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Marquise|Natural|GIA

1.21ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6552321568

Certificate GIA 6552321568

Diamond specifications and retailer prices

From $4,477 CAD
As of November 4, 2026
Save $4,037 CAD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,514 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 H 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 6552321568. Listed at 12 retailers as of November 4, 2026, with prices from $4,477 to $8,514, a $4,037 spread on the same certified stone. Helzberg Diamonds lists it at $8,514. 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

1.21
Carat
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.45°
Pavilion angle42.02°
OriginNatural
Grading LabGIA
CertificateGIA 6552321568
Dimensions10.69 × 5.65 × 3.55 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.69 mm5.65 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552321568
Side View
Table 61.0%Crown 35.45°Girdle: MED-THKPavilion 42.02°Culet: NoneDepth 62.8%

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: $8,514 CAD|Low: $4,477 CAD|High: $8,524 CAD|Avg: $5,869 CAD|-0.1%
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$4,477 CAD
Retailer 6$4,512 CAD
Retailer 5$4,587 CAD
Retailer 8$4,784 CAD
Retailer 4$5,140 CAD
Retailer 11$5,391 CAD
Retailer 9$5,714 CAD
Retailer 10$5,798 CAD
Retailer 2$5,956 CAD
Retailer 3$7,998 CAD
Helzberg Diamonds$8,514 CAD

43 data points across 11 retailers

12 retailers$4,477 CAD to $8,514 CAD

A
Cheapest Retailer
-
$4,477 CAD
A
Retailer 2
-
$4,512 CAD
View
A
Retailer 3
-
$4,587 CAD
View
B+
Retailer 4
-
$4,784 CAD
View
B+
Retailer 5
-
$5,140 CAD
View
B+
Retailer 6
-
$5,391 CAD
View
B+
Retailer 7
-
$5,714 CAD
View
B+
Retailer 8
-
$5,798 CAD
View
B+
Retailer 9
-
$5,956 CAD
View
B+
Retailer 10
-
$6,067 CAD
View
B
Retailer 11
-
$7,998 CAD
View
Most Expensive
B
Helzberg Diamonds
XZRMLLIJIHLMO · Nov 6
$8,514 CAD
$6,053 USD
View
11 more retailers have this diamond
Prices start from $4,477 CADSave up to $4,037 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
$4,477 CAD