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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 7563226303

Certificate GIA 7563226303

Diamond specifications and retailer prices

From £426 GBP
SGD 773 SGD
As of November 2, 2026
Save £317 GBP (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £744 GBP at Frank Darling · As of November 2, 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 7563226303. Listed at 9 retailers as of November 2, 2026, with prices from £426 to £744, a £317 spread on the same certified stone. Frank Darling lists it at £744. 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
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7563226303
Dimensions8.05 × 4.15 × 2.68 mm
L/W Ratio1.94
Culet sizeNone
Top View
8.05 mm4.15 mm0.51 ctF / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7563226303
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.5%

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 2
Current: £744 GBP|Low: £426 GBP|High: £789 GBP|Avg: £576 GBP|-5.8%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8£426 GBP
Retailer 5£433 GBP
Retailer 9£455 GBP
Retailer 4£501 GBP
Retailer 6£555 GBP
Retailer 3£602 GBP
Retailer 2£626 GBP
Retailer 7£641 GBP
Frank Darling£744 GBP

36 data points across 9 retailers

9 retailers£426 GBP to £744 GBP

A
Cheapest Retailer
-
£426 GBP
SGD 773 SGD
A
Retailer 2
-
£433 GBP
SGD 786 SGD
View
Retailer 3
-
£455 GBP
$610 USD
View
Price last confirmed 26 days ago
A
Retailer 4
-
£501 GBP
View
B+
Retailer 5
-
£555 GBP
$744 USD
View
B+
Retailer 6
-
£602 GBP
€769 EUR
View
B+
Retailer 7
-
£626 GBP
$840 USD
View
B+
Retailer 8
-
£641 GBP
$860 USD
View
Most Expensive
B
Frank Darling
2683942HK · Nov 2
£744 GBP
$998 USD
View
8 more retailers have this diamond
Prices start from £426 GBPSave up to £317 GBP

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
£426 GBP