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Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 6561140322

Certificate GIA 6561140322

Diamond specifications and retailer prices

From £469 GBP
As of November 6, 2026
Save £314 GBP (40%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £783 GBP 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 E 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 6561140322. Listed at 9 retailers as of November 6, 2026, with prices from £469 to £783, a £314 spread on the same certified stone. Frank Darling lists it at £783. 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
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561140322
Dimensions7.58 × 4.09 × 2.61 mm
L/W Ratio1.85
Culet sizeNone
Top View
7.58 mm4.09 mm0.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561140322
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.9%

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: £783 GBP|Low: £468 GBP|High: £806 GBP|Avg: £625 GBP|-2.9%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£469 GBP
Retailer 3£471 GBP
Retailer 5£479 GBP
Retailer 7£550 GBP
Retailer 6£609 GBP
Retailer 2£652 GBP
Retailer 4£687 GBP
Retailer 9£702 GBP
Frank Darling£783 GBP

39 data points across 9 retailers

9 retailers£469 GBP to £783 GBP

A
Cheapest Retailer
-
£469 GBP
A
Retailer 2
-
£471 GBP
View
A
Retailer 3
-
£479 GBP
View
A
Retailer 4
-
£550 GBP
View
B+
Retailer 5
-
£609 GBP
View
B+
Retailer 6
-
£652 GBP
View
B+
Retailer 7
-
£687 GBP
View
B+
Retailer 8
-
£702 GBP
View
Most Expensive
B
Frank Darling
2679392HK · Nov 6
£783 GBP
$1,054 USD
View
8 more retailers have this diamond
Prices start from £469 GBPSave up to £314 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
£469 GBP