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Emerald|Lab Grown|IGI

1.59ct H SI1 Emerald Lab Grown Diamond

EX • H/SI1 • IGI LG605332820

Shape and cutting style on the report: Emerald cut

Certificate IGI LG605332820

Diamond specifications and retailer prices

From £203 GBP
As of November 4, 2026
Save £986 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,189 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.59ct lab-grown emerald diamond

This 1.59ct lab-grown emerald sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG605332820 or 605332820. Listed at 15 retailers as of November 4, 2026, with prices from £203 to £1,189, a £986 spread on the same certified stone. Brilliant Earth lists it at £1,189. 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

1.59
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605332820
Dimensions7.83 × 5.43 × 3.73 mm
L/W Ratio1.44
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
7.83 mm5.43 mm1.59 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605332820
Side View
Table 63.0%Crown 35.1°Girdle: Slightly ThickPavilion 40.9°Culet: LNGDepth 68.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,189 GBP|Low: £174 GBP|High: £1,219 GBP|Avg: £542 GBP|-2.4%
Brilliant Earth
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£181 GBP
Retailer 14£203 GBP
Retailer 10£225 GBP
Retailer 12£225 GBP
Retailer 4£358 GBP
Retailer 8£374 GBP
Retailer 11£377 GBP
Retailer 13£469 GBP
Retailer 5£597 GBP
Retailer 7£725 GBP
Retailer 6£761 GBP
Retailer 2£899 GBP
Retailer 3£991 GBP
Brilliant Earth£1,189 GBP

24 data points across 14 retailers

15 retailers£203 GBP to £1,189 GBP

Retailer 1
-
£181 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
£203 GBP
View
Final sale: no returns
Retailer 3
-
£210 GBP
View
Price last confirmed 17 days ago
Retailer 4
-
£225 GBP
View
Price last confirmed 16 days ago
Retailer 5
-
£225 GBP
View
Price last confirmed 21 days ago
Retailer 6
-
£374 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£377 GBP
View
B+
Retailer 8
-
£469 GBP
View
B+
Retailer 9
-
£573 GBP
View
Retailer 10
-
£723 GBP
View
Price last confirmed 16 days ago
B+
Retailer 11
-
£725 GBP
View
B+
Retailer 12
-
£761 GBP
View
B+
Retailer 13
-
£899 GBP
View
B+
Retailer 14
-
£991 GBP
View
Most Expensive
B
Brilliant Earth
20602399A · Nov 4
£1,189 GBP
$1,600 USD
View
14 more retailers have this diamond
Prices start from £203 GBPSave up to £986 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
1.59ct Emerald
£203 GBP