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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 5543557515

Certificate GIA 5543557515

Diamond specifications and retailer prices

From £511 GBP
$685 USD
As of October 31, 2026
Save £612 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,122 GBP at MOH London · As of November 1, 2026
View at MOH London

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543557515. Listed at 17 retailers as of October 31, 2026, with prices from £511 to £1,122, a £612 spread on the same certified stone. MOH London lists it at £1,122. 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

0.50
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5543557515
Dimensions8.55 × 3.88 × 2.48 mm
L/W Ratio2.20
Top View
8.55 mm3.88 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5543557515
Side View
Table 58.0%CrownGirdle: VTK-ETKPavilionCulet: NDepth 63.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,122 GBP|Low: £555 GBP|High: £1,923 GBP|Avg: £870 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7£555 GBP
Retailer 11£555 GBP
Retailer 5£577 GBP
Retailer 8£641 GBP
Retailer 10£685 GBP
Retailer 2£732 GBP
Retailer 4£866 GBP
Retailer 3£922 GBP
Retailer 9£986 GBP
MOH London£1,122 GBP
Retailer 6£1,923 GBP

44 data points across 11 retailers

17 retailers£511 GBP to £1,122 GBP

B+
Cheapest Retailer
-
£511 GBP
$685 USD
B+
Retailer 2
-
£555 GBP
$745 USD
View
B+
Retailer 3
-
£555 GBP
$745 USD
View
B+
Retailer 4
-
£560 GBP
$752 USD
View
B+
Retailer 5
-
£564 GBP
$757 USD
View
B+
Retailer 6
-
£577 GBP
$774 USD
View
B
Retailer 7
-
£630 GBP
$846 USD
View
B
Retailer 8
-
£641 GBP
$860 USD
View
B
Retailer 9
-
£685 GBP
$919 USD
View
B
Retailer 10
-
£686 GBP
$920 USD
View
B
Retailer 11
-
£686 GBP
$920 USD
View
B
Retailer 12
-
£708 GBP
$950 USD
View
B
Retailer 13
-
£732 GBP
View
B
Retailer 14
-
£866 GBP
€1,107 EUR
View
B
Retailer 15
-
£986 GBP
CA$1,837 CAD
View
Most Expensive
B
MOH London
AE1889CAC · Nov 1
£1,122 GBP
View
15 more retailers have this diamond
Prices start from £511 GBPSave up to £612 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.

B+
0.50ct Marquise
£511 GBP