Marquise|Natural|IGI

0.50ct I VS1 Marquise Natural Diamond

VG • I/VS1 • IGI 815674242

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815674242

Diamond specifications and retailer prices

From £305 GBP
As of November 4, 2026
Save £458 GBP (60%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,323 GBP at NZ Jewellers · As of October 17, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 815674242. Listed at 20 retailers as of November 4, 2026, with a 150% 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
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.6°
Pavilion angle39.4°
OriginNatural
Grading LabIGI
CertificateIGI 815674242
Dimensions7.76 × 4.32 × 2.49 mm
L/W Ratio1.80
Girdle conditionFaceted
Top View
7.76 mm4.32 mm0.50 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 815674242
Side View
Table 65.0%Crown 33.6°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 57.6%

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 4
Current: £1,323 GBP|Low: £305 GBP|High: £1,323 GBP|Avg: £520 GBP
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 9£305 GBP
Retailer 5£331 GBP
Retailer 3£357 GBP
Retailer 6£371 GBP
Retailer 2£382 GBP
Retailer 11£382 GBP
Retailer 8£423 GBP
Retailer 7£428 GBP
Retailer 12£487 GBP
Retailer 14£500 GBP
Retailer 10£513 GBP
Retailer 4£736 GBP
Retailer 13£762 GBP
NZ Jewellers£1,323 GBP

26 data points across 14 retailers

20 retailers£305 GBP to £762 GBP

A
Cheapest Retailer
-
£305 GBP
Final sale: no returns
Retailer 2
-
£331 GBP
View
Price last confirmed 8 days ago
Retailer 3
-
£345 GBP
View
Price last confirmed 19 days ago
Retailer 4
-
£357 GBP
View
Price last confirmed 8 days ago
Retailer 5
-
£371 GBP
View
Price last confirmed 21 days ago
Retailer 6
-
£371 GBP
View
Price last confirmed 22 days ago
Retailer 7
-
£377 GBP
View
Price last confirmed 46 days ago
A
Retailer 8
-
£382 GBP
View
A
Retailer 9
-
£382 GBP
View
Retailer 10
-
£398 GBP
View
Price last confirmed 18 days ago
A
Retailer 11
-
£423 GBP
View
A
Retailer 12
-
£428 GBP
View
Retailer 13
-
£435 GBP
View
Price last confirmed 46 days ago
B+
Retailer 14
-
£487 GBP
View
A
Retailer 15
-
£500 GBP
View
A
Retailer 16
-
£513 GBP
View
B
Retailer 17
-
£736 GBP
View
B
Retailer 18
-
£762 GBP
View
Retailer 19
-
£1,181 GBP
View
Price last confirmed 47 days ago
Most Expensive
NZ Jewellers
81ffbba1-b3d9-45f0-800e-a670ea43cfc6 · Oct 17
£1,323 GBP
$1,780 USD
View
Price last confirmed 19 days ago
19 more retailers have this diamond
Prices start from £305 GBPSave up to £458 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
£305 GBP