Kind of surprised there are no responses or ideas on this from anybody, so I'll just suggest this interesting sword is of course mounted in Ottoman style hilt. The mounts overall suggest swords mounted in India (of the style Elgood notes from Hyderabad) in the 18th and 19th centuries for Arabian market), with the jewels however being atypical of these. It is important to note however that the drag on the chape of the scabbard suggests European influence that indicate this might have been produced in the 19th century for a European officer or some sort of presentation item.
The blade is a very good and quite old European cavalry blade which may be of 18th century, possibly even late 17th.
The cavalry sabre on the right does appear to be East European and of probably 18th century.
Hoping these comments might generate further ideas
