gemstone is siyat

siyat = gemstone (SIH-yaht) (rare term in Google; there's a book on amazon.co.uk titled "Siyat min al-harir al-majdul" by Majdi Salamah; Siyat Hillow Abdi is a man from Kenya studying for a PhD in Australia specializing in Disability and Refugees; "ma'siyat" means "sin or sinfulness" in Arabic; "siyat" means "to shine" in Russian; a character name of an fantasy and anime fan; Siyat village Sojat Road in the Pali District of Rajasthan, India; an Indian first name; means "to forge" or "steel oneself" to Formosan indigenous on Taiwan; Mohamed Siyat Rage was a Somalian UNICEF staff member who have lost his life to gunshot wounds; Siyat (730-785) was Early Arabian Classical Musician; Buddha Siyat is a sleeping image of Buddha in Thailand)