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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 $584 AUD
$409 USD
As of October 29, 2026
Save $770 AUD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,354 AUD 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 $584 to $1,354, a $770 spread on the same certified stone. MOH London lists it at $1,354. 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
Colour
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: $1,354 AUD|Low: $753 AUD|High: $1,363 AUD|Avg: $956 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5$753 AUD
Retailer 4$847 AUD
Retailer 3$849 AUD
Retailer 2$980 AUD
MOH London$1,354 AUD

18 data points across 5 retailers

8 retailers$584 AUD to $1,354 AUD

Retailer 1
-
$584 AUD
$409 USD
Price last confirmed 26 days ago
B+
Retailer 2
-
$584 AUD
$409 USD
View
Retailer 3
-
$628 AUD
$440 USD
View
Price last confirmed 33 days ago
B
Retailer 4
-
$847 AUD
$594 USD
View
B
Retailer 5
-
$849 AUD
$595 USD
View
B
Retailer 6
-
$980 AUD
€654 EUR
View
Most Expensive
B
MOH London
2B93BA6B8 · Oct 29
$1,354 AUD
£747 GBP
View
6 more retailers have this diamond
Prices start from $584 AUDSave up to $770 AUD

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
$584 AUD