Emerald|Lab Grown|IGI

1.00ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG807635509

Shape and cutting style on the report: Emerald cut

Certificate IGI LG807635509

Diamond specifications and retailer prices

From £145 GBP
As of November 4, 2026
Save £212 GBP (59%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £891 GBP at MOH London · As of October 25, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG807635509 or 807635509. Listed at 16 retailers as of November 4, 2026, with a 146% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG807635509
Dimensions7.03 × 4.70 × 3.06 mm
L/W Ratio1.50
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.03 mm4.70 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807635509
Side View
Table 67.0%CrownGirdle: MED-STKPavilionCulet: LargeDepth 65.1%

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 4
Current: £891 GBP|Low: £86 GBP|High: £895 GBP|Avg: £288 GBP|+37.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 16£86 GBP
Retailer 5£96 GBP
Retailer 8£100 GBP
Retailer 10£114 GBP
Retailer 7£145 GBP
Retailer 9£194 GBP
Retailer 13£202 GBP
Retailer 12£215 GBP
Retailer 14£239 GBP
Retailer 11£327 GBP
Retailer 15£343 GBP
Retailer 4£347 GBP
Retailer 2£357 GBP
Retailer 3£385 GBP
Retailer 6£687 GBP
MOH London£891 GBP

38 data points across 16 retailers

16 retailers£145 GBP to £357 GBP

Retailer 1
-
£86 GBP
Price last confirmed 10 days ago
Retailer 2
-
£100 GBP
View
Price last confirmed 13 days ago
Retailer 3
-
£114 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£145 GBP
View
Retailer 5
-
£194 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£202 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
£215 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£239 GBP
View
Retailer 9
-
£252 GBP
View
Price last confirmed 11 days ago
B+
Retailer 10
-
£327 GBP
View
Retailer 11
-
£343 GBP
View
Price last confirmed 12 days ago
Retailer 12
-
£347 GBP
View
Price last confirmed 11 days ago
B+
Retailer 13
-
£357 GBP
View
Retailer 14
-
£385 GBP
View
Price last confirmed 10 days ago
Retailer 15
-
£687 GBP
View
Price last confirmed 12 days ago
Most Expensive
MOH London
LG807635509 · Oct 25
£891 GBP
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from £145 GBPSave up to £212 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+
1.00ct Emerald
£145 GBP