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Emerald|Lab Grown|IGI

3.45ct H VS1 Emerald Lab Grown Diamond

ID • H/VS1 • IGI LG618415359

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG618415359

Diamond specifications and retailer prices

From £527 GBP
As of October 30, 2026
Save £1,397 GBP (73%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,924 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 3.45ct lab-grown emerald diamond

This 3.45ct lab-grown emerald sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG618415359 or 618415359. Listed at 9 retailers as of October 25, 2026, with prices from £527 to £1,924, a £1,397 spread on the same certified stone. MOH London lists it at £1,924. 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

3.45
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle43°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618415359
Dimensions8.13 × 8.11 × 5.53 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.13 mm8.11 mm3.45 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618415359
Side View
Table 64.0%Crown 38.7°Girdle: MED-STKPavilion 43°Culet: NoneDepth 68.2%

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 30
Current: £1,924 GBP|Low: £525 GBP|High: £1,932 GBP|Avg: £1,123 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2£527 GBP
Retailer 5£590 GBP
Retailer 8£756 GBP
Retailer 7£928 GBP
Retailer 3£1,031 GBP
Retailer 4£1,061 GBP
Retailer 9£1,543 GBP
Retailer 6£1,746 GBP
MOH London£1,924 GBP

12 data points across 9 retailers

9 retailers£527 GBP to £1,924 GBP

A
Cheapest Retailer
-
£527 GBP
A
Retailer 2
-
£590 GBP
$790 USD
View
B+
Retailer 3
-
£756 GBP
$1,013 USD
View
A
Retailer 4
-
£928 GBP
$1,243 USD
View
A
Retailer 5
-
£1,031 GBP
A$2,126 AUD
View
A
Retailer 6
-
£1,061 GBP
ZAR 22,957 ZAR
View
B
Retailer 7
-
£1,543 GBP
$2,068 USD
View
B+
Retailer 8
-
£1,746 GBP
$2,340 USD
View
Most Expensive
B
MOH London
LG618415359 · Oct 25
£1,924 GBP
View
8 more retailers have this diamond
Prices start from £527 GBPSave up to £1,397 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
3.45ct Emerald
£527 GBP