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Emerald|Lab Grown|IGI

1.40ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG589388949

Shape and cutting style on the report: Emerald cut

Certificate IGI LG589388949

Diamond specifications and retailer prices

From £129 GBP
$173 USD
As of October 27, 2026
Save £1,110 GBP (90%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,239 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG589388949 or 589388949. Listed at 8 retailers as of October 27, 2026, with prices from £129 to £1,239, a £1,110 spread on the same certified stone. Do Amore Diamonds lists it at £1,239. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG589388949
Dimensions7.63 × 5.24 × 3.51 mm
L/W Ratio1.46
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
7.63 mm5.24 mm1.40 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG589388949
Side View
Table 62.0%Crown 36.1°Girdle: MediumPavilion 40°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 27
Current: £1,239 GBP|Low: £100 GBP|High: £1,239 GBP|Avg: £479 GBP|+3.8%
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£129 GBP
Retailer 12£145 GBP
Retailer 13£149 GBP
Retailer 10£285 GBP
Retailer 3£293 GBP
Retailer 5£383 GBP
Retailer 6£410 GBP
Retailer 8£543 GBP
Retailer 14£551 GBP
Retailer 7£556 GBP
Retailer 11£567 GBP
Retailer 4£687 GBP
Retailer 2£827 GBP
Do Amore Diamonds£1,239 GBP

16 data points across 14 retailers

8 retailers£129 GBP to £1,239 GBP

A
Cheapest Retailer
-
£129 GBP
$173 USD
A
Retailer 2
-
£149 GBP
$200 USD
View
B+
Retailer 3
-
£285 GBP
$382 USD
View
B+
Retailer 4
-
£543 GBP
$728 USD
View
Retailer 5
-
£556 GBP
$745 USD
View
Price last confirmed 10 days ago
B
Retailer 6
-
£567 GBP
$760 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
£827 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9B42D7F84 · Oct 27
£1,239 GBP
$1,660 USD
View
7 more retailers have this diamond
Prices start from £129 GBPSave up to £1,110 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
£129 GBP