Marquise|Lab Grown|IGI

1.56ct E SI2 Marquise Lab Grown Diamond

ID • E/SI2 • IGI LG849619999

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG849619999

Diamond specifications and retailer prices

From $422 USD
As of October 27, 2026
Save $744 USD (64%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,166 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.56ct lab-grown marquise diamond

This 1.56ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG849619999 or 849619999. Listed at 4 retailers as of October 27, 2026, with prices from $422 to $1,166, a $744 spread on the same certified stone. MOH London lists it at $1,166. 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

1.56
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849619999
Dimensions12.26 × 5.85 × 3.79 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.26 mm5.85 mm1.56 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849619999
Side View
Table 59.0%Crown 34.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,166 USD|Low: $422 USD|High: $1,166 USD|Avg: $605 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 3$422 USD
Retailer 4$431 USD
Retailer 2$453 USD
MOH London$1,166 USD

5 data points across 4 retailers

4 retailers$422 USD to $1,166 USD

A
Cheapest Retailer
-
$422 USD
B+
Retailer 2
-
$431 USD
View
A
Retailer 3
-
$453 USD
£357 GBP
View
Most Expensive
B
MOH London
LG849619999 · Oct 29
$1,166 USD
£918 GBP
View
3 more retailers have this diamond
Prices start from $422 USDSave up to $744 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
1.56ct Marquise
$422 USD