Emerald|Lab Grown|IGI

0.42ct E IF Emerald Lab Grown Diamond

EX • E/IF • IGI LG825686719

Shape and cutting style on the report: Emerald cut

Certificate IGI LG825686719

Diamond specifications and retailer prices

From £145 GBP
$193 USD
As of October 28, 2026
Save £689 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £834 GBP at MOH London · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825686719 or 825686719. Listed at 17 retailers as of October 28, 2026, with prices from £145 to £834, a £689 spread on the same certified stone. MOH London lists it at £834. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.42
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825686719
Dimensions5.23 × 3.49 × 2.37 mm
L/W Ratio1.50
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.23 mm3.49 mm0.42 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825686719
Side View
Table 66.0%Crown 34.4°Girdle: Slightly ThickPavilion 35.2°Culet: LargeDepth 67.9%

Caratlytics Score

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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 28
Current: £834 GBP|Low: £137 GBP|High: £834 GBP|Avg: £365 GBP|+17.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 4£145 GBP
Retailer 15£171 GBP
Retailer 12£240 GBP
Retailer 10£288 GBP
Retailer 9£292 GBP
Retailer 16£293 GBP
Retailer 14£320 GBP
Retailer 2£321 GBP
Retailer 5£355 GBP
Retailer 13£360 GBP
Retailer 7£403 GBP
Retailer 6£462 GBP
Retailer 8£488 GBP
Retailer 11£577 GBP
Retailer 3£700 GBP
MOH London£834 GBP

20 data points across 16 retailers

17 retailers£145 GBP to £834 GBP

A
Retailer 1
-
£122 GBP
$163 USD
Price last confirmed 36 days ago
A
Retailer 2
-
£145 GBP
$193 USD
View
Final sale: no returns
A
Retailer 3
-
£150 GBP
$200 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
£171 GBP
$228 USD
View
A
Retailer 5
-
£240 GBP
$320 USD
View
B+
Retailer 6
-
£288 GBP
$384 USD
View
B+
Retailer 7
-
£292 GBP
€370 EUR
View
B+
Retailer 8
-
£293 GBP
$390 USD
View
B+
Retailer 9
-
£320 GBP
ZAR 6,894 ZAR
View
B+
Retailer 10
-
£321 GBP
View
B+
Retailer 11
-
£355 GBP
$473 USD
View
B+
Retailer 12
-
£360 GBP
View
B+
Retailer 13
-
£403 GBP
A$825 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
£462 GBP
A$947 AUD
View
B
Retailer 15
-
£577 GBP
$768 USD
View
B
Retailer 16
-
£700 GBP
$932 USD
View
Most Expensive
B
MOH London
LG825686719 · Oct 29
£834 GBP
View
16 more retailers have this diamond
Prices start from £145 GBPSave up to £689 GBP

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 GBP