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Marquise|Natural|GIA

0.50ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 7561430819

Certificate GIA 7561430819

Diamond specifications and retailer prices

From £447 GBP
As of November 5, 2026
Save £648 GBP (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,879 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7561430819. Listed at 11 retailers as of November 4, 2026, with a 145% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7561430819
Dimensions8.48 × 4.04 × 2.48 mm
L/W Ratio2.10
Girdle conditionVery Thick
Top View
8.48 mm4.04 mm0.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7561430819
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.4%

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 5
Current: £711 GBP|Low: £447 GBP|High: £1,110 GBP|Avg: £715 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3£447 GBP
Retailer 6£546 GBP
Retailer 7£608 GBP
Retailer 1£711 GBP
Retailer 2£713 GBP
Retailer 5£846 GBP
Retailer 4£1,095 GBP

31 data points across 7 retailers

11 retailers£447 GBP to £1,095 GBP

A
Cheapest Retailer
-
£447 GBP
A
Retailer 2
-
£467 GBP
View
Final sale: no returns
A
Retailer 3
-
£546 GBP
View
B+
Retailer 4
-
£608 GBP
View
B+
Retailer 5
-
£674 GBP
View
B+
Retailer 6
-
£698 GBP
View
B+
Retailer 7
-
£711 GBP
View
B+
Retailer 8
-
£713 GBP
View
B+
Retailer 9
-
£846 GBP
View
B
Retailer 10
-
£1,095 GBP
View
Most Expensive
NZ Jewellers
f1a9d7d7-0524-492a-803c-336e83648f21 · Nov 5
£1,879 GBP
$2,529 USD
View
Price under review
10 more retailers have this diamond
Prices start from £447 GBPSave up to £648 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
£447 GBP