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Marquise|Natural|GIA

0.50ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 1569274719

Certificate GIA 1569274719

Diamond specifications and retailer prices

From £401 GBP
As of November 6, 2026
Save £637 GBP (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,781 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 G 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 1569274719. Listed at 11 retailers as of November 4, 2026, with a 159% 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1569274719
Dimensions7.78 × 4.09 × 2.63 mm
L/W Ratio1.90
Girdle conditionVery Thick
Top View
7.78 mm4.09 mm0.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1569274719
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 64.3%

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 6
Current: £1,781 GBP|Low: £365 GBP|High: £1,795 GBP|Avg: £760 GBP|-0.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9£401 GBP
Retailer 2£422 GBP
Retailer 10£577 GBP
Retailer 3£648 GBP
Retailer 8£666 GBP
Retailer 4£675 GBP
Retailer 5£675 GBP
Retailer 11£702 GBP
Retailer 7£802 GBP
Retailer 6£1,038 GBP
NZ Jewellers£1,781 GBP

12 data points across 11 retailers

11 retailers£401 GBP to £1,038 GBP

A
Cheapest Retailer
-
£401 GBP
Final sale: no returns
A
Retailer 2
-
£422 GBP
View
B+
Retailer 3
-
£577 GBP
View
B+
Retailer 4
-
£648 GBP
View
B+
Retailer 5
-
£666 GBP
View
B+
Retailer 6
-
£675 GBP
View
B+
Retailer 7
-
£675 GBP
View
B
Retailer 8
-
£702 GBP
View
B
Retailer 9
-
£802 GBP
View
B
Retailer 10
-
£1,038 GBP
View
Most Expensive
NZ Jewellers
476121ab-da3c-4c05-bee5-451693aebcc2 · Nov 5
£1,781 GBP
$2,384 USD
View
Price under review
10 more retailers have this diamond
Prices start from £401 GBPSave up to £637 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
£401 GBP