My Doris chunky facet stud ear ringsChunky crystal quartz stud earrings 11mm x 11mm Our range of jewellery from Turkey is handcrafted on the outskirts of Istanbul by a small family firm who have worked in the same workshop for over 3 generations. All the jewellery is made from nickel free brass with a 22ct gold plate and finished with various semi precious stones such as quartz, freshwater pearls, amethyst and howlite as well as vibrant coloured facet crystal.