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Emerald|Lab Grown|IGI

0.50ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG823699403

Shape and cutting style on the report: Emerald cut

Certificate IGI LG823699403

Diamond specifications and retailer prices

From £63 GBP
$85 USD
As of October 29, 2026
Save £516 GBP (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £579 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.5ct lab-grown emerald diamond

This 0.5ct lab-grown emerald sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG823699403 or 823699403. Listed at 13 retailers as of October 29, 2026, with prices from £63 to £579, a £516 spread on the same certified stone. MOH London lists it at £579. 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

0.50
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.1°
Pavilion angle42.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823699403
Dimensions5.40 × 3.89 × 2.61 mm
L/W Ratio1.39
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.40 mm3.89 mm0.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG823699403
Side View
Table 62.0%Crown 34.1°Girdle: MED-STKPavilion 42.2°Culet: LargeDepth 67.1%

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: £579 GBP|Low: £63 GBP|High: £583 GBP|Avg: £220 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5£63 GBP
Retailer 6£70 GBP
Retailer 8£84 GBP
Retailer 2£141 GBP
Retailer 9£169 GBP
Retailer 3£189 GBP
Retailer 7£269 GBP
Retailer 4£281 GBP
MOH London£579 GBP

41 data points across 9 retailers

13 retailers£63 GBP to £579 GBP

A
Cheapest Retailer
-
£63 GBP
$85 USD
A
Retailer 2
-
£70 GBP
$94 USD
View
Final sale: no returns
A
Retailer 3
-
£73 GBP
$98 USD
View
A
Retailer 4
-
£84 GBP
$112 USD
View
A
Retailer 5
-
£84 GBP
$112 USD
View
B+
Retailer 6
-
£141 GBP
View
B+
Retailer 7
-
£169 GBP
$226 USD
View
B+
Retailer 8
-
£189 GBP
View
B
Retailer 9
-
£252 GBP
$337 USD
View
B
Retailer 10
-
£269 GBP
$360 USD
View
B
Retailer 11
-
£281 GBP
$376 USD
View
B
Retailer 12
-
£296 GBP
$397 USD
View
Most Expensive
B
MOH London
LG823699403 · Oct 29
£579 GBP
View
12 more retailers have this diamond
Prices start from £63 GBPSave up to £516 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
0.50ct Emerald
£63 GBP