Emerald|Lab Grown|IGI

0.42ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG816671081

Shape and cutting style on the report: Emerald cut

Certificate IGI LG816671081

Diamond specifications and retailer prices

From €73 EUR
$82 USD
As of October 29, 2026
Save €436 EUR (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €509 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 0.42ct lab-grown emerald diamond

This 0.42ct lab-grown emerald sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG816671081 or 816671081. Listed at 15 retailers as of October 26, 2026, with prices from €73 to €509, a €436 spread on the same certified stone. MOH London lists it at €509. 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

0.42
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle30.3°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816671081
Dimensions5.85 × 3.86 × 2.37 mm
L/W Ratio1.52
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.85 mm3.86 mm0.42 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG816671081
Side View
Table 74.0%Crown 30.3°Girdle: ThickPavilion 41.6°Culet: LargeDepth 65.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: €509 EUR|Low: €76 EUR|High: €703 EUR|Avg: €268 EUR|-26.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 8€76 EUR
Retailer 3€113 EUR
Retailer 2€147 EUR
Retailer 7€166 EUR
Retailer 4€167 EUR
Retailer 5€175 EUR
Retailer 6€277 EUR
Retailer 9€277 EUR
MOH London€509 EUR

31 data points across 9 retailers

15 retailers€73 EUR to €509 EUR

Retailer 1
-
€64 EUR
$72 USD
Price last confirmed 8 days ago
A
Retailer 2
-
€73 EUR
$82 USD
View
Retailer 3
-
€76 EUR
$85 USD
View
Price last confirmed 21 days ago
Retailer 4
-
€89 EUR
$99 USD
View
Price last confirmed 22 days ago
Retailer 5
-
€100 EUR
$112 USD
View
Price last confirmed 33 days ago
A
Retailer 6
-
€113 EUR
£100 GBP
View
A
Retailer 7
-
€147 EUR
View
Retailer 8
-
€163 EUR
£144 GBP
View
Price last confirmed 20 days ago
Retailer 9
-
€166 EUR
$186 USD
View
Price last confirmed 7 days ago
A
Retailer 10
-
€167 EUR
£147 GBP
View
B+
Retailer 11
-
€175 EUR
$195 USD
View
B
Retailer 12
-
€277 EUR
$310 USD
View
Retailer 13
-
€277 EUR
$310 USD
View
Price last confirmed 20 days ago
Retailer 14
-
€303 EUR
$339 USD
View
Price last confirmed 24 days ago
Most Expensive
B
MOH London
LG816671081 · Oct 26
€509 EUR
£448 GBP
View
14 more retailers have this diamond
Prices start from €73 EURSave up to €436 EUR

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
0.42ct Emerald
€73 EUR