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Emerald|Lab Grown|IGI

1.03ct I SI2 Emerald Lab Grown Diamond

ID • I/SI2 • IGI LG436045955

Shape and cutting style on the report: Emerald cut

Certificate IGI LG436045955

Diamond specifications and retailer prices

From £431 GBP
As of November 4, 2026
Save £2,188 GBP (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,619 GBP at MOH London · As of November 5, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436045955 or 436045955. Listed at 10 retailers as of November 4, 2026, with prices from £431 to £2,619, a £2,188 spread on the same certified stone. MOH London lists it at £2,619. 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
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle20.4°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045955
Dimensions6.46 × 4.80 × 3.30 mm
L/W Ratio1.35
Culet sizeLong
Cert comments
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Top View
6.46 mm4.80 mm1.03 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045955
Side View
Table 62.5%Crown 20.4°Girdle: Slightly ThickPavilion 36.8°Culet: LNGDepth 68.8%

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: £2,619 GBP|Low: £431 GBP|High: £2,662 GBP|Avg: £1,213 GBP|-1.3%
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 2£431 GBP
Retailer 6£668 GBP
Retailer 11£727 GBP
Retailer 12£747 GBP
Retailer 7£774 GBP
Retailer 10£774 GBP
Retailer 3£1,135 GBP
Retailer 8£1,243 GBP
Retailer 5£1,723 GBP
Retailer 4£1,733 GBP
Retailer 9£2,178 GBP
MOH London£2,619 GBP

17 data points across 12 retailers

10 retailers£431 GBP to £2,619 GBP

A
Cheapest Retailer
-
£431 GBP
B+
Retailer 2
-
£668 GBP
View
B+
Retailer 3
-
£727 GBP
View
B+
Retailer 4
-
£747 GBP
View
Final sale: no returns
Retailer 5
-
£774 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£774 GBP
View
B
Retailer 7
-
£1,243 GBP
View
B
Retailer 8
-
£1,723 GBP
View
B
Retailer 9
-
£2,178 GBP
View
Most Expensive
B
MOH London
LG436045955 · Nov 5
£2,619 GBP
View
9 more retailers have this diamond
Prices start from £431 GBPSave up to £2,188 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
£431 GBP