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Emerald|Lab Grown|IGI

1.05ct E SI1 Emerald Lab Grown Diamond

GD • E/SI1 • IGI LG840620554

Shape and cutting style on the report: Emerald cut

Certificate IGI LG840620554

Diamond specifications and retailer prices

From £236 GBP
As of November 6, 2026
Save £405 GBP (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £641 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.05ct lab-grown emerald diamond

This 1.05ct lab-grown emerald sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG840620554 or 840620554. Listed at 7 retailers as of November 4, 2026, with prices from £236 to £641, a £405 spread on the same certified stone. MOH London lists it at £641. 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

1.05
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle45°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840620554
Dimensions6.73 × 4.87 × 3.30 mm
L/W Ratio1.38
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
6.73 mm4.87 mm1.05 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840620554
Side View
Table 67.0%Crown 33.8°Girdle: MED-STKPavilion 45°Culet: LargeDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £641 GBP|Low: £216 GBP|High: £643 GBP|Avg: £344 GBP|+4.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6£227 GBP
Retailer 2£236 GBP
Retailer 5£252 GBP
Retailer 8£254 GBP
Retailer 9£345 GBP
Retailer 7£369 GBP
Retailer 3£446 GBP
Retailer 4£482 GBP
MOH London£641 GBP

11 data points across 9 retailers

7 retailers£236 GBP to £641 GBP

B+
Cheapest Retailer
-
£236 GBP
B+
Retailer 2
-
£252 GBP
View
Retailer 3
-
£254 GBP
View
Price last confirmed 25 days ago
Retailer 4
-
£345 GBP
View
Price last confirmed 30 days ago
B
Retailer 5
-
£446 GBP
View
B
Retailer 6
-
£482 GBP
View
Most Expensive
C
MOH London
LG840620554 · Nov 4
£641 GBP
View
6 more retailers have this diamond
Prices start from £236 GBPSave up to £405 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+
1.05ct Emerald
£236 GBP