Vintage 10k Gold Bangle Bracelet with 1/3 carat European cut Diamond Solitaire

When I found this vintage 10k solid gold bracelet ( marked inside) it had three tiny diamonds, so I upgraded it with this 1/3 carat European cut diamond solitaire which used to be on a chain but looks great on this Bangle. The design of the Bangle is very similar to the antique "knife edge" style
of the early 20th century, so combining it with an antique diamond is a marriage made in heaven! The diamond is eye clean and white.