Marquise|Natural|IGI

0.42ct I VS1 Marquise Natural Diamond

VG • I/VS1 • IGI 839658216

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 839658216

Diamond specifications and retailer prices

From £340 GBP
$456 USD
As of October 29, 2026
Save £446 GBP (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,304 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.42ct natural marquise diamond

This 0.42ct natural marquise sits in the sub-half-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 839658216. Listed at 9 retailers as of October 26, 2026, with a 131% 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

0.42
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle31.3°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 839658216
Dimensions7.18 × 3.96 × 2.57 mm
L/W Ratio1.81
Girdle conditionFaceted
Top View
7.18 mm3.96 mm0.42 ctI / VS1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 839658216
Side View
Table 53.0%Crown 31.3°Girdle: STK-THKPavilion 41.8°Culet: NoneDepth 64.9%

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: Oct 29
Current: £1,304 GBP|Low: £340 GBP|High: £1,304 GBP|Avg: £605 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5£340 GBP
Retailer 9£366 GBP
Retailer 8£440 GBP
Retailer 2£480 GBP
Retailer 6£496 GBP
Retailer 7£496 GBP
Retailer 3£679 GBP
Retailer 4£787 GBP
NZ Jewellers£1,304 GBP

13 data points across 9 retailers

9 retailers£340 GBP to £787 GBP

A
Cheapest Retailer
-
£340 GBP
$456 USD
B+
Retailer 2
-
£366 GBP
$491 USD
View
B+
Retailer 3
-
£440 GBP
$590 USD
View
B
Retailer 4
-
£480 GBP
€612 EUR
View
B
Retailer 5
-
£496 GBP
$665 USD
View
B
Retailer 6
-
£496 GBP
$665 USD
View
B
Retailer 7
-
£679 GBP
View
C
Retailer 8
-
£787 GBP
View
Most Expensive
NZ Jewellers
4894bf97-b99e-4956-8b51-9c67718effd4 · Oct 30
£1,304 GBP
$1,747 USD
View
Price under review
8 more retailers have this diamond
Prices start from £340 GBPSave up to £446 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
0.42ct Marquise
£340 GBP