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Emerald|Lab Grown|IGI

1.03ct H SI1 Emerald Lab Grown Diamond

ID • H/SI1 • IGI LG436045889

Shape and cutting style on the report: Emerald cut

Certificate IGI LG436045889

Diamond specifications and retailer prices

From £437 GBP
As of November 6, 2026
Save £1,914 GBP (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,351 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.03ct lab-grown emerald diamond

This 1.03ct 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 LG436045889 or 436045889. Listed at 11 retailers as of November 1, 2026, with prices from £437 to £2,351, a £1,914 spread on the same certified stone. MOH London lists it at £2,351. 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

1.03
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle24.6°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045889
Dimensions7.09 × 4.73 × 3.14 mm
L/W Ratio1.50
Culet sizeLong
Cert comments
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Top View
7.09 mm4.73 mm1.03 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045889
Side View
Table 62.5%Crown 24.6°Girdle: Slightly ThickPavilion 38.6°Culet: LNGDepth 66.4%

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: £2,351 GBP|Low: £419 GBP|High: £2,379 GBP|Avg: £909 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£437 GBP
Retailer 7£461 GBP
Retailer 12£489 GBP
Retailer 13£489 GBP
Retailer 8£542 GBP
Retailer 11£542 GBP
Retailer 3£639 GBP
Retailer 9£831 GBP
Retailer 4£857 GBP
Retailer 2£1,343 GBP
Retailer 10£1,424 GBP
Retailer 5£1,450 GBP
MOH London£2,351 GBP

14 data points across 13 retailers

11 retailers£437 GBP to £2,351 GBP

A
Cheapest Retailer
-
£437 GBP
A
Retailer 2
-
£461 GBP
View
A
Retailer 3
-
£489 GBP
View
Final sale: no returns
A
Retailer 4
-
£489 GBP
View
A
Retailer 5
-
£542 GBP
View
Retailer 6
-
£542 GBP
View
Price last confirmed 21 days ago
B+
Retailer 7
-
£639 GBP
View
B+
Retailer 8
-
£831 GBP
View
B
Retailer 9
-
£1,343 GBP
View
B
Retailer 10
-
£1,424 GBP
View
Most Expensive
B
MOH London
LG436045889 · Nov 1
£2,351 GBP
View
10 more retailers have this diamond
Prices start from £437 GBPSave up to £1,914 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
1.03ct Emerald
£437 GBP