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Marquise|Natural|IGI

0.40ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 815673826

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815673826

Diamond specifications and retailer prices

From $408 AUD
₹27,246 INR
As of November 2, 2026
Save $884 AUD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,292 AUD at MOH London · As of November 1, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815673826. Listed at 13 retailers as of November 1, 2026, with prices from $408 to $1,292, a $884 spread on the same certified stone. MOH London lists it at $1,292. 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
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle33.6°
Pavilion angle39.1°
OriginNatural
Grading LabIGI
CertificateIGI 815673826
Dimensions7.38 × 4.08 × 2.30 mm
L/W Ratio1.81
Girdle conditionFaceted
Top View
7.38 mm4.08 mm0.40 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 815673826
Side View
Table 65.0%Crown 33.6°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 56.4%

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: $1,292 AUD|Low: $408 AUD|High: $2,143 AUD|Avg: $879 AUD|-4.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 2$408 AUD
Retailer 13$559 AUD
Retailer 11$602 AUD
Retailer 12$602 AUD
Retailer 9$642 AUD
Retailer 14$645 AUD
Retailer 5$746 AUD
Retailer 8$757 AUD
Retailer 4$798 AUD
Retailer 10$867 AUD
Retailer 7$926 AUD
Retailer 6$1,145 AUD
MOH London$1,292 AUD
Retailer 3$2,143 AUD

35 data points across 14 retailers

13 retailers$408 AUD to $1,292 AUD

A
Cheapest Retailer
-
$408 AUD
₹27,246 INR
B+
Retailer 2
-
$559 AUD
$392 USD
View
B+
Retailer 3
-
$602 AUD
$422 USD
View
B+
Retailer 4
-
$602 AUD
$422 USD
View
B
Retailer 5
-
$642 AUD
$450 USD
View
B
Retailer 6
-
$645 AUD
$452 USD
View
B
Retailer 7
-
$746 AUD
$523 USD
View
B
Retailer 8
-
$757 AUD
£418 GBP
View
B
Retailer 9
-
$798 AUD
$559 USD
View
B
Retailer 10
-
$867 AUD
ZAR 9,816 ZAR
View
B
Retailer 11
-
$926 AUD
€618 EUR
View
Most Expensive
C
MOH London
DE12E4703 · Nov 1
$1,292 AUD
£713 GBP
View
11 more retailers have this diamond
Prices start from $408 AUDSave up to $884 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
0.40ct Marquise
$408 AUD