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Emerald|Lab Grown|IGI

1.50ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG497143870

Shape and cutting style on the report: Emerald cut

Certificate IGI LG497143870

Diamond specifications and retailer prices

From £1,237 GBP
$1,658 USD
As of October 30, 2026
Save £1,018 GBP (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,691 GBP at NZ Jewellers · As of October 31, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG497143870 or 497143870. Listed at 12 retailers as of October 26, 2026, with a 82% 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle23.2°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497143870
Dimensions7.85 × 5.49 × 3.42 mm
L/W Ratio1.43
Culet sizeLong
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
7.85 mm5.49 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497143870
Side View
Table 65.0%Crown 23.2°Girdle: MED-STKPavilion 36.5°Culet: LNGDepth 62.3%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: £2,691 GBP|Low: £989 GBP|High: £4,149 GBP|Avg: £1,903 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
November 1, 2026
Retailer 7£1,237 GBP
Retailer 8£1,276 GBP
Retailer 12£1,346 GBP
Retailer 3£1,385 GBP
Retailer 9£1,435 GBP
Retailer 11£1,435 GBP
Retailer 4£1,564 GBP
Retailer 2£2,034 GBP
Retailer 10£2,255 GBP
Retailer 6£2,475 GBP
NZ Jewellers£2,691 GBP
Retailer 5£4,105 GBP

43 data points across 12 retailers

12 retailers£1,237 GBP to £2,255 GBP

B
Cheapest Retailer
-
£1,237 GBP
$1,658 USD
B
Retailer 2
-
£1,276 GBP
$1,710 USD
View
B
Retailer 3
-
£1,346 GBP
$1,804 USD
View
B
Retailer 4
-
£1,385 GBP
$1,856 USD
View
Final sale: no returns
B
Retailer 5
-
£1,435 GBP
$1,923 USD
View
Retailer 6
-
£1,435 GBP
$1,923 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
£1,564 GBP
$2,095 USD
View
B
Retailer 8
-
£2,034 GBP
View
B
Retailer 9
-
£2,255 GBP
$3,022 USD
View
Retailer 10
-
£2,475 GBP
$3,316 USD
View
Price under review
Most Expensive
NZ Jewellers
ca596d35-3d50-4a34-8a56-c6dd79f3aa0e · Oct 31
£2,691 GBP
$3,605 USD
View
Price under review
10 more retailers have this diamond
Prices start from £1,237 GBPSave up to £1,018 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
£1,237 GBP