Flowers and birds
The cross measures 6.2 cm in height and 4.9 cm in width. The back of the cross is exactly the same as the front, suggesting it might have been designed as costume jewellery and later adopted for the black regalia.
We didn't know if it was just pretty costume jewellery, had some Masonic association, or something else. Then Alex kindly pointed us in the right direction (as he often does!)
See the Resurrection Cross