I have added some emojis via cut paste into text field but they are not visible or some strange looking in Gmail.

How to get this right?

The following references may be of use to those who are qualified to answer the question.
(a) https://www.coffeecup.com/forums/respon … -in-gmail/
(b) The 'Fonts, Text, Align & Display' section in https://www.coffeecup.com/help/articles … l-clients/

Frank

Smileys are wee images. They will have to be added to a page as images, probably in square format and very tiny. You cannot just paste them.