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Emerald|Lab Grown|IGI

1.51ct F SI1 Emerald Lab Grown Diamond

EX • F/SI1 • IGI LG813617165

Shape and cutting style on the report: Emerald cut

Certificate IGI LG813617165

Diamond specifications and retailer prices

From £125 GBP
As of November 4, 2026
Save £605 GBP (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £729 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct lab-grown emerald diamond

This 1.51ct lab-grown emerald sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG813617165 or 813617165. Listed at 8 retailers as of November 2, 2026, with prices from £125 to £729, a £605 spread on the same certified stone. MOH London lists it at £729. 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

1.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813617165
Dimensions7.72 × 5.50 × 3.63 mm
L/W Ratio1.40
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.72 mm5.50 mm1.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813617165
Side View
Table 68.0%Crown 36.3°Girdle: MediumPavilion 39.9°Culet: LargeDepth 66.0%

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: Nov 4
Current: £729 GBP|Low: £121 GBP|High: £740 GBP|Avg: £407 GBP|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 3£125 GBP
Retailer 7£146 GBP
Retailer 5£270 GBP
Retailer 8£406 GBP
Retailer 4£496 GBP
Retailer 2£524 GBP
Retailer 6£635 GBP
MOH London£729 GBP

22 data points across 8 retailers

8 retailers£125 GBP to £729 GBP

A
Cheapest Retailer
-
£125 GBP
A
Retailer 2
-
£146 GBP
View
Retailer 3
-
£270 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£406 GBP
View
B+
Retailer 5
-
£496 GBP
View
B
Retailer 6
-
£524 GBP
View
Retailer 7
-
£635 GBP
View
Price last confirmed 24 days ago
Most Expensive
B
MOH London
LG813617165 · Nov 2
£729 GBP
View
7 more retailers have this diamond
Prices start from £125 GBPSave up to £605 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
1.51ct Emerald
£125 GBP