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Emerald|Lab Grown|IGI

1.00ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG522254253

Shape and cutting style on the report: Emerald cut

Certificate IGI LG522254253

Diamond specifications and retailer prices

From £150 GBP
As of November 6, 2026
Save £717 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £867 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown emerald diamond

This 1ct lab-grown emerald sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522254253 or 522254253. Listed at 13 retailers as of November 5, 2026, with prices from £150 to £867, a £717 spread on the same certified stone. MOH London lists it at £867. 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

1.00
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.2°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522254253
Dimensions7.05 × 4.52 × 3.04 mm
L/W Ratio1.56
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
7.05 mm4.52 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG522254253
Side View
Table 69.5%Crown 32.2°Girdle: MED-STKPavilion 36.2°Culet: LNGDepth 67.3%

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 6
Current: £867 GBP|Low: £144 GBP|High: £879 GBP|Avg: £357 GBP|-1.3%
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 6£150 GBP
Retailer 4£167 GBP
Retailer 12£174 GBP
Retailer 8£186 GBP
Retailer 11£186 GBP
Retailer 9£322 GBP
Retailer 2£337 GBP
Retailer 3£361 GBP
Retailer 7£409 GBP
Retailer 10£598 GBP
Retailer 5£600 GBP
MOH London£867 GBP

45 data points across 12 retailers

13 retailers£150 GBP to £867 GBP

A
Cheapest Retailer
-
£150 GBP
A
Retailer 2
-
£167 GBP
View
Final sale: no returns
A
Retailer 3
-
£174 GBP
View
A
Retailer 4
-
£186 GBP
View
Retailer 5
-
£186 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£322 GBP
View
B+
Retailer 7
-
£337 GBP
View
B+
Retailer 8
-
£351 GBP
View
B+
Retailer 9
-
£361 GBP
View
B+
Retailer 10
-
£409 GBP
View
B
Retailer 11
-
£598 GBP
View
B
Retailer 12
-
£600 GBP
View
Most Expensive
B
MOH London
LG522254253 · Nov 5
£867 GBP
View
12 more retailers have this diamond
Prices start from £150 GBPSave up to £717 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
1.00ct Emerald
£150 GBP