"The Verneuil process, also called flame fusion, was the first commercially successful method of manufacturing synthetic gemstones, developed in 1902 by the French chemist Auguste Verneuil."
Your photo shows a darkish Royal blue synthetic sapphire which can be found easily either as an Antique in jewellery on places like Rubylane or you should be able to also easily find a modern synthetic sapphire the same colour.
Thanks. I can't buy it right now anyway-- too much in the works at the moment. I also slight synthetics in my mind. I will start looking for sapphire solitares-- I think that is what I am drawn to.