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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2557877511

Certificate GIA 2557877511

Diamond specifications and retailer prices

From $4,182 CAD
As of November 6, 2026
Save $5,598 CAD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,780 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 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 2557877511. Listed at 19 retailers as of November 5, 2026, with prices from $4,182 to $9,780, a $5,598 spread on the same certified stone. NZ Jewellers lists it at $9,780. 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557877511
Dimensions10.35 × 5.44 × 3.47 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Cavity, Needle
Top View
10.35 mm5.44 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557877511
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 63.9%

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: $9,780 CAD|Low: $4,182 CAD|High: $9,780 CAD|Avg: $6,077 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 2$4,182 CAD
Retailer 13$5,227 CAD
Retailer 4$5,331 CAD
Retailer 7$5,519 CAD
Retailer 3$5,614 CAD
Retailer 11$5,614 CAD
Retailer 12$5,614 CAD
Retailer 9$5,652 CAD
Retailer 5$5,725 CAD
Retailer 6$5,957 CAD
Retailer 8$6,158 CAD
Retailer 14$6,477 CAD
Retailer 10$9,386 CAD
NZ Jewellers$9,780 CAD

30 data points across 14 retailers

19 retailers$4,182 CAD to $9,780 CAD

A
Cheapest Retailer
-
$4,182 CAD
B+
Retailer 2
-
$4,462 CAD
View
Final sale: no returns
B+
Retailer 3
-
$4,666 CAD
View
B+
Retailer 4
-
$4,940 CAD
View
B+
Retailer 5
-
$5,227 CAD
View
B+
Retailer 6
-
$5,331 CAD
View
B+
Retailer 7
-
$5,519 CAD
View
B
Retailer 8
-
$5,614 CAD
View
B
Retailer 9
-
$5,614 CAD
View
Retailer 10
-
$5,614 CAD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$5,652 CAD
View
B
Retailer 12
-
$5,725 CAD
View
B
Retailer 13
-
$5,819 CAD
View
B
Retailer 14
-
$5,957 CAD
View
B
Retailer 15
-
$5,978 CAD
View
B+
Retailer 16
-
$6,158 CAD
View
B
Retailer 17
-
$6,477 CAD
View
B
Retailer 18
-
$9,386 CAD
View
Most Expensive
C
NZ Jewellers
c2a31624-9175-4791-8f74-0e7976ecf87d · Nov 5
$9,780 CAD
$6,953 USD
View
18 more retailers have this diamond
Prices start from $4,182 CADSave up to $5,598 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
$4,182 CAD