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Marquise|Natural|IGI

0.40ct G SI2 Marquise Natural Diamond

VG • G/SI2 • IGI 810631815

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 810631815

Diamond specifications and retailer prices

From $292 USD
₹27,815 INR
As of November 2, 2026
Save $635 USD (68%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $927 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.4ct natural marquise diamond

This 0.4ct 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 810631815. Listed at 7 retailers as of October 29, 2026, with prices from $292 to $927, a $635 spread on the same certified stone. MOH London lists it at $927. 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

0.40
Carat
G
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.4°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 810631815
Dimensions7.73 × 3.92 × 2.29 mm
L/W Ratio1.97
Girdle conditionFaceted
Culet sizeNone
Top View
7.73 mm3.92 mm0.40 ctG / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 810631815
Side View
Table 66.0%Crown 33.4°Girdle: MED-THKPavilion 41.1°Culet: NoneDepth 58.4%

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 2
Current: $927 USD|Low: $291 USD|High: $933 USD|Avg: $576 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2$292 USD
Retailer 5$430 USD
Retailer 4$547 USD
Retailer 6$566 USD
Retailer 3$658 USD
MOH London$927 USD

42 data points across 6 retailers

7 retailers$292 USD to $927 USD

A
Cheapest Retailer
-
$292 USD
₹27,815 INR
B+
Retailer 2
-
$430 USD
View
B
Retailer 3
-
$530 USD
View
B
Retailer 4
-
$547 USD
£431 GBP
View
B
Retailer 5
-
$566 USD
View
B
Retailer 6
-
$658 USD
€627 EUR
View
Most Expensive
C
MOH London
FAC90A8B4 · Oct 29
$927 USD
£730 GBP
View
6 more retailers have this diamond
Prices start from $292 USDSave up to $635 USD

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
0.40ct Marquise
$292 USD