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Emerald|Lab Grown|IGI

1.00ct H SI1 Emerald Lab Grown Diamond

ID • H/SI1 • IGI LG436045733

Shape and cutting style on the report: Emerald cut

Certificate IGI LG436045733

Diamond specifications and retailer prices

From £424 GBP
As of November 6, 2026
Save £1,855 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,280 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436045733 or 436045733. Listed at 12 retailers as of November 5, 2026, with prices from £424 to £2,280, a £1,855 spread on the same certified stone. MOH London lists it at £2,280. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle24°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045733
Dimensions7.07 × 4.83 × 2.89 mm
L/W Ratio1.46
Culet sizeLong
Cert comments
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Top View
7.07 mm4.83 mm1.00 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045733
Side View
Table 68.0%Crown 24°Girdle: Slightly ThickPavilion 35.4°Culet: LNGDepth 59.8%

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 6
Current: £2,280 GBP|Low: £408 GBP|High: £2,313 GBP|Avg: £951 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
Retailer 13
Retailer 14
November 5, 2026
Retailer 9£424 GBP
Retailer 2£431 GBP
Retailer 3£476 GBP
Retailer 14£476 GBP
Retailer 10£527 GBP
Retailer 13£527 GBP
Retailer 7£624 GBP
Retailer 11£811 GBP
Retailer 5£837 GBP
Retailer 8£1,306 GBP
Retailer 12£1,385 GBP
Retailer 6£1,410 GBP
Retailer 4£1,629 GBP
MOH London£2,280 GBP

21 data points across 14 retailers

12 retailers£424 GBP to £2,280 GBP

A
Cheapest Retailer
-
£424 GBP
A
Retailer 2
-
£431 GBP
View
A
Retailer 3
-
£476 GBP
View
Final sale: no returns
A
Retailer 4
-
£476 GBP
View
Retailer 5
-
£527 GBP
View
Price last confirmed 21 days ago
B+
Retailer 6
-
£527 GBP
View
A
Retailer 7
-
£624 GBP
View
B+
Retailer 8
-
£811 GBP
View
B
Retailer 9
-
£1,306 GBP
View
B
Retailer 10
-
£1,385 GBP
View
B
Retailer 11
-
£1,629 GBP
View
Most Expensive
B
MOH London
LG436045733 · Nov 5
£2,280 GBP
View
11 more retailers have this diamond
Prices start from £424 GBPSave up to £1,855 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
£424 GBP