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Emerald|Lab Grown|IGI

1.18ct F SI1 Emerald Lab Grown Diamond

GD • F/SI1 • IGI LG598307046

Shape and cutting style on the report: Emerald cut

Certificate IGI LG598307046

Diamond specifications and retailer prices

From £152 GBP
As of November 6, 2026
Save £1,022 GBP (87%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,174 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.18ct lab-grown emerald diamond

This 1.18ct lab-grown emerald sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG598307046 or 598307046. Listed at 9 retailers as of November 6, 2026, with prices from £152 to £1,174, a £1,022 spread on the same certified stone. Do Amore Diamonds lists it at £1,174. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.18
Carat
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598307046
Dimensions6.93 × 5.01 × 3.43 mm
L/W Ratio1.38
Culet sizeLong
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
6.93 mm5.01 mm1.18 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598307046
Side View
Table 64.0%Crown 36.1°Girdle: MediumPavilion 38.6°Culet: LNGDepth 68.5%

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: Nov 6
Current: £1,174 GBP|Low: £149 GBP|High: £1,174 GBP|Avg: £511 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6£152 GBP
Retailer 8£272 GBP
Retailer 2£298 GBP
Retailer 4£331 GBP
Retailer 9£336 GBP
Retailer 7£513 GBP
Retailer 5£536 GBP
Retailer 10£726 GBP
Retailer 3£778 GBP
Do Amore Diamonds£1,174 GBP

43 data points across 10 retailers

9 retailers£152 GBP to £1,174 GBP

A
Cheapest Retailer
-
£152 GBP
B+
Retailer 2
-
£272 GBP
View
B+
Retailer 3
-
£298 GBP
View
B+
Retailer 4
-
£331 GBP
View
B+
Retailer 5
-
£336 GBP
View
B
Retailer 6
-
£513 GBP
View
B
Retailer 7
-
£536 GBP
View
B
Retailer 8
-
£778 GBP
View
Most Expensive
C
Do Amore Diamonds
27-B5FE38477 · Nov 6
£1,174 GBP
$1,580 USD
View
8 more retailers have this diamond
Prices start from £152 GBPSave up to £1,022 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
1.18ct Emerald
£152 GBP