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Emerald|Lab Grown|IGI

1.59ct E SI1 Emerald Lab Grown Diamond

EX • E/SI1 • IGI LG645471091

Shape and cutting style on the report: Emerald cut

Certificate IGI LG645471091

Diamond specifications and retailer prices

From £140 GBP
$186 USD
As of October 27, 2026
Save £1,204 GBP (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,344 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG645471091 or 645471091. Listed at 11 retailers as of October 27, 2026, with prices from £140 to £1,344, a £1,204 spread on the same certified stone. Do Amore Diamonds lists it at £1,344. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645471091
Dimensions7.99 × 5.50 × 3.78 mm
L/W Ratio1.45
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.99 mm5.50 mm1.59 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645471091
Side View
Table 65.0%Crown 33.8°Girdle: Slightly ThickPavilion 40.2°Culet: LNGDepth 68.7%

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: Oct 27
Current: £1,344 GBP|Low: £162 GBP|High: £9,074 GBP|Avg: £1,709 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 8£162 GBP
Retailer 7£173 GBP
Retailer 11£234 GBP
Retailer 9£311 GBP
Retailer 2£351 GBP
Retailer 10£389 GBP
Retailer 6£559 GBP
Retailer 5£900 GBP
Do Amore Diamonds£1,344 GBP
Retailer 4£1,449 GBP
Retailer 12£4,318 GBP
Retailer 3£9,074 GBP

43 data points across 12 retailers

11 retailers£140 GBP to £1,344 GBP

A
Cheapest Retailer
-
£140 GBP
$186 USD
A
Retailer 2
-
£162 GBP
$216 USD
View
A
Retailer 3
-
£173 GBP
$231 USD
View
A
Retailer 4
-
£173 GBP
$231 USD
View
B+
Retailer 5
-
£234 GBP
$312 USD
View
A
Retailer 6
-
£351 GBP
View
B+
Retailer 7
-
£389 GBP
$518 USD
View
B
Retailer 8
-
£559 GBP
$745 USD
View
B
Retailer 9
-
£616 GBP
$820 USD
View
B
Retailer 10
-
£900 GBP
View
Most Expensive
B
Do Amore Diamonds
27-E5F8C7ABF · Oct 29
£1,344 GBP
$1,790 USD
View
10 more retailers have this diamond
Prices start from £140 GBPSave up to £1,204 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
£140 GBP