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Marquise|Natural|IGI

0.42ct H SI1 Marquise Natural Diamond

VG • H/SI1 • IGI 800672790

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 800672790

Diamond specifications and retailer prices

From €365 EUR
$409 USD
As of October 29, 2026
Save €481 EUR (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €846 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 0.42ct natural marquise diamond

This 0.42ct natural marquise sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 800672790. Listed at 8 retailers as of October 29, 2026, with prices from €365 to €846, a €481 spread on the same certified stone. MOH London lists it at €846. 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
H
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle28.8°
Pavilion angle38°
OriginNatural
Grading LabIGI
CertificateIGI 800672790
Dimensions8.41 × 3.71 × 2.26 mm
L/W Ratio2.27
Girdle conditionFaceted
Top View
8.41 mm3.71 mm0.42 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 800672790
Side View
Table 61.0%Crown 28.8°Girdle: MED-THKPavilion 38°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €846 EUR|Low: €471 EUR|High: €851 EUR|Avg: €597 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5€471 EUR
Retailer 4€529 EUR
Retailer 3€530 EUR
Retailer 2€612 EUR
MOH London€846 EUR

18 data points across 5 retailers

8 retailers€365 EUR to €846 EUR

Retailer 1
-
€365 EUR
$409 USD
Price last confirmed 26 days ago
B+
Retailer 2
-
€365 EUR
$409 USD
View
Retailer 3
-
€392 EUR
$440 USD
View
Price last confirmed 33 days ago
B
Retailer 4
-
€529 EUR
$594 USD
View
B
Retailer 5
-
€530 EUR
$595 USD
View
B
Retailer 6
-
€612 EUR
View
Most Expensive
B
MOH London
2B93BA6B8 · Oct 29
€846 EUR
£747 GBP
View
6 more retailers have this diamond
Prices start from €365 EURSave up to €481 EUR

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.

B+
0.42ct Marquise
€365 EUR