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Marquise|Natural|GIA

0.50ct H IF Marquise Natural Diamond

EX • H/IF • GIA 5231928046

Certificate GIA 5231928046

Diamond specifications and retailer prices

From £476 GBP
As of November 4, 2026
Save £589 GBP (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,064 GBP at Flawless Fine Jewelry · As of November 6, 2026
View at Flawless Fine Jewelry

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231928046. Listed at 14 retailers as of November 4, 2026, with prices from £476 to £1,064, a £589 spread on the same certified stone. Flawless Fine Jewelry lists it at £1,064. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.50
Carat
H
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.86°
Pavilion angle38.87°
OriginNatural
Grading LabGIA
CertificateGIA 5231928046
Dimensions8.56 × 3.99 × 2.41 mm
L/W Ratio2.15
Top View
8.56 mm3.99 mm0.50 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231928046
Side View
Table 59.0%Crown 37.86°Girdle: STK-VTKPavilion 38.87°Culet: NoneDepth 60.3%

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 4
Current: £1,064 GBP|Low: £476 GBP|High: £1,110 GBP|Avg: £704 GBP|-4.1%
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 10£476 GBP
Retailer 4£516 GBP
Retailer 8£516 GBP
Retailer 13£545 GBP
Retailer 7£572 GBP
Retailer 6£606 GBP
Retailer 11£670 GBP
Retailer 2£713 GBP
Retailer 12£721 GBP
Retailer 9£756 GBP
Retailer 3£778 GBP
Retailer 5£828 GBP
Flawless Fine Jewelry£1,064 GBP

30 data points across 13 retailers

14 retailers£476 GBP to £1,064 GBP

A
Cheapest Retailer
-
£476 GBP
A
Retailer 2
-
£516 GBP
View
A
Retailer 3
-
£516 GBP
View
A
Retailer 4
-
£545 GBP
View
A
Retailer 5
-
£572 GBP
View
A
Retailer 6
-
£606 GBP
View
A
Retailer 7
-
£670 GBP
View
B+
Retailer 8
-
£676 GBP
View
B+
Retailer 9
-
£713 GBP
View
B+
Retailer 10
-
£721 GBP
View
B+
Retailer 11
-
£756 GBP
View
B+
Retailer 12
-
£778 GBP
View
B+
Retailer 13
-
£828 GBP
View
Most Expensive
B
Flawless Fine Jewelry
8DC6F85E3 · Nov 6
£1,064 GBP
View
13 more retailers have this diamond
Prices start from £476 GBPSave up to £589 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
0.50ct Marquise
£476 GBP