This is a lovely vintage traditional Scottish Silver Brooch.
It is all hallmarked on the back and has a very tiny lozenge with the maker's initials - it is hard to read but think it contains the letters: JH (or JC) - for the celebrated Scottish silversmith: John Hart. (or James Coull). I think that the letter on the hallmark is the letter D which would date this piece to 1978.
There is a raised dark brown striped "tiger's eye" or Blue John stone in the center. The stone is held in place by a raised ring of silver. No damage to the stone or the silver.
The clasp is a locking ring. Dimensions: 3.5 cm at the widest point. As you can see from my photographs - a finely made piece.
Shall be sent in a little simple black card gift box.
UK Postage is with Royal Mail Recorded. It will be £4.95 and applied to your order at check out. If I can post to you cheaper - I will be happy to refund any postage overages.