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Marquise|Lab Grown|IGI

4.06ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG850602223

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG850602223

Diamond specifications and retailer prices

From $737 AUD
$518 USD
As of October 30, 2026
Save $2,238 AUD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,975 AUD at Taylor and Hart · As of October 29, 2026
View at Taylor and Hart

About this 4.06ct lab-grown marquise diamond

This 4.06ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG850602223 or 850602223. Listed at 5 retailers as of October 29, 2026, with prices from $737 to $2,975, a $2,238 spread on the same certified stone. Taylor and Hart lists it at $2,975. 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

4.06
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850602223
Dimensions15.77 × 8.28 × 5.23 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.77 mm8.28 mm4.06 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850602223
Side View
Table 57.0%Crown 37.8°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 63.2%

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: $2,017 AUD|Low: $737 AUD|High: $2,975 AUD|Avg: $1,800 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
October 31, 2026
Retailer 3$737 AUD
Retailer 2$1,374 AUD
Retailer 4$1,418 AUD
Retailer 1$2,017 AUD
Taylor and Hart$2,975 AUD

3 data points across 5 retailers

5 retailers$737 AUD to $2,975 AUD

A
Cheapest Retailer
-
$737 AUD
$518 USD
B+
Retailer 2
-
$1,374 AUD
$965 USD
View
B+
Retailer 3
-
$1,418 AUD
£784 GBP
View
B+
Retailer 4
-
$2,017 AUD
$1,417 USD
View
Most Expensive
B
Taylor and Hart
ILW12YG · Oct 29
$2,975 AUD
$2,090 USD
View
4 more retailers have this diamond
Prices start from $737 AUDSave up to $2,238 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
4.06ct Marquise
$737 AUD