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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

ID • I/SI2 • GIA 6541821320

Certificate GIA 6541821320

Diamond specifications and retailer prices

From $4,722 CAD
As of November 6, 2026
Save $6,548 CAD (58%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $11,270 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 6541821320. Listed at 22 retailers as of November 5, 2026, with prices from $4,722 to $11,270, a $6,548 spread on the same certified stone. NZ Jewellers lists it at $11,270. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.17°
Pavilion angle41.24°
OriginNatural
Grading LabGIA
CertificateGIA 6541821320
Dimensions10.31 × 5.49 × 3.59 mm
L/W Ratio1.88
Top View
10.31 mm5.49 mm1.20 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541821320
Side View
Table 57.0%Crown 38.17°Girdle: Slightly ThickPavilion 41.24°Culet: NoneDepth 65.3%

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: $11,270 CAD|Low: $4,722 CAD|High: $11,270 CAD|Avg: $6,890 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
Retailer 15
November 6, 2026
Retailer 10$4,722 CAD
Retailer 6$5,157 CAD
Retailer 11$5,247 CAD
Retailer 4$5,338 CAD
Retailer 5$5,408 CAD
Retailer 3$5,860 CAD
Retailer 14$5,860 CAD
Retailer 15$5,860 CAD
Retailer 7$5,984 CAD
Retailer 9$6,331 CAD
Retailer 2$6,361 CAD
Retailer 13$6,762 CAD
Retailer 8$7,279 CAD
Retailer 12$10,303 CAD
NZ Jewellers$11,270 CAD

35 data points across 15 retailers

22 retailers$4,722 CAD to $11,270 CAD

B+
Cheapest Retailer
-
$4,722 CAD
B+
Retailer 2
-
$5,157 CAD
View
B+
Retailer 3
-
$5,247 CAD
View
B+
Retailer 4
-
$5,338 CAD
View
B+
Retailer 5
-
$5,408 CAD
View
Final sale: no returns
B
Retailer 6
-
$5,837 CAD
View
Retailer 7
-
$5,860 CAD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$5,860 CAD
View
B
Retailer 9
-
$5,860 CAD
View
Retailer 10
-
$5,860 CAD
View
Price last confirmed 29 days ago
B
Retailer 11
-
$5,984 CAD
View
B+
Retailer 12
-
$6,331 CAD
View
B
Retailer 13
-
$6,344 CAD
View
B
Retailer 14
-
$6,344 CAD
View
B+
Retailer 15
-
$6,361 CAD
View
B
Retailer 16
-
$6,555 CAD
View
B
Retailer 17
-
$6,762 CAD
View
Retailer 18
-
$6,762 CAD
View
Price last confirmed 23 days ago
B
Retailer 19
-
$7,279 CAD
View
Retailer 20
-
$7,314 CAD
View
Price last confirmed 22 days ago
B
Retailer 21
-
$10,303 CAD
View
Most Expensive
B
NZ Jewellers
fb7d9bd2-31bc-48ef-bd72-849a60980f7e · Nov 5
$11,270 CAD
$8,012 USD
View
21 more retailers have this diamond
Prices start from $4,722 CADSave up to $6,548 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
$4,722 CAD