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Marquise|Natural|GIA

1.01ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 1553986435

Certificate GIA 1553986435

Diamond specifications and retailer prices

From $3,434 CAD
As of November 5, 2026
Save $2,813 CAD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,247 CAD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553986435. Listed at 11 retailers as of November 5, 2026, with prices from $3,434 to $6,247, a $2,813 spread on the same certified stone. Helzberg Diamonds lists it at $6,247. 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

1.01
Carat
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.53°
Pavilion angle40.82°
OriginNatural
Grading LabGIA
CertificateGIA 1553986435
Dimensions9.99 × 5.27 × 3.33 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.99 mm5.27 mm1.01 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553986435
Side View
Table 59.0%Crown 37.53°Girdle: STK-THKPavilion 40.82°Culet: NoneDepth 63.1%

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 5
Current: $6,247 CAD|Low: $3,415 CAD|High: $6,473 CAD|Avg: $4,369 CAD|-3.5%
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 5$3,434 CAD
Retailer 11$3,504 CAD
Retailer 6$3,635 CAD
Retailer 3$3,647 CAD
Retailer 4$3,863 CAD
Retailer 10$3,957 CAD
Retailer 8$4,261 CAD
Retailer 9$4,419 CAD
Retailer 2$4,663 CAD
Retailer 7$5,940 CAD
Helzberg Diamonds$6,247 CAD

44 data points across 11 retailers

11 retailers$3,434 CAD to $6,247 CAD

A
Cheapest Retailer
-
$3,434 CAD
A
Retailer 2
-
$3,504 CAD
View
A
Retailer 3
-
$3,635 CAD
View
A
Retailer 4
-
$3,647 CAD
View
A
Retailer 5
-
$3,863 CAD
View
A
Retailer 6
-
$3,957 CAD
View
A
Retailer 7
-
$4,261 CAD
View
A
Retailer 8
-
$4,419 CAD
View
A
Retailer 9
-
$4,663 CAD
View
B+
Retailer 10
-
$5,940 CAD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLJPOMKJL · Nov 6
$6,247 CAD
$4,473 USD
View
10 more retailers have this diamond
Prices start from $3,434 CADSave up to $2,813 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
1.01ct Marquise
$3,434 CAD