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Emerald|Lab Grown|IGI

1.00ct H SI2 Emerald Lab Grown Diamond

ID • H/SI2 • IGI LG425067380

Shape and cutting style on the report: Emerald cut

Certificate IGI LG425067380

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 LG425067380 or 425067380. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle25.8°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067380
Dimensions7.28 × 4.74 × 2.90 mm
L/W Ratio1.54
Culet sizeLong
Cert comments
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Top View
7.28 mm4.74 mm1.00 ctH / SI2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425067380
Side View
Table 57.5%Crown 25.8°Girdle: MED-STKPavilion 32.6°Culet: LNGDepth 61.2%

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: £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£431 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

18 data points across 12 retailers

10 retailers£369 GBP to £1,902 GBP

A
Cheapest Retailer
-
£369 GBP
B+
Retailer 2
-
£412 GBP
View
Final sale: no returns
B+
Retailer 3
-
£412 GBP
View
B+
Retailer 4
-
£431 GBP
View
B+
Retailer 5
-
£457 GBP
View
Retailer 6
-
£457 GBP
View
Price last confirmed 21 days ago
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
LG425067380 · 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