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Emerald|Lab Grown|IGI

1.40ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG566310375

Shape and cutting style on the report: Emerald cut

Certificate IGI LG566310375

Diamond specifications and retailer prices

From £131 GBP
$175 USD
As of October 27, 2026
Save £1,123 GBP (90%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,254 GBP at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

About this 1.4ct lab-grown emerald diamond

This 1.4ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG566310375 or 566310375. Listed at 8 retailers as of October 27, 2026, with prices from £131 to £1,254, a £1,123 spread on the same certified stone. Do Amore Diamonds lists it at £1,254. 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

1.40
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG566310375
Dimensions7.41 × 5.29 × 3.55 mm
L/W Ratio1.40
Culet sizeLarge
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
7.41 mm5.29 mm1.40 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG566310375
Side View
Table 65.0%Crown 36.2°Girdle: Slightly ThickPavilion 40.7°Culet: LargeDepth 67.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £1,254 GBP|Low: £103 GBP|High: £1,269 GBP|Avg: £482 GBP
Do Amore Diamonds
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 25, 2026
Retailer 9£131 GBP
Retailer 13£148 GBP
Retailer 7£152 GBP
Retailer 12£288 GBP
Retailer 3£293 GBP
Retailer 4£383 GBP
Retailer 6£421 GBP
Retailer 11£526 GBP
Retailer 8£549 GBP
Retailer 14£560 GBP
Retailer 10£574 GBP
Retailer 5£702 GBP
Retailer 2£836 GBP
Do Amore Diamonds£1,254 GBP

19 data points across 14 retailers

8 retailers£131 GBP to £1,254 GBP

A
Cheapest Retailer
-
£131 GBP
$175 USD
A
Retailer 2
-
£152 GBP
$203 USD
View
B+
Retailer 3
-
£288 GBP
$386 USD
View
Retailer 4
-
£526 GBP
$705 USD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
£549 GBP
$736 USD
View
B
Retailer 6
-
£574 GBP
$769 USD
View
B
Retailer 7
-
£836 GBP
View
Most Expensive
B
Do Amore Diamonds
27-1E48312D2 · Oct 27
£1,254 GBP
$1,680 USD
View
7 more retailers have this diamond
Prices start from £131 GBPSave up to £1,123 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
1.40ct Emerald
£131 GBP