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Emerald|Lab Grown|IGI

0.50ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG754559188

Shape and cutting style on the report: Emerald cut

Certificate IGI LG754559188

Diamond specifications and retailer prices

From £97 GBP
$129 USD
As of October 29, 2026
Save £289 GBP (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,008 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG754559188 or 754559188. Listed at 8 retailers as of October 28, 2026, with a 298% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754559188
Dimensions5.39 × 3.88 × 2.56 mm
L/W Ratio1.39
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.39 mm3.88 mm0.50 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754559188
Side View
Table 66.0%Crown 32.4°Girdle: MediumPavilion 42.4°Culet: LargeDepth 66.0%

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 29
Current: £1,008 GBP|Low: £97 GBP|High: £1,008 GBP|Avg: £286 GBP|+40.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 6£97 GBP
Retailer 4£113 GBP
Retailer 7£120 GBP
Retailer 2£203 GBP
Retailer 3£218 GBP
Retailer 8£228 GBP
Retailer 5£386 GBP
MOH London£1,008 GBP

45 data points across 8 retailers

8 retailers£97 GBP to £386 GBP

A
Cheapest Retailer
-
£97 GBP
$129 USD
A
Retailer 2
-
£113 GBP
$150 USD
View
A
Retailer 3
-
£120 GBP
$160 USD
View
B+
Retailer 4
-
£203 GBP
View
B+
Retailer 5
-
£218 GBP
€277 EUR
View
B+
Retailer 6
-
£228 GBP
$304 USD
View
B
Retailer 7
-
£386 GBP
$514 USD
View
Most Expensive
MOH London
LG754559188 · Oct 29
£1,008 GBP
View
Price under review
7 more retailers have this diamond
Prices start from £97 GBPSave up to £289 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
£97 GBP