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Emerald|Lab Grown|IGI

1.04ct F SI1 Emerald Lab Grown Diamond

EX • F/SI1 • IGI LG851694431

Shape and cutting style on the report: Emerald cut

Certificate IGI LG851694431

Diamond specifications and retailer prices

From £201 GBP
As of November 6, 2026
Save £215 GBP (52%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £416 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.04ct lab-grown emerald diamond

This 1.04ct lab-grown emerald sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG851694431 or 851694431. Listed at 2 retailers as of November 4, 2026, with prices from £201 to £416, a £215 spread on the same certified stone. Brilliant Earth lists it at £416. 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

1.04
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851694431
Dimensions6.80 × 4.68 × 3.25 mm
L/W Ratio1.45
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.80 mm4.68 mm1.04 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851694431
Side View
Table 65.0%Crown 38.6°Girdle: Slightly ThickPavilion 40°Culet: LargeDepth 69.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £416 GBP|Low: £201 GBP|High: £416 GBP|Avg: £309 GBP
Brilliant Earth
Retailer 2
November 6, 2026
Retailer 2£201 GBP
Brilliant Earth£416 GBP

3 data points across 2 retailers

2 retailers£201 GBP to £416 GBP

A
Cheapest Retailer
-
£201 GBP
Most Expensive
B
Brilliant Earth
22492478A · Nov 4
£416 GBP
$560 USD
View
1 more retailer has this diamond
Prices start from £201 GBPSave up to £215 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
1.04ct Emerald
£201 GBP