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 $145 NZD
$82 USD
As of October 29, 2026
Save $864 NZD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,010 NZD 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 $145 to $1,010, a $864 spread on the same certified stone. MOH London lists it at $1,010. 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
Colour
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

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 29
Current: $1,010 NZD|Low: $151 NZD|High: $1,393 NZD|Avg: $533 NZD|-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$151 NZD
Retailer 3$225 NZD
Retailer 2$291 NZD
Retailer 7$330 NZD
Retailer 4$331 NZD
Retailer 5$346 NZD
Retailer 6$550 NZD
Retailer 9$550 NZD
MOH London$1,010 NZD

30 data points across 9 retailers

15 retailers$145 NZD to $1,010 NZD

Retailer 1
-
$128 NZD
$72 USD
Price last confirmed 9 days ago
A
Retailer 2
-
$145 NZD
$82 USD
View
Retailer 3
-
$151 NZD
$85 USD
View
Price last confirmed 22 days ago
Retailer 4
-
$176 NZD
$99 USD
View
Price last confirmed 23 days ago
Retailer 5
-
$199 NZD
$112 USD
View
Price last confirmed 34 days ago
A
Retailer 6
-
$225 NZD
£100 GBP
View
A
Retailer 7
-
$291 NZD
€156 EUR
View
Retailer 8
-
$324 NZD
£144 GBP
View
Price last confirmed 21 days ago
Retailer 9
-
$330 NZD
$186 USD
View
Price last confirmed 7 days ago
A
Retailer 10
-
$331 NZD
£147 GBP
View
B+
Retailer 11
-
$346 NZD
$195 USD
View
B
Retailer 12
-
$550 NZD
$310 USD
View
Retailer 13
-
$550 NZD
$310 USD
View
Price last confirmed 20 days ago
Retailer 14
-
$601 NZD
$339 USD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
LG816671081 · Oct 26
$1,010 NZD
£448 GBP
View
14 more retailers have this diamond
Prices start from $145 NZDSave up to $864 NZD

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
$145 NZD