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Marquise|Natural|GIA

1.20ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 6542707387

Certificate GIA 6542707387

Diamond specifications and retailer prices

From $3,218 CAD
As of November 5, 2026
Save $5,000 CAD (61%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,218 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise 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 6542707387. Listed at 14 retailers as of November 5, 2026, with prices from $3,218 to $8,218, a $5,000 spread on the same certified stone. NZ Jewellers lists it at $8,218. 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
FluorescenceStrong
Crown angle37.15°
Pavilion angle39.09°
OriginNatural
Grading LabGIA
CertificateGIA 6542707387
Dimensions10.60 × 5.57 × 3.44 mm
L/W Ratio1.90
Top View
10.60 mm5.57 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6542707387
Side View
Table 58.0%Crown 37.15°Girdle: STK-THKPavilion 39.09°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $8,218 CAD|Low: $3,218 CAD|High: $8,218 CAD|Avg: $4,428 CAD
NZ Jewellers
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
November 6, 2026
Retailer 6$3,218 CAD
Retailer 14$3,526 CAD
Retailer 3$3,561 CAD
Retailer 4$3,561 CAD
Retailer 12$3,726 CAD
Retailer 2$3,813 CAD
Retailer 9$3,950 CAD
Retailer 5$3,980 CAD
Retailer 13$4,109 CAD
Retailer 8$4,135 CAD
Retailer 7$4,575 CAD
Retailer 10$4,797 CAD
Retailer 11$6,867 CAD
NZ Jewellers$8,218 CAD

29 data points across 14 retailers

14 retailers$3,218 CAD to $8,218 CAD

A
Cheapest Retailer
-
$3,218 CAD
B+
Retailer 2
-
$3,526 CAD
View
Retailer 3
-
$3,561 CAD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$3,561 CAD
View
B+
Retailer 5
-
$3,726 CAD
View
B+
Retailer 6
-
$3,813 CAD
View
B+
Retailer 7
-
$3,950 CAD
View
B+
Retailer 8
-
$3,980 CAD
View
B+
Retailer 9
-
$4,109 CAD
View
B+
Retailer 10
-
$4,135 CAD
View
B
Retailer 11
-
$4,575 CAD
View
B
Retailer 12
-
$4,797 CAD
View
B
Retailer 13
-
$6,867 CAD
View
Most Expensive
C
NZ Jewellers
fcd1d8e7-efd8-4cc6-a80c-c6ef134f29a9 · Nov 5
$8,218 CAD
$5,884 USD
View
13 more retailers have this diamond
Prices start from $3,218 CADSave up to $5,000 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
$3,218 CAD