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Emerald|Lab Grown|IGI

1.04ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • IGI LG436045300

Shape and cutting style on the report: Emerald cut

Certificate IGI LG436045300

Diamond specifications and retailer prices

From £364 GBP
As of November 4, 2026
Save £2,655 GBP (88%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,019 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.04ct lab-grown emerald diamond

This 1.04ct lab-grown emerald sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436045300 or 436045300. Listed at 10 retailers as of November 3, 2026, with prices from £364 to £3,019, a £2,655 spread on the same certified stone. MOH London lists it at £3,019. 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

1.04
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle17.2°
Pavilion angle42.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045300
Dimensions6.77 × 4.70 × 3.19 mm
L/W Ratio1.44
Culet sizeLong
Cert comments
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Top View
6.77 mm4.70 mm1.04 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045300
Side View
Table 66.0%Crown 17.2°Girdle: ThickPavilion 42.9°Culet: LNGDepth 67.9%

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 4
Current: £3,019 GBP|Low: £364 GBP|High: £3,059 GBP|Avg: £1,243 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 4£364 GBP
Retailer 2£768 GBP
Retailer 9£834 GBP
Retailer 5£890 GBP
Retailer 8£890 GBP
Retailer 11£1,018 GBP
Retailer 3£1,275 GBP
Retailer 6£1,420 GBP
Retailer 7£1,668 GBP
Retailer 10£1,860 GBP
MOH London£3,019 GBP

15 data points across 11 retailers

10 retailers£364 GBP to £3,019 GBP

A
Cheapest Retailer
-
£364 GBP
B+
Retailer 2
-
£768 GBP
View
B+
Retailer 3
-
£834 GBP
View
B+
Retailer 4
-
£890 GBP
View
Retailer 5
-
£890 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£1,018 GBP
View
B
Retailer 7
-
£1,420 GBP
View
B
Retailer 8
-
£1,668 GBP
View
B
Retailer 9
-
£1,860 GBP
View
Most Expensive
B
MOH London
LG436045300 · Nov 3
£3,019 GBP
View
9 more retailers have this diamond
Prices start from £364 GBPSave up to £2,655 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
1.04ct Emerald
£364 GBP