Oval Tibetan Turquoise Earrings - Natural Designer GemstonesGorgeous Natural Tibetan Turquoise Earrings. Tibetan Turquoise comes from the Himalayan area of Tibet. It tends to have more greens, from higher levels of iron impurities. It is the same source of turquoise that the Tibetans have used and worn for centuries. IT IS KNOWN AS THE 'SKY STONE' BY TIBETAN AND NEPALESE PEOPLE. Turquoise has been revered by people in the Himalayas for thousands of years thanks to the belief that it came from the heavens