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Emerald|Lab Grown|IGI

1.43ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG579359917

Shape and cutting style on the report: Emerald cut

Certificate IGI LG579359917

Diamond specifications and retailer prices

From £131 GBP
$176 USD
As of October 27, 2026
Save £1,130 GBP (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,261 GBP at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

About this 1.43ct lab-grown emerald diamond

This 1.43ct 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 LG579359917 or 579359917. Listed at 9 retailers as of October 27, 2026, with prices from £131 to £1,261, a £1,130 spread on the same certified stone. Do Amore Diamonds lists it at £1,261. 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

1.43
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579359917
Dimensions7.69 × 5.24 × 3.57 mm
L/W Ratio1.47
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
7.69 mm5.24 mm1.43 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579359917
Side View
Table 59.0%Crown 35.9°Girdle: MediumPavilion 39.5°Culet: LargeDepth 68.1%

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 27
Current: £1,261 GBP|Low: £102 GBP|High: £1,261 GBP|Avg: £509 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 18, 2026
Retailer 4£131 GBP
Retailer 9£147 GBP
Retailer 10£152 GBP
Retailer 6£290 GBP
Retailer 3£553 GBP
Retailer 8£578 GBP
Retailer 7£580 GBP
Retailer 5£649 GBP
Retailer 2£845 GBP
Do Amore Diamonds£1,261 GBP

16 data points across 10 retailers

9 retailers£131 GBP to £1,261 GBP

A
Cheapest Retailer
-
£131 GBP
$176 USD
A
Retailer 2
-
£152 GBP
$204 USD
View
B+
Retailer 3
-
£290 GBP
$388 USD
View
B+
Retailer 4
-
£553 GBP
$741 USD
View
B
Retailer 5
-
£578 GBP
$774 USD
View
B
Retailer 6
-
£580 GBP
$777 USD
View
B
Retailer 7
-
£649 GBP
$870 USD
View
Retailer 8
-
£845 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Do Amore Diamonds
27-C95854795 · Oct 27
£1,261 GBP
$1,690 USD
View
8 more retailers have this diamond
Prices start from £131 GBPSave up to £1,130 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
1.43ct Emerald
£131 GBP