Just purchased martini-set studs in ruby and sapphire. Ruby are 0.41 TCW from Thailand. Sapphire are 0.85 TCW from Madagascar. Very pleased! Pictures absolutely don’t do the colors justice. Purchased from a local gemologist/jeweler. They also had larger carat Burmese rubies and lighter color Ceylon sapphires that I tried on. Picking the ones I wanted was a lot of fun, and I enjoyed learning their origins.