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Marquise|Natural|GIA

1.21ct F SI2 Marquise Natural Diamond

GD • F/SI2 • GIA 1555561523

Certificate GIA 1555561523

Diamond specifications and retailer prices

From $4,510 CAD
As of November 4, 2026
Save $4,065 CAD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,575 CAD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1555561523. Listed at 12 retailers as of November 4, 2026, with prices from $4,510 to $8,575, a $4,065 spread on the same certified stone. Helzberg Diamonds lists it at $8,575. 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

1.21
Carat
F
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.64°
Pavilion angle40.64°
OriginNatural
Grading LabGIA
CertificateGIA 1555561523
Dimensions9.96 × 5.47 × 3.68 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.96 mm5.47 mm1.21 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555561523
Side View
Table 59.0%Crown 43.64°Girdle: STK-VTKPavilion 40.64°Culet: NoneDepth 67.3%

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 4
Current: $8,575 CAD|Low: $4,510 CAD|High: $8,759 CAD|Avg: $6,024 CAD|-2.1%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$4,510 CAD
Retailer 6$4,714 CAD
Retailer 3$4,917 CAD
Retailer 5$5,176 CAD
Retailer 2$5,427 CAD
Retailer 11$5,432 CAD
Retailer 9$5,753 CAD
Retailer 10$5,836 CAD
Retailer 4$5,998 CAD
Retailer 8$8,084 CAD
Helzberg Diamonds$8,575 CAD

41 data points across 11 retailers

12 retailers$4,510 CAD to $8,575 CAD

A
Cheapest Retailer
-
$4,510 CAD
A
Retailer 2
-
$4,714 CAD
View
B+
Retailer 3
-
$4,917 CAD
View
B+
Retailer 4
-
$5,176 CAD
View
B+
Retailer 5
-
$5,427 CAD
View
B+
Retailer 6
-
$5,432 CAD
View
B+
Retailer 7
-
$5,753 CAD
View
B+
Retailer 8
-
$5,836 CAD
View
B+
Retailer 9
-
$5,998 CAD
View
B
Retailer 10
-
$6,328 CAD
View
B
Retailer 11
-
$8,084 CAD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLLLMHLIJ · Nov 6
$8,575 CAD
$6,096 USD
View
11 more retailers have this diamond
Prices start from $4,510 CADSave up to $4,065 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
1.21ct Marquise
$4,510 CAD