Available are:

Rubies from Myanmar (Burma), Sri Lanka, Madagascar, Thailand, Viet Nam, Mozambique and Tanzania
Sapphires from Sri Lanka, Thailand, Burma, Madagascar, Tanzania, Nigeria and others countries Emeralds from Colombia, Pakistan, Zambia and other African countries
Tourmaline from Africa, Brazil and Sri Lanka as well as Garnet and other color gemstones in a large range of colors in different sizes, shapes and cuts.

You may also order gemstones that are currently out of stock, which I'll choose for you during my shopping trips to the gemstone capitals. The selections are handpicked personally.