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Emerald|Lab Grown|IGI

0.91ct E SI2 Emerald Lab Grown Diamond

EX • E/SI2 • IGI LG451078873

Shape and cutting style on the report: Emerald cut

Certificate IGI LG451078873

Diamond specifications and retailer prices

From £355 GBP
As of October 29, 2026
Save £302 GBP (46%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £656 GBP at B2C Jewels · As of October 29, 2026
View at B2C Jewels

About this 0.91ct lab-grown emerald diamond

This 0.91ct lab-grown emerald sits in the just-under-one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451078873 or 451078873. Listed at 2 retailers as of October 29, 2026, with prices from £355 to £656, a £302 spread on the same certified stone. B2C Jewels lists it at £656. 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

0.91
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle22.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451078873
Dimensions6.22 × 4.60 × 3.15 mm
L/W Ratio1.35
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.22 mm4.60 mm0.91 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451078873
Side View
Table 65.0%Crown 22.5°Girdle: THK-VTKPavilion 40.1°Culet: LNGDepth 68.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: £656 GBP|Low: £355 GBP|High: £1,072 GBP|Avg: £515 GBP|-38.8%
B2C Jewels
Retailer 2
September 23, 2026
Retailer 2£355 GBP
B2C Jewels£656 GBP

7 data points across 2 retailers

2 retailers£355 GBP to £656 GBP

B+
Cheapest Retailer
-
£355 GBP
Most Expensive
B
B2C Jewels
19123777 · Oct 29
£656 GBP
$874 USD
View
1 more retailer has this diamond
Prices start from £355 GBPSave up to £302 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+
0.91ct Emerald
£355 GBP