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Emerald|Lab Grown|IGI

3.54ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG662447412

Shape and cutting style on the report: Emerald cut

Certificate IGI LG662447412

Diamond specifications and retailer prices

From £250 GBP
$335 USD
As of October 30, 2026
Save £998 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,248 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.54ct lab-grown emerald diamond

This 3.54ct lab-grown emerald sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG662447412 or 662447412. Listed at 10 retailers as of October 29, 2026, with prices from £250 to £1,248, a £998 spread on the same certified stone. MOH London lists it at £1,248. 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

3.54
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662447412
Dimensions10.69 × 7.10 × 4.73 mm
L/W Ratio1.51
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.69 mm7.10 mm3.54 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662447412
Side View
Table 68.0%Crown 38.4°Girdle: MediumPavilion 40.8°Culet: LargeDepth 66.6%

Caratlytics Score

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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: £1,248 GBP|Low: £250 GBP|High: £4,500 GBP|Avg: £1,437 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 7£250 GBP
Retailer 14£290 GBP
Retailer 9£310 GBP
Retailer 11£344 GBP
Retailer 8£425 GBP
Retailer 13£501 GBP
Retailer 2£555 GBP
Retailer 10£562 GBP
Retailer 4£842 GBP
Retailer 12£996 GBP
MOH London£1,248 GBP
Retailer 5£3,063 GBP
Retailer 6£3,105 GBP
Retailer 3£4,500 GBP

4 data points across 14 retailers

10 retailers£250 GBP to £1,248 GBP

A
Cheapest Retailer
-
£250 GBP
$335 USD
A
Retailer 2
-
£290 GBP
$388 USD
View
A
Retailer 3
-
£310 GBP
$415 USD
View
A
Retailer 4
-
£344 GBP
HK$3,600 HKD
View
A
Retailer 5
-
£425 GBP
$570 USD
View
B+
Retailer 6
-
£501 GBP
$671 USD
View
A
Retailer 7
-
£555 GBP
View
A
Retailer 8
-
£562 GBP
$753 USD
View
B+
Retailer 9
-
£996 GBP
$1,335 USD
View
Most Expensive
B+
MOH London
LG662447412 · Oct 29
£1,248 GBP
View
9 more retailers have this diamond
Prices start from £250 GBPSave up to £998 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
3.54ct Emerald
£250 GBP