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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 6565139545

Certificate GIA 6565139545

Diamond specifications and retailer prices

From $841 CAD
As of November 6, 2026
Save $597 CAD (42%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,438 CAD at Frank Darling · As of November 6, 2026
View at Frank Darling

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6565139545. Listed at 8 retailers as of November 6, 2026, with prices from $841 to $1,438, a $597 spread on the same certified stone. Frank Darling lists it at $1,438. 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

0.51
Carat
F
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565139545
Dimensions7.85 × 4.13 × 2.58 mm
L/W Ratio1.90
Culet sizeNone
Top View
7.85 mm4.13 mm0.51 ctF / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565139545
Side View
Table 60.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 62.5%

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 6
Current: $1,438 CAD|Low: $841 CAD|High: $1,454 CAD|Avg: $1,099 CAD|-1.1%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$841 CAD
Retailer 6$865 CAD
Retailer 9$865 CAD
Retailer 5$987 CAD
Retailer 7$1,093 CAD
Retailer 3$1,176 CAD
Retailer 2$1,234 CAD
Retailer 4$1,260 CAD
Frank Darling$1,438 CAD

25 data points across 9 retailers

8 retailers$841 CAD to $1,438 CAD

A
Cheapest Retailer
-
$841 CAD
Retailer 2
-
$865 CAD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$987 CAD
View
B+
Retailer 4
-
$1,093 CAD
View
B+
Retailer 5
-
$1,176 CAD
View
B+
Retailer 6
-
$1,234 CAD
View
B+
Retailer 7
-
$1,260 CAD
View
Most Expensive
B
Frank Darling
2679411HK · Nov 6
$1,438 CAD
$1,022 USD
View
7 more retailers have this diamond
Prices start from $841 CADSave up to $597 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
$841 CAD