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Emerald|Lab Grown|IGI

1.00ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG384946594

Shape and cutting style on the report: Emerald cut

Certificate IGI LG384946594

Diamond specifications and retailer prices

From £105 GBP
As of November 6, 2026
Save £549 GBP (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £654 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1ct lab-grown emerald diamond

This 1ct lab-grown emerald sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG384946594 or 384946594. Listed at 11 retailers as of November 4, 2026, with prices from £105 to £654, a £549 spread on the same certified stone. Brilliant Earth lists it at £654. 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

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG384946594
Dimensions6.49 × 4.91 × 3.27 mm
L/W Ratio1.32
Culet sizeLarge
Cert comments
This laboratory grown diamond is classified as Type II.
Top View
6.49 mm4.91 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG384946594
Side View
Table 67.0%CrownGirdle: MediumPavilionCulet: LargeDepth 66.6%

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 6
Current: £654 GBP|Low: £101 GBP|High: £676 GBP|Avg: £248 GBP|-3.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 5£105 GBP
Retailer 6£130 GBP
Retailer 7£130 GBP
Retailer 8£177 GBP
Retailer 2£221 GBP
Retailer 4£247 GBP
Retailer 3£248 GBP
Brilliant Earth£654 GBP

43 data points across 8 retailers

11 retailers£105 GBP to £654 GBP

A
Cheapest Retailer
-
£105 GBP
A
Retailer 2
-
£122 GBP
View
Retailer 3
-
£130 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
£130 GBP
View
B+
Retailer 5
-
£177 GBP
View
A
Retailer 6
-
£221 GBP
View
A
Retailer 7
-
£247 GBP
View
Retailer 8
-
£248 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£383 GBP
View
B+
Retailer 10
-
£418 GBP
View
Most Expensive
B
Brilliant Earth
18032196A · Nov 4
£654 GBP
$880 USD
View
10 more retailers have this diamond
Prices start from £105 GBPSave up to £549 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
1.00ct Emerald
£105 GBP