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Emerald|Lab Grown|IGI

1.50ct D SI1 Emerald Lab Grown Diamond

GD • D/SI1 • IGI LG472177470

Shape and cutting style on the report: Emerald cut

Certificate IGI LG472177470

Diamond specifications and retailer prices

From £343 GBP
As of November 4, 2026
Save £456 GBP (57%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £799 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown emerald diamond

This 1.5ct lab-grown emerald sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG472177470 or 472177470. Listed at 5 retailers as of November 4, 2026, with prices from £343 to £799, a £456 spread on the same certified stone. MOH London lists it at £799. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472177470
Dimensions8.21 × 5.13 × 3.49 mm
L/W Ratio1.60
Culet sizeLong
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
8.21 mm5.13 mm1.50 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG472177470
Side View
Table 63.5%Crown 33.3°Girdle: Slightly ThickPavilion 38.8°Culet: LNGDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £799 GBP|Low: £325 GBP|High: £845 GBP|Avg: £542 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 4£343 GBP
Retailer 2£367 GBP
Retailer 5£444 GBP
Retailer 3£765 GBP
MOH London£799 GBP

43 data points across 5 retailers

5 retailers£343 GBP to £799 GBP

B+
Cheapest Retailer
-
£343 GBP
B+
Retailer 2
-
£367 GBP
View
B
Retailer 3
-
£444 GBP
View
Retailer 4
-
£765 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
LG472177470 · Nov 5
£799 GBP
View
4 more retailers have this diamond
Prices start from £343 GBPSave up to £456 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.

B+
1.50ct Emerald
£343 GBP