✨️Antique locket 925⁰

Very beautiful heart-shaped - openable locket
It was custom-made, because when I bought it in London, it didn't have any hallmark
To verify - I did testing at the assay office and obtained a hallmark of 925⁰
The heart is quite large - adorned with a synthetic heart-shaped blue sapphire and cubic zirconia
The heart is puffed and heavy - very difficult to photograph!
Length ~ 4cm
Width ~ 3cm
And thickness 1.4 cm
Very antique loop - more pictures and video - privately