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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2566156667

Certificate GIA 2566156667

Diamond specifications and retailer prices

From $3,435 CAD
As of November 5, 2026
Save $2,588 CAD (43%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,023 CAD at Wholesale Diamonds Direct · As of November 3, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566156667. Listed at 10 retailers as of November 3, 2026, with prices from $3,435 to $6,023, a $2,588 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,023. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle37.99°
Pavilion angle37.89°
OriginNatural
Grading LabGIA
CertificateGIA 2566156667
Dimensions10.60 × 5.54 × 3.31 mm
L/W Ratio1.91
Culet sizeNone
Top View
10.60 mm5.54 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2566156667
Side View
Table 61.0%Crown 37.99°Girdle: VTN-THKPavilion 37.89°Culet: NoneDepth 59.8%

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: $5,683 CAD|Low: $3,415 CAD|High: $6,387 CAD|Avg: $4,451 CAD|+19.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 2$3,435 CAD
Retailer 5$3,647 CAD
Retailer 9$3,937 CAD
Retailer 4$4,006 CAD
Retailer 8$4,040 CAD
Retailer 6$4,389 CAD
Retailer 7$4,501 CAD
Retailer 3$4,653 CAD
Retailer 1$5,683 CAD
Wholesale Diamonds Direct$6,023 CAD

34 data points across 10 retailers

10 retailers$3,435 CAD to $6,023 CAD

A
Cheapest Retailer
-
$3,435 CAD
A
Retailer 2
-
$3,647 CAD
View
B+
Retailer 3
-
$3,937 CAD
View
A
Retailer 4
-
$4,006 CAD
View
A
Retailer 5
-
$4,040 CAD
View
B+
Retailer 6
-
$4,389 CAD
View
B+
Retailer 7
-
$4,501 CAD
View
B+
Retailer 8
-
$4,653 CAD
View
B
Retailer 9
-
$5,683 CAD
View
Most Expensive
B
Wholesale Diamonds Direct
348918947 · Nov 3
$6,023 CAD
$4,282 USD
View
9 more retailers have this diamond
Prices start from $3,435 CADSave up to $2,588 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
$3,435 CAD