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Emerald|Lab Grown|IGI

4.51ct G VS2 Emerald Lab Grown Diamond

ID • G/VS2 • IGI LG843601723

Shape and cutting style on the report: Emerald cut

Certificate IGI LG843601723

Diamond specifications and retailer prices

From £684 GBP
$911 USD
As of October 28, 2026
Save £928 GBP (58%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,612 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 4.51ct lab-grown emerald diamond

This 4.51ct lab-grown emerald sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843601723 or 843601723. Listed at 5 retailers as of October 26, 2026, with prices from £684 to £1,612, a £928 spread on the same certified stone. MOH London lists it at £1,612. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.51
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle43°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843601723
Dimensions11.30 × 7.75 × 5.19 mm
L/W Ratio1.46
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.30 mm7.75 mm4.51 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843601723
Side View
Table 69.0%Crown 33.2°Girdle: Slightly ThickPavilion 43°Culet: LargeDepth 67.0%

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: £1,612 GBP|Low: £684 GBP|High: £1,928 GBP|Avg: £1,170 GBP|-16.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 3£684 GBP
Retailer 2£724 GBP
Retailer 4£1,077 GBP
Retailer 5£1,490 GBP
MOH London£1,612 GBP

16 data points across 5 retailers

5 retailers£684 GBP to £1,612 GBP

B+
Cheapest Retailer
-
£684 GBP
$911 USD
A
Retailer 2
-
£724 GBP
View
A
Retailer 3
-
£1,077 GBP
$1,434 USD
View
Retailer 4
-
£1,490 GBP
$1,984 USD
View
Price last confirmed 11 days ago
Most Expensive
B+
MOH London
LG843601723 · Oct 26
£1,612 GBP
View
4 more retailers have this diamond
Prices start from £684 GBPSave up to £928 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
4.51ct Emerald
£684 GBP