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Marquise|Natural|GIA

1.20ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1565306355

Certificate GIA 1565306355

Diamond specifications and retailer prices

From $4,960 CAD
As of November 6, 2026
Save $6,634 CAD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,593 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565306355. Listed at 20 retailers as of November 5, 2026, with prices from $4,960 to $11,593, a $6,634 spread on the same certified stone. NZ Jewellers lists it at $11,593. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1565306355
Dimensions11.23 × 5.42 × 3.04 mm
L/W Ratio2.07
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
11.23 mm5.42 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1565306355
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 56.0%

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 6
Current: $4,960 CAD|Low: $4,960 CAD|High: $10,710 CAD|Avg: $7,066 CAD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1$4,960 CAD
Retailer 2$6,280 CAD
Retailer 4$6,455 CAD
Retailer 6$6,513 CAD
Retailer 9$6,673 CAD
Retailer 3$6,708 CAD
Retailer 11$6,724 CAD
Retailer 10$7,008 CAD
Retailer 5$7,065 CAD
Retailer 7$8,119 CAD
Retailer 8$10,569 CAD

30 data points across 11 retailers

20 retailers$4,960 CAD to $11,593 CAD

B+
Cheapest Retailer
-
$4,960 CAD
B+
Retailer 2
-
$5,296 CAD
View
Final sale: no returns
B
Retailer 3
-
$5,804 CAD
View
B+
Retailer 4
-
$6,082 CAD
View
B
Retailer 5
-
$6,280 CAD
View
B+
Retailer 6
-
$6,455 CAD
View
B+
Retailer 7
-
$6,513 CAD
View
Retailer 8
-
$6,655 CAD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$6,655 CAD
View
B
Retailer 10
-
$6,655 CAD
View
B
Retailer 11
-
$6,673 CAD
View
Retailer 12
-
$6,708 CAD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$6,724 CAD
View
B
Retailer 14
-
$6,925 CAD
View
B
Retailer 15
-
$7,008 CAD
View
B
Retailer 16
-
$7,065 CAD
View
B
Retailer 17
-
$7,679 CAD
View
B
Retailer 18
-
$8,119 CAD
View
B
Retailer 19
-
$10,569 CAD
View
Most Expensive
B
NZ Jewellers
a8ee4bc2-c613-4e2c-a18c-d585237df2a4 · Nov 5
$11,593 CAD
$8,242 USD
View
19 more retailers have this diamond
Prices start from $4,960 CADSave up to $6,634 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
$4,960 CAD