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Emerald|Lab Grown|IGI

1.00ct H SI2 Emerald Lab Grown Diamond

ID • H/SI2 • IGI LG512220558

Shape and cutting style on the report: Emerald cut

Certificate IGI LG512220558

Diamond specifications and retailer prices

From £369 GBP
As of November 6, 2026
Save £1,534 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,902 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512220558 or 512220558. Listed at 10 retailers as of November 5, 2026, with prices from £369 to £1,902, a £1,534 spread on the same certified stone. MOH London lists it at £1,902. 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
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle25.4°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220558
Dimensions7.19 × 4.63 × 2.85 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
7.19 mm4.63 mm1.00 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220558
Side View
Table 68.5%Crown 25.4°Girdle: MED-STKPavilion 35.3°Culet: LNGDepth 61.6%

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: £1,902 GBP|Low: £354 GBP|High: £1,931 GBP|Avg: £779 GBP|-0.2%
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 5, 2026
Retailer 6£369 GBP
Retailer 12£412 GBP
Retailer 11£412 GBP
Retailer 2£438 GBP
Retailer 7£457 GBP
Retailer 10£457 GBP
Retailer 8£711 GBP
Retailer 3£775 GBP
Retailer 4£956 GBP
Retailer 9£1,201 GBP
Retailer 5£1,228 GBP
MOH London£1,902 GBP

17 data points across 12 retailers

10 retailers£369 GBP to £1,902 GBP

A
Cheapest Retailer
-
£369 GBP
A
Retailer 2
-
£412 GBP
View
Final sale: no returns
A
Retailer 3
-
£412 GBP
View
A
Retailer 4
-
£438 GBP
View
Retailer 5
-
£457 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
-
£457 GBP
View
B+
Retailer 7
-
£711 GBP
View
B
Retailer 8
-
£1,201 GBP
View
B
Retailer 9
-
£1,228 GBP
View
Most Expensive
B
MOH London
LG512220558 · Nov 5
£1,902 GBP
View
9 more retailers have this diamond
Prices start from £369 GBPSave up to £1,534 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
£369 GBP