Emerald|Lab Grown|IGI

1.50ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG496121293

Shape and cutting style on the report: Emerald cut

Certificate IGI LG496121293

Diamond specifications and retailer prices

From £1,285 GBP
As of November 4, 2026
Save £345 GBP (21%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,825 GBP at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 1.5ct lab-grown emerald diamond

This 1.5ct lab-grown emerald sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496121293 or 496121293. Listed at 13 retailers as of November 4, 2026, with a 27% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle24.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496121293
Dimensions7.70 × 5.52 × 3.66 mm
L/W Ratio1.39
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.70 mm5.52 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496121293
Side View
Table 65.5%Crown 24.6°Girdle: MediumPavilion 40°Culet: LargeDepth 66.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,825 GBP|Low: £1,247 GBP|High: £4,355 GBP|Avg: £2,117 GBP
NZ Jewellers
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 10£1,285 GBP
Retailer 9£1,299 GBP
Retailer 4£1,363 GBP
Retailer 14£1,413 GBP
Retailer 3£1,454 GBP
Retailer 11£1,507 GBP
Retailer 13£1,507 GBP
Retailer 5£1,631 GBP
Retailer 7£2,115 GBP
Retailer 12£2,366 GBP
Retailer 8£2,598 GBP
NZ Jewellers£2,825 GBP
Retailer 6£4,121 GBP
Retailer 2£4,292 GBP

43 data points across 14 retailers

13 retailers£1,285 GBP to £1,631 GBP

B
Cheapest Retailer
-
£1,285 GBP
B
Retailer 2
-
£1,299 GBP
View
B
Retailer 3
-
£1,413 GBP
View
B
Retailer 4
-
£1,454 GBP
View
Final sale: no returns
B
Retailer 5
-
£1,507 GBP
View
Retailer 6
-
£1,507 GBP
View
Price last confirmed 25 days ago
B
Retailer 7
-
£1,631 GBP
View
Retailer 8
-
£2,115 GBP
View
Price under review
Retailer 9
-
£2,366 GBP
View
Price under review
Retailer 10
-
£2,598 GBP
View
Price under review
Most Expensive
NZ Jewellers
c592220c-3894-4f27-be22-01b9568398e2 · Nov 6
£2,825 GBP
$3,802 USD
View
Price under review
10 more retailers have this diamond
Prices start from £1,285 GBPSave up to £345 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
1.50ct Emerald
£1,285 GBP