These are big and beautiful London Blue Topaz 10mm round cabochons. This is lovely clean material and the colour is good. London Blue is an enduringly popular stone, and if only the treaters believed it were here to stay, the price would start to come down. As it is, this is a pretty good price for this size. These look great in white metal, but super-special in yellow metal. The stones are treated.
Approx carats per stone: 5.04
Country of Origin: Brazil/USA
Treatment: Irradiated (for more information please see my 'Gemstone Information' page)
Clarity: Eye clean