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Emerald|Lab Grown|IGI

1.58ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG669437941

Shape and cutting style on the report: Emerald cut

Certificate IGI LG669437941

Diamond specifications and retailer prices

From £117 GBP
$157 USD
As of November 1, 2026
Save £846 GBP (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £963 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.58ct lab-grown emerald diamond

This 1.58ct 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 LG669437941 or 669437941. Listed at 14 retailers as of October 31, 2026, with prices from £117 to £963, a £846 spread on the same certified stone. Brilliant Earth lists it at £963. 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

1.58
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669437941
Dimensions8.58 × 5.22 × 3.53 mm
L/W Ratio1.64
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.58 mm5.22 mm1.58 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669437941
Side View
Table 64.0%Crown 36.8°Girdle: MediumPavilion 41°Culet: LNGDepth 67.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £963 GBP|Low: £112 GBP|High: £985 GBP|Avg: £378 GBP
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 1, 2026
Retailer 12£117 GBP
Retailer 5£136 GBP
Retailer 4£145 GBP
Retailer 13£145 GBP
Retailer 2£254 GBP
Retailer 9£262 GBP
Retailer 14£263 GBP
Retailer 7£277 GBP
Retailer 6£343 GBP
Retailer 3£466 GBP
Retailer 11£492 GBP
Retailer 10£616 GBP
Retailer 8£681 GBP
Brilliant Earth£963 GBP

43 data points across 14 retailers

14 retailers£117 GBP to £963 GBP

A
Cheapest Retailer
-
£117 GBP
$157 USD
A
Retailer 2
-
£136 GBP
$182 USD
View
A
Retailer 3
-
£145 GBP
$194 USD
View
Retailer 4
-
£145 GBP
$194 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£254 GBP
View
A
Retailer 6
-
£262 GBP
View
B+
Retailer 7
-
£263 GBP
$353 USD
View
A
Retailer 8
-
£277 GBP
€353 EUR
View
A
Retailer 9
-
£343 GBP
$460 USD
View
B+
Retailer 10
-
£466 GBP
$624 USD
View
B+
Retailer 11
-
£492 GBP
$659 USD
View
B
Retailer 12
-
£616 GBP
$825 USD
View
B+
Retailer 13
-
£681 GBP
View
Most Expensive
B
Brilliant Earth
13299940A · Oct 31
£963 GBP
$1,290 USD
View
13 more retailers have this diamond
Prices start from £117 GBPSave up to £846 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
1.58ct Emerald
£117 GBP