What a beautiful ring!
 
Very feminine in style and colour, the enamel in shades of pinks and baby blues, accented with gold, the ring itself 18 carat gold and dates around 1830-40
 
The ring comprises five panels, the central panel or face of the ring being a locket, painted with a recumbant hound , probably a spaniel with his cream and tan markings, lying infront of a sky blue backdrop, framed with gold and hearts.
A dog, or hound, symbolises fidelity so this ring was probably a gift from a husband or lover, the locket probably held a lock of hair. 
 
The ring is a size 8 and cannot be sized.
 
weight - 3.8g
 
condition - immaculate
 
the last two images are from Koch  'Ringe' Anna Beatriz Chadour page 451 vol II