316 CAD
Retailer 8$6,527 CAD
Retailer 14$6,566 CAD
Retailer 20$8,945 CAD
MOH London$9,825 CAD

33 data points across 20 retailers

21 retailers$4,652 CAD to $9,825 CAD

Retailer 1
-
$4,452 CAD
Price last confirmed 16 days ago
A
Retailer 2
-
$4,652 CAD
View
B+
Retailer 3
-
$4,757 CAD
View
Retailer 4
-
$4,767 CAD
View
Price last confirmed 17 days ago
Retailer 5
-
$4,782 CAD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$4,874 CAD
View
B+
Retailer 7
-
$4,879 CAD
View
B+
Retailer 8
-
$4,930 CAD
View
B+
Retailer 9
-
$5,127 CAD
View
B+
Retailer 10
-
$5,172 CAD
View
Final sale: no returns
B+
Retailer 11
-
$5,349 CAD
View
B+
Retailer 12
-
$5,590 CAD
View
B
Retailer 13
-
$5,926 CAD
View
B
Retailer 14
-
$6,082 CAD
View
B
Retailer 15
-
$6,265 CAD
View
B
Retailer 16
-
$6,316 CAD
View
B
Retailer 17
-
$6,316 CAD
View
B
Retailer 18
-
$6,527 CAD
View
B
Retailer 19
-
$6,566 CAD
View
C
Retailer 20
-
$8,945 CAD
View
Most Expensive
C
MOH London
FEED6857D · Nov 4
$9,825 CAD
£5,500 GBP
View
20 more retailers have this diamond
Prices start from $4,652 CADSave up to $5,173 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 Marquise
$4,652 CAD