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Emerald|Lab Grown|IGI

1.05ct H SI1 Emerald Lab Grown Diamond

ID • H/SI1 • IGI LG508156278

Shape and cutting style on the report: Emerald cut

Certificate IGI LG508156278

Diamond specifications and retailer prices

From £445 GBP
As of November 6, 2026
Save £1,949 GBP (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,394 GBP at MOH London · As of November 3, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG508156278 or 508156278. Listed at 11 retailers as of November 3, 2026, with prices from £445 to £2,394, a £1,949 spread on the same certified stone. MOH London lists it at £2,394. 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

1.05
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle21.6°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508156278
Dimensions7.30 × 4.71 × 2.94 mm
L/W Ratio1.55
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
7.30 mm4.71 mm1.05 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508156278
Side View
Table 62.5%Crown 21.6°Girdle: Slightly ThickPavilion 34°Culet: LNGDepth 62.4%

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: £2,394 GBP|Low: £427 GBP|High: £2,423 GBP|Avg: £927 GBP
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
November 1, 2026
Retailer 6£445 GBP
Retailer 7£468 GBP
Retailer 13£497 GBP
Retailer 12£498 GBP
Retailer 8£551 GBP
Retailer 11£551 GBP
Retailer 3£646 GBP
Retailer 9£846 GBP
Retailer 4£869 GBP
Retailer 2£1,369 GBP
Retailer 10£1,450 GBP
Retailer 5£1,477 GBP
MOH London£2,394 GBP

16 data points across 13 retailers

11 retailers£445 GBP to £2,394 GBP

A
Cheapest Retailer
-
£445 GBP
A
Retailer 2
-
£468 GBP
View
A
Retailer 3
-
£497 GBP
View
Final sale: no returns
A
Retailer 4
-
£498 GBP
View
A
Retailer 5
-
£551 GBP
View
Retailer 6
-
£551 GBP
View
Price last confirmed 21 days ago
B+
Retailer 7
-
£646 GBP
View
B+
Retailer 8
-
£846 GBP
View
B
Retailer 9
-
£1,369 GBP
View
B
Retailer 10
-
£1,450 GBP
View
Most Expensive
B
MOH London
LG508156278 · Nov 3
£2,394 GBP
View
10 more retailers have this diamond
Prices start from £445 GBPSave up to £1,949 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
1.05ct Emerald
£445 GBP