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Emerald|Lab Grown|IGI

1.51ct H SI2 Emerald Lab Grown Diamond

ID • H/SI2 • IGI LG436044990

Shape and cutting style on the report: Emerald cut

Certificate IGI LG436044990

Diamond specifications and retailer prices

From £654 GBP
As of November 4, 2026
Save £2,697 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,351 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown emerald diamond

This 1.51ct lab-grown emerald sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436044990 or 436044990. Listed at 10 retailers as of November 4, 2026, with prices from £654 to £3,351, a £2,697 spread on the same certified stone. MOH London lists it at £3,351. 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

1.51
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle24.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436044990
Dimensions7.48 × 5.56 × 3.74 mm
L/W Ratio1.35
Culet sizeLong
Cert comments
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Top View
7.48 mm5.56 mm1.51 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436044990
Side View
Table 67.0%Crown 24.7°Girdle: MediumPavilion 41.1°Culet: LNGDepth 67.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,351 GBP|Low: £654 GBP|High: £3,404 GBP|Avg: £1,540 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 2£654 GBP
Retailer 6£901 GBP
Retailer 11£981 GBP
Retailer 12£1,009 GBP
Retailer 7£1,045 GBP
Retailer 10£1,045 GBP
Retailer 4£1,233 GBP
Retailer 3£1,477 GBP
Retailer 8£1,658 GBP
Retailer 9£1,960 GBP
Retailer 13£2,003 GBP
Retailer 5£2,340 GBP
MOH London£3,351 GBP

18 data points across 13 retailers

10 retailers£654 GBP to £3,351 GBP

B+
Cheapest Retailer
-
£654 GBP
B
Retailer 2
-
£901 GBP
View
B
Retailer 3
-
£981 GBP
View
B+
Retailer 4
-
£1,009 GBP
View
Final sale: no returns
B
Retailer 5
-
£1,045 GBP
View
Retailer 6
-
£1,045 GBP
View
Price last confirmed 25 days ago
B
Retailer 7
-
£1,658 GBP
View
B
Retailer 8
-
£1,960 GBP
View
B
Retailer 9
-
£2,003 GBP
View
Most Expensive
B
MOH London
LG436044990 · Nov 5
£3,351 GBP
View
9 more retailers have this diamond
Prices start from £654 GBPSave up to £2,697 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.

B+
1.51ct Emerald
£654 GBP