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Marquise|Natural|GIA

1.20ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 6545918778

Certificate GIA 6545918778

Diamond specifications and retailer prices

From $5,050 CAD
As of November 5, 2026
Save $5,794 CAD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,843 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545918778. Listed at 20 retailers as of November 4, 2026, with prices from $5,050 to $10,843, a $5,794 spread on the same certified stone. MOH London lists it at $10,843. 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
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545918778
Dimensions10.36 × 5.54 × 3.53 mm
L/W Ratio1.87
Top View
10.36 mm5.54 mm1.20 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545918778
Side View
Table 63.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 63.8%

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 5
Current: $10,843 CAD|Low: $5,050 CAD|High: $11,563 CAD|Avg: $6,924 CAD|-5.2%
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
November 6, 2026
Retailer 16$5,050 CAD
Retailer 6$5,334 CAD
Retailer 2$5,387 CAD
Retailer 4$5,441 CAD
Retailer 7$5,455 CAD
Retailer 13$5,645 CAD
Retailer 5$5,707 CAD
Retailer 11$5,747 CAD
Retailer 3$6,148 CAD
Retailer 17$6,286 CAD
Retailer 9$6,490 CAD
Retailer 15$6,681 CAD
Retailer 12$6,712 CAD
Retailer 8$6,963 CAD
Retailer 18$6,963 CAD
Retailer 19$7,188 CAD
Retailer 14$7,248 CAD
Retailer 10$9,877 CAD
MOH London$10,843 CAD

24 data points across 19 retailers

20 retailers$5,050 CAD to $10,843 CAD

A
Cheapest Retailer
-
$5,050 CAD
B+
Retailer 2
-
$5,247 CAD
View
B+
Retailer 3
-
$5,334 CAD
View
B+
Retailer 4
-
$5,387 CAD
View
B+
Retailer 5
-
$5,441 CAD
View
B+
Retailer 6
-
$5,455 CAD
View
B+
Retailer 7
-
$5,643 CAD
View
B+
Retailer 8
-
$5,645 CAD
View
B+
Retailer 9
-
$5,707 CAD
View
Final sale: no returns
B+
Retailer 10
-
$6,148 CAD
View
B+
Retailer 11
-
$6,286 CAD
View
B
Retailer 12
-
$6,490 CAD
View
B+
Retailer 13
-
$6,681 CAD
View
B+
Retailer 14
-
$6,712 CAD
View
B+
Retailer 15
-
$6,963 CAD
View
B+
Retailer 16
-
$6,963 CAD
View
B
Retailer 17
-
$7,188 CAD
View
B+
Retailer 18
-
$7,248 CAD
View
B
Retailer 19
-
$9,877 CAD
View
Most Expensive
B
MOH London
DF1557164 · Nov 4
$10,843 CAD
£6,070 GBP
View
19 more retailers have this diamond
Prices start from $5,050 CADSave up to $5,794 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
$5,050 CAD