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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 1567415074

Certificate GIA 1567415074

Diamond specifications and retailer prices

From $758 CAD
As of November 6, 2026
Save $1,204 CAD (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,365 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 1567415074. Listed at 11 retailers as of November 4, 2026, with a 159% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1567415074
Dimensions8.13 × 4.25 × 2.61 mm
L/W Ratio1.91
Girdle conditionVery Thick
Top View
8.13 mm4.25 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1567415074
Side View
Table 57.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.4%

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: $798 CAD|Low: $798 CAD|High: $1,975 CAD|Avg: $1,290 CAD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$798 CAD
Retailer 6$1,089 CAD
Retailer 2$1,274 CAD
Retailer 4$1,276 CAD
Retailer 3$1,511 CAD
Retailer 5$1,962 CAD

30 data points across 6 retailers

11 retailers$758 CAD to $1,962 CAD

A
Cheapest Retailer
-
$758 CAD
Final sale: no returns
A
Retailer 2
-
$798 CAD
View
Retailer 3
-
$985 CAD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
$1,089 CAD
View
B+
Retailer 5
-
$1,225 CAD
View
B+
Retailer 6
-
$1,259 CAD
View
B+
Retailer 7
-
$1,274 CAD
View
B+
Retailer 8
-
$1,276 CAD
View
B+
Retailer 9
-
$1,511 CAD
View
B
Retailer 10
-
$1,962 CAD
View
Most Expensive
NZ Jewellers
f9b0e7a9-88f2-4fac-abcd-6248f25589b8 · Nov 5
$3,365 CAD
$2,392 USD
View
Price under review
10 more retailers have this diamond
Prices start from $758 CADSave up to $1,204 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
$758 CAD