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Marquise|Natural|IGI

0.50ct H IF Marquise Natural Diamond

VG • H/IF • IGI 810634454

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 810634454

Diamond specifications and retailer prices

From £561 GBP
As of November 1, 2026
Save £1,354 GBP (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,915 GBP at NZ Jewellers · As of November 3, 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 H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 810634454. Listed at 16 retailers as of November 1, 2026, with prices from £561 to £1,915, a £1,354 spread on the same certified stone. NZ Jewellers lists it at £1,915. 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
H
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.2°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 810634454
Dimensions8.30 × 4.14 × 2.56 mm
L/W Ratio2.00
Girdle conditionFaceted
Top View
8.30 mm4.14 mm0.50 ctH / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 810634454
Side View
Table 61.0%Crown 31.2°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.8%

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 1
Current: £1,915 GBP|Low: £561 GBP|High: £1,956 GBP|Avg: £826 GBP|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 4£561 GBP
Retailer 9£585 GBP
Retailer 14£611 GBP
Retailer 6£614 GBP
Retailer 13£617 GBP
Retailer 3£636 GBP
Retailer 7£665 GBP
Retailer 5£710 GBP
Retailer 2£785 GBP
Retailer 8£797 GBP
Retailer 11£905 GBP
Retailer 10£941 GBP
Retailer 12£1,117 GBP
NZ Jewellers£1,915 GBP

22 data points across 14 retailers

16 retailers£561 GBP to £1,915 GBP

A
Cheapest Retailer
-
£561 GBP
A
Retailer 2
-
£585 GBP
View
A
Retailer 3
-
£610 GBP
View
Final sale: no returns
A
Retailer 4
-
£611 GBP
View
Retailer 5
-
£614 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£617 GBP
View
A
Retailer 7
-
£636 GBP
View
A
Retailer 8
-
£665 GBP
View
B+
Retailer 9
-
£710 GBP
View
B+
Retailer 10
-
£785 GBP
View
B+
Retailer 11
-
£797 GBP
View
B
Retailer 12
-
£858 GBP
View
B+
Retailer 13
-
£905 GBP
View
B+
Retailer 14
-
£941 GBP
View
B
Retailer 15
-
£1,117 GBP
View
Most Expensive
B
NZ Jewellers
bcf729ab-fd92-4dff-ab2e-5ecd1c8f2fd5 · Nov 3
£1,915 GBP
$2,577 USD
View
15 more retailers have this diamond
Prices start from £561 GBPSave up to £1,354 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
£561 GBP