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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 1553998645

Certificate GIA 1553998645

Diamond specifications and retailer prices

From $684 CAD
As of November 6, 2026
Save $1,893 CAD (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,577 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded F 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 1553998645. Listed at 15 retailers as of November 5, 2026, with prices from $684 to $2,577, a $1,893 spread on the same certified stone. NZ Jewellers lists it at $2,577. 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

0.51
Carat
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
OriginNatural
Grading LabGIA
CertificateGIA 1553998645
Dimensions8.26 × 4.07 × 2.63 mm
L/W Ratio2.03
Key to symbols
Feather, Crystal
Top View
8.26 mm4.07 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 1553998645
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.6%

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 6
Current: $2,577 CAD|Low: $684 CAD|High: $2,685 CAD|Avg: $1,141 CAD|+4.4%
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
November 6, 2026
Retailer 3$684 CAD
Retailer 4$758 CAD
Retailer 8$821 CAD
Retailer 6$855 CAD
Retailer 9$885 CAD
Retailer 14$885 CAD
Retailer 13$948 CAD
Retailer 2$975 CAD
Retailer 7$997 CAD
Retailer 5$1,009 CAD
Retailer 12$1,028 CAD
Retailer 11$1,211 CAD
Retailer 10$1,895 CAD
NZ Jewellers$2,577 CAD

28 data points across 14 retailers

15 retailers$684 CAD to $2,577 CAD

A
Cheapest Retailer
-
$684 CAD
B+
Retailer 2
-
$758 CAD
View
Final sale: no returns
A
Retailer 3
-
$821 CAD
View
Retailer 4
-
$855 CAD
View
Price last confirmed 11 days ago
Retailer 5
-
$879 CAD
View
Price last confirmed 31 days ago
Retailer 6
-
$885 CAD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$885 CAD
View
A
Retailer 8
-
$948 CAD
View
B+
Retailer 9
-
$975 CAD
View
A
Retailer 10
-
$997 CAD
View
A
Retailer 11
-
$1,009 CAD
View
B+
Retailer 12
-
$1,028 CAD
View
B+
Retailer 13
-
$1,211 CAD
View
B
Retailer 14
-
$1,895 CAD
View
Most Expensive
B
NZ Jewellers
ef7fecc0-6502-49dc-9721-2bf56ec24754 · Nov 5
$2,577 CAD
$1,832 USD
View
14 more retailers have this diamond
Prices start from $684 CADSave up to $1,893 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
0.51ct Marquise
$684 CAD