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Emerald|Lab Grown|IGI

1.23ct D VS2 Emerald Lab Grown Diamond

ID • D/VS2 • IGI LG644496420

Shape and cutting style on the report: Emerald cut

Certificate IGI LG644496420

Diamond specifications and retailer prices

From £277 GBP
$371 USD
As of October 30, 2026
Save £372 GBP (57%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £649 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.23ct lab-grown emerald diamond

This 1.23ct lab-grown emerald sits in the classic one-carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG644496420 or 644496420. Listed at 3 retailers as of October 30, 2026, with prices from £277 to £649, a £372 spread on the same certified stone. Brilliant Earth lists it at £649. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644496420
Dimensions7.46 × 5.16 × 3.32 mm
L/W Ratio1.45
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.46 mm5.16 mm1.23 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644496420
Side View
Table 65.0%Crown 31.5°Girdle: MediumPavilion 41°Culet: LNGDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £649 GBP|Low: £152 GBP|High: £761 GBP|Avg: £460 GBP|-14.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5£152 GBP
Retailer 3£277 GBP
Retailer 7£287 GBP
Retailer 6£364 GBP
Retailer 2£528 GBP
Retailer 8£541 GBP
Retailer 9£602 GBP
Brilliant Earth£649 GBP
Retailer 4£655 GBP

5 data points across 9 retailers

3 retailers£277 GBP to £649 GBP

A
Cheapest Retailer
-
£277 GBP
$371 USD
B
Retailer 2
-
£528 GBP
A$1,089 AUD
View
Most Expensive
B
Brilliant Earth
20170602Y · Oct 30
£649 GBP
$870 USD
View
2 more retailers have this diamond
Prices start from £277 GBPSave up to £372 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
1.23ct Emerald
£277 GBP