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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 2557770054

Certificate GIA 2557770054

Diamond specifications and retailer prices

From $6,816 CAD
As of November 4, 2026
Save $5,860 CAD (46%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,676 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557770054. Listed at 19 retailers as of November 4, 2026, with prices from $6,816 to $12,676, a $5,860 spread on the same certified stone. MOH London lists it at $12,676. 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
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.01°
Pavilion angle40.15°
OriginNatural
Grading LabGIA
CertificateGIA 2557770054
Dimensions10.07 × 5.44 × 3.55 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.07 mm5.44 mm1.20 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557770054
Side View
Table 59.0%Crown 41.01°Girdle: STK-VTKPavilion 40.15°Culet: NoneDepth 65.2%

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 4
Current: $12,676 CAD|Low: $6,227 CAD|High: $12,864 CAD|Avg: $8,561 CAD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 24
November 6, 2026
Retailer 15$6,227 CAD
Retailer 12$6,617 CAD
Retailer 8$6,816 CAD
Retailer 9$7,314 CAD
Retailer 6$7,722 CAD
Retailer 24$7,786 CAD
Retailer 17$7,842 CAD
Retailer 22$8,147 CAD
Retailer 19$8,195 CAD
Retailer 3$8,212 CAD
Retailer 2$8,369 CAD
Retailer 11$8,411 CAD
Retailer 7$8,572 CAD
Retailer 5$8,735 CAD
Retailer 23$8,735 CAD
Retailer 4$9,016 CAD
Retailer 21$9,018 CAD
Retailer 13$9,125 CAD
Retailer 18$9,374 CAD
Retailer 10$9,514 CAD
Retailer 16$10,225 CAD
Retailer 20$10,526 CAD
Retailer 14$10,810 CAD
MOH London$12,676 CAD

20 data points across 24 retailers

19 retailers$6,816 CAD to $12,676 CAD

B+
Cheapest Retailer
-
$6,816 CAD
B
Retailer 2
-
$7,314 CAD
View
B
Retailer 3
-
$7,722 CAD
View
B
Retailer 4
-
$7,786 CAD
View
Retailer 5
-
$7,815 CAD
View
Price last confirmed 30 days ago
B
Retailer 6
-
$8,147 CAD
View
B
Retailer 7
-
$8,195 CAD
View
B
Retailer 8
-
$8,212 CAD
View
B
Retailer 9
-
$8,369 CAD
View
Retailer 10
-
$8,572 CAD
View
Price last confirmed 34 days ago
B
Retailer 11
-
$8,735 CAD
View
B
Retailer 12
-
$8,735 CAD
View
B
Retailer 13
-
$9,016 CAD
View
B
Retailer 14
-
$9,018 CAD
View
B
Retailer 15
-
$9,125 CAD
View
B
Retailer 16
-
$9,374 CAD
View
Retailer 17
-
$9,514 CAD
View
Price last confirmed 29 days ago
B
Retailer 18
-
$10,526 CAD
View
Most Expensive
B
MOH London
3DCC2BDE9 · Nov 4
$12,676 CAD
£7,096 GBP
View
18 more retailers have this diamond
Prices start from $6,816 CADSave up to $5,860 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 Marquise
$6,816 CAD