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Marquise|Natural|GIA

0.50ct J SI2 Marquise Natural Diamond

VG • J/SI2 • GIA 7561810888

Certificate GIA 7561810888

Diamond specifications and retailer prices

From £272 GBP
As of November 6, 2026
Save £170 GBP (39%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,381 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7561810888. Listed at 11 retailers as of November 6, 2026, with a 63% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.50
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7561810888
Dimensions7.86 × 4.12 × 2.58 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cavity, Feather, Crystal
Top View
7.86 mm4.12 mm0.50 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7561810888
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 62.7%

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: £1,381 GBP|Low: £256 GBP|High: £1,381 GBP|Avg: £437 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2£272 GBP
Retailer 7£332 GBP
Retailer 10£345 GBP
Retailer 5£360 GBP
Retailer 6£388 GBP
Retailer 9£416 GBP
Retailer 3£428 GBP
Retailer 8£440 GBP
Retailer 4£442 GBP
NZ Jewellers£1,381 GBP

4 data points across 10 retailers

11 retailers£272 GBP to £442 GBP

A
Cheapest Retailer
-
£272 GBP
B+
Retailer 2
-
£332 GBP
View
Final sale: no returns
B+
Retailer 3
-
£345 GBP
View
B+
Retailer 4
-
£360 GBP
View
B+
Retailer 5
-
£364 GBP
View
B+
Retailer 6
-
£388 GBP
View
B+
Retailer 7
-
£416 GBP
View
B+
Retailer 8
-
£428 GBP
View
B+
Retailer 9
-
£440 GBP
View
B+
Retailer 10
-
£442 GBP
View
Most Expensive
NZ Jewellers
e95f45c3-0f25-4f15-8445-6adf134194ce · Nov 5
£1,381 GBP
$1,849 USD
View
Price under review
10 more retailers have this diamond
Prices start from £272 GBPSave up to £170 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
£272 GBP