Many craft shop selling "Tenun Ikat" from Lombok. Ask your hotel desk to know more about them or see many brochures that available there.
What to buy: Tenun Ikat is one of Lombok brand. You can get textile, clothes, even see how they made it in their traditional home.
What to pay: It depends on quality. So, the best they made, the higher they price.
Buy pottery in Penujak small and big, all kind of shapes for all purposes
Pearls in Sekarbela Tukang Emas Jl. Sultan Kaharudin