Marquise|Natural|IGI

1.20ct G SI1 Marquise Natural Diamond

VG • G/SI1 • IGI 801638156

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 801638156

Diamond specifications and retailer prices

From $4,213 CAD
As of November 1, 2026
Save $5,653 CAD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,866 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 801638156. Listed at 20 retailers as of November 1, 2026, with prices from $4,213 to $9,866, a $5,653 spread on the same certified stone. NZ Jewellers lists it at $9,866. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
G
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle34.8°
OriginNatural
Grading LabIGI
CertificateIGI 801638156
Dimensions11.22 × 5.69 × 3.07 mm
L/W Ratio1.97
Girdle conditionFaceted
Top View
11.22 mm5.69 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801638156
Side View
Table 62.0%Crown 33.7°Girdle: STK-THKPavilion 34.8°Culet: NoneDepth 54.0%

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 1
Current: $5,493 CAD|Low: $4,346 CAD|High: $9,583 CAD|Avg: $6,346 CAD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$4,754 CAD
Retailer 8$5,226 CAD
Retailer 1$5,493 CAD
Retailer 9$5,663 CAD
Retailer 3$5,808 CAD
Retailer 2$6,321 CAD
Retailer 7$6,649 CAD
Retailer 4$6,912 CAD
Retailer 6$9,521 CAD

40 data points across 9 retailers

20 retailers$4,213 CAD to $9,866 CAD

A
Cheapest Retailer
-
$4,213 CAD
B+
Retailer 2
-
$4,754 CAD
View
B+
Retailer 3
-
$4,923 CAD
View
B+
Retailer 4
-
$4,984 CAD
View
Retailer 5
-
$5,074 CAD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$5,226 CAD
View
Final sale: no returns
B+
Retailer 7
-
$5,401 CAD
View
B+
Retailer 8
-
$5,493 CAD
View
B+
Retailer 9
-
$5,663 CAD
View
B+
Retailer 10
-
$5,663 CAD
View
Retailer 11
-
$5,663 CAD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$5,708 CAD
View
B+
Retailer 13
-
$5,808 CAD
View
B+
Retailer 14
-
$5,870 CAD
View
B
Retailer 15
-
$6,321 CAD
View
B
Retailer 16
-
$6,534 CAD
View
B
Retailer 17
-
$6,912 CAD
View
B
Retailer 18
-
$8,324 CAD
View
Retailer 19
-
$9,521 CAD
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
07948e4e-9dd3-4c0a-9991-44929910dfc2 · Nov 5
$9,866 CAD
$7,014 USD
View
19 more retailers have this diamond
Prices start from $4,213 CADSave up to $5,653 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
$4,213 CAD