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Marquise|Lab Grown|IGI

3.06ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG840646320

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840646320

Diamond specifications and retailer prices

From $759 USD
As of October 28, 2026
Save $1,116 USD (60%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,875 USD at MOH London · As of October 29, 2026
View at MOH London

About this 3.06ct lab-grown marquise diamond

This 3.06ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG840646320 or 840646320. Listed at 6 retailers as of October 28, 2026, with prices from $759 to $1,875, a $1,116 spread on the same certified stone. MOH London lists it at $1,875. 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

3.06
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.6°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840646320
Dimensions15.13 × 7.99 × 4.42 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.13 mm7.99 mm3.06 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840646320
Side View
Table 61.0%Crown 30.6°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 55.3%

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 28
Current: $1,875 USD|Low: $746 USD|High: $1,887 USD|Avg: $1,144 USD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 6$759 USD
Retailer 3$771 USD
Retailer 2$861 USD
Retailer 4$1,011 USD
Retailer 5$1,572 USD
MOH London$1,875 USD

25 data points across 6 retailers

6 retailers$759 USD to $1,875 USD

B+
Cheapest Retailer
-
$759 USD
A
Retailer 2
-
$771 USD
€734 EUR
View
A
Retailer 3
-
$861 USD
£678 GBP
View
A
Retailer 4
-
$1,011 USD
View
B+
Retailer 5
-
$1,572 USD
View
Most Expensive
B
MOH London
LG840646320 · Oct 29
$1,875 USD
£1,476 GBP
View
5 more retailers have this diamond
Prices start from $759 USDSave up to $1,116 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
3.06ct Marquise
$759 USD