CaratHunter
Plans
Emerald|Lab Grown|IGI

1.43ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG526279558

Shape and cutting style on the report: Emerald cut

Certificate IGI LG526279558

Diamond specifications and retailer prices

From £206 GBP
As of November 6, 2026
Save £815 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,021 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.43ct lab-grown emerald diamond

This 1.43ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG526279558 or 526279558. Listed at 13 retailers as of November 2, 2026, with prices from £206 to £1,021, a £815 spread on the same certified stone. MOH London lists it at £1,021. 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

1.43
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle20.5°
Pavilion angle47.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526279558
Dimensions7.80 × 5.27 × 3.56 mm
L/W Ratio1.48
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.80 mm5.27 mm1.43 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526279558
Side View
Table 68.5%Crown 20.5°Girdle: STK-THKPavilion 47.5°Culet: LNGDepth 67.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,021 GBP|Low: £198 GBP|High: £1,033 GBP|Avg: £516 GBP|+3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7£206 GBP
Retailer 3£238 GBP
Retailer 9£255 GBP
Retailer 12£255 GBP
Retailer 5£371 GBP
Retailer 10£421 GBP
Retailer 2£444 GBP
Retailer 4£447 GBP
Retailer 6£783 GBP
Retailer 11£819 GBP
Retailer 8£1,018 GBP
MOH London£1,021 GBP

46 data points across 12 retailers

13 retailers£206 GBP to £1,021 GBP

A
Cheapest Retailer
-
£206 GBP
A
Retailer 2
-
£238 GBP
View
A
Retailer 3
-
£255 GBP
View
Retailer 4
-
£255 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£371 GBP
View
B+
Retailer 6
-
£421 GBP
View
B+
Retailer 7
-
£444 GBP
View
B+
Retailer 8
-
£447 GBP
View
B+
Retailer 9
-
£504 GBP
View
B
Retailer 10
-
£783 GBP
View
B
Retailer 11
-
£819 GBP
View
B
Retailer 12
-
£1,018 GBP
View
Most Expensive
B
MOH London
LG526279558 · Nov 2
£1,021 GBP
View
12 more retailers have this diamond
Prices start from £206 GBPSave up to £815 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
1.43ct Emerald
£206 GBP