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Marquise|Natural|IGI

0.30ct G SI2 Marquise Natural Diamond

VG • G/SI2 • IGI 790682826

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 790682826

Diamond specifications and retailer prices

From $398 AUD
$279 USD
As of November 1, 2026
Save $521 AUD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $919 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.3ct natural marquise diamond

This 0.3ct natural marquise sits in the sub-half-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 790682826. Listed at 13 retailers as of November 1, 2026, with prices from $398 to $919, a $521 spread on the same certified stone. MOH London lists it at $919. 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

0.30
Carat
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle36.6°
OriginNatural
Grading LabIGI
CertificateIGI 790682826
Dimensions6.44 × 3.42 × 2.12 mm
L/W Ratio1.88
Girdle conditionFaceted
Top View
6.44 mm3.42 mm0.30 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 790682826
Side View
Table 64.0%Crown 43.1°Girdle: STK-VTKPavilion 36.6°Culet: NoneDepth 62.0%

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: $919 AUD|Low: $397 AUD|High: $1,801 AUD|Avg: $653 AUD|+4.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 10$398 AUD
Retailer 4$400 AUD
Retailer 12$428 AUD
Retailer 6$444 AUD
Retailer 7$533 AUD
Retailer 9$535 AUD
Retailer 5$545 AUD
Retailer 11$583 AUD
Retailer 8$641 AUD
Retailer 2$763 AUD
MOH London$919 AUD
Retailer 3$1,801 AUD

28 data points across 12 retailers

13 retailers$398 AUD to $919 AUD

Retailer 1
-
$381 AUD
$267 USD
Price last confirmed 48 days ago
A
Retailer 2
-
$398 AUD
$279 USD
View
B+
Retailer 3
-
$428 AUD
$300 USD
View
B+
Retailer 4
-
$444 AUD
$311 USD
View
Retailer 5
-
$514 AUD
$360 USD
View
Price last confirmed 57 days ago
B+
Retailer 6
-
$533 AUD
$374 USD
View
B+
Retailer 7
-
$535 AUD
$375 USD
View
B+
Retailer 8
-
$545 AUD
£301 GBP
View
B
Retailer 9
-
$583 AUD
$409 USD
View
B
Retailer 10
-
$641 AUD
$449 USD
View
B
Retailer 11
-
$763 AUD
€509 EUR
View
Most Expensive
B
MOH London
A24B9DC22 · Nov 1
$919 AUD
£507 GBP
View
11 more retailers have this diamond
Prices start from $398 AUDSave up to $521 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.

A
0.30ct Marquise
$398 AUD