Emerald|Lab Grown|IGI

1.21ct E VS1 Emerald Lab Grown Diamond

EX • E/VS1 • IGI LG840652442

Shape and cutting style on the report: Emerald cut

Certificate IGI LG840652442

Diamond specifications and retailer prices

From £152 GBP
$203 USD
As of October 28, 2026
Save £478 GBP (76%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £631 GBP at Frank Darling · As of October 25, 2026
View at Frank Darling

About this 1.21ct lab-grown emerald diamond

This 1.21ct lab-grown emerald sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840652442 or 840652442. Listed at 4 retailers as of October 25, 2026, with prices from £152 to £631, a £478 spread on the same certified stone. Frank Darling lists it at £631. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840652442
Dimensions7.01 × 5.12 × 3.50 mm
L/W Ratio1.37
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.01 mm5.12 mm1.21 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840652442
Side View
Table 67.0%Crown 39.3°Girdle: MediumPavilion 39.9°Culet: LargeDepth 68.4%

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: Oct 28
Current: £631 GBP|Low: £151 GBP|High: £631 GBP|Avg: £373 GBP
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 28, 2026
Retailer 3£152 GBP
Retailer 4£234 GBP
Retailer 5£318 GBP
Retailer 2£499 GBP
Frank Darling£631 GBP

6 data points across 5 retailers

4 retailers£152 GBP to £631 GBP

A
Cheapest Retailer
-
£152 GBP
$203 USD
Final sale: no returns
B+
Retailer 2
-
£234 GBP
$312 USD
View
B+
Retailer 3
-
£499 GBP
$665 USD
View
Most Expensive
B
Frank Darling
100761298783KD · Oct 25
£631 GBP
$840 USD
View
3 more retailers have this diamond
Prices start from £152 GBPSave up to £478 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
1.21ct Emerald
£152 GBP