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Emerald|Lab Grown|IGI

1.28ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG843661107

Shape and cutting style on the report: Emerald cut

Certificate IGI LG843661107

Diamond specifications and retailer prices

From £302 GBP
As of November 4, 2026
Save £518 GBP (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £820 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.28ct lab-grown emerald diamond

This 1.28ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843661107 or 843661107. Listed at 10 retailers as of November 2, 2026, with prices from £302 to £820, a £518 spread on the same certified stone. MOH London lists it at £820. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843661107
Dimensions7.17 × 5.12 × 3.51 mm
L/W Ratio1.40
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.17 mm5.12 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843661107
Side View
Table 61.0%Crown 35.4°Girdle: MediumPavilion 41.3°Culet: LargeDepth 68.6%

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 4
Current: £820 GBP|Low: £302 GBP|High: £820 GBP|Avg: £479 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6£302 GBP
Retailer 8£303 GBP
Retailer 3£309 GBP
Retailer 2£354 GBP
Retailer 7£427 GBP
Retailer 9£467 GBP
Retailer 5£555 GBP
Retailer 4£593 GBP
Retailer 10£622 GBP
MOH London£820 GBP

6 data points across 10 retailers

10 retailers£302 GBP to £820 GBP

A
Cheapest Retailer
-
£302 GBP
A
Retailer 2
-
£303 GBP
View
A
Retailer 3
-
£309 GBP
View
A
Retailer 4
-
£354 GBP
View
B+
Retailer 5
-
£427 GBP
View
B+
Retailer 6
-
£467 GBP
View
B+
Retailer 7
-
£555 GBP
View
B+
Retailer 8
-
£593 GBP
View
B
Retailer 9
-
£622 GBP
View
Most Expensive
B
MOH London
LG843661107 · Nov 2
£820 GBP
View
9 more retailers have this diamond
Prices start from £302 GBPSave up to £518 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
1.28ct Emerald
£302 GBP