CaratHunter
Plans
Marquise|Lab Grown|IGI

0.50ct I SI1 Marquise Lab Grown Diamond

ID • I/SI1 • IGI LG436047412

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436047412

Diamond specifications and retailer prices

From $384 AUD
$270 USD
As of October 30, 2026
Save $1,523 AUD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,907 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436047412 or 436047412. Listed at 11 retailers as of October 30, 2026, with prices from $384 to $1,907, a $1,523 spread on the same certified stone. MOH London lists it at $1,907. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.2°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436047412
Dimensions7.74 × 4.15 × 2.62 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
7.74 mm4.15 mm0.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436047412
Side View
Table 56.0%Crown 34.2°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 63.1%

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: Oct 30
Current: $1,907 AUD|Low: $369 AUD|High: $1,931 AUD|Avg: $921 AUD|-1.0%
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 1, 2026
Retailer 8$384 AUD
Retailer 3$429 AUD
Retailer 13$446 AUD
Retailer 10$475 AUD
Retailer 14$475 AUD
Retailer 9$498 AUD
Retailer 4$705 AUD
Retailer 12$790 AUD
Retailer 2$888 AUD
Retailer 5$975 AUD
Retailer 7$1,462 AUD
Retailer 11$1,530 AUD
MOH London$1,907 AUD
Retailer 6$1,913 AUD

21 data points across 14 retailers

11 retailers$384 AUD to $1,907 AUD

A
Cheapest Retailer
-
$384 AUD
$270 USD
A
Retailer 2
-
$429 AUD
$301 USD
View
Final sale: no returns
B+
Retailer 3
-
$446 AUD
$313 USD
View
B+
Retailer 4
-
$475 AUD
$334 USD
View
Retailer 5
-
$475 AUD
$334 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$498 AUD
$350 USD
View
B
Retailer 7
-
$790 AUD
$555 USD
View
Retailer 8
-
$888 AUD
€594 EUR
View
Price last confirmed 7 days ago
B
Retailer 9
-
$1,462 AUD
$1,027 USD
View
B
Retailer 10
-
$1,530 AUD
$1,075 USD
View
Most Expensive
B
MOH London
LG436047412 · Nov 1
$1,907 AUD
£1,055 GBP
View
10 more retailers have this diamond
Prices start from $384 AUDSave up to $1,523 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
0.50ct Marquise
$384 AUD