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Emerald|Lab Grown|IGI

1.25ct F VS1 Emerald Lab Grown Diamond

VG • F/VS1 • IGI LG839603145

Shape and cutting style on the report: Emerald cut

Certificate IGI LG839603145

Diamond specifications and retailer prices

From £220 GBP
As of November 4, 2026
Save £622 GBP (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £842 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.25ct lab-grown emerald diamond

This 1.25ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG839603145 or 839603145. Listed at 8 retailers as of November 2, 2026, with prices from £220 to £842, a £622 spread on the same certified stone. MOH London lists it at £842. 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

1.25
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839603145
Dimensions7.22 × 5.07 × 3.36 mm
L/W Ratio1.42
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.22 mm5.07 mm1.25 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839603145
Side View
Table 64.0%Crown 35.1°Girdle: MediumPavilion 38.9°Culet: LargeDepth 66.3%

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: £842 GBP|Low: £220 GBP|High: £15,768 GBP|Avg: £4,105 GBP|-94.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6£220 GBP
Retailer 3£274 GBP
Retailer 4£310 GBP
Retailer 2£325 GBP
Retailer 7£362 GBP
Retailer 5£492 GBP
Retailer 8£707 GBP
MOH London£842 GBP
Retailer 9£15,768 GBP

28 data points across 9 retailers

8 retailers£220 GBP to £842 GBP

B+
Cheapest Retailer
-
£220 GBP
A
Retailer 2
-
£274 GBP
View
B+
Retailer 3
-
£310 GBP
View
A
Retailer 4
-
£325 GBP
View
B+
Retailer 5
-
£362 GBP
View
Retailer 6
-
£492 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£707 GBP
View
Most Expensive
B
MOH London
LG839603145 · Nov 2
£842 GBP
View
7 more retailers have this diamond
Prices start from £220 GBPSave up to £622 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
1.25ct Emerald
£220 GBP