يقتيَاقُوتٌ, [coll. gen. n., The sapphire, of whatever variety: the ruby, oriental ruby, or red sapphire, also called ياقوتٌ أَحْمَرُ; of which there are several varieties, whereof one is the carbuncle; also called ياقوتٌ جَمْرِىٌّ: the sapphire, commonly so called, or blue sapphire, also called ياقوتٌ أَزْرَقُ: and the topaz, oriental topaz, or yellow sapphire, also called ياقوتٌ أَصْفَرُ: the jacinth, or hyacinth, accord. to Golius, who observes, as on the authority of the Teyfáshee, that by this name are called various gems of the East; four species thereof being enumerated; the red, the yellow, or gold-coloured, the blue, or azure, and the white: that the sapphire and the chrysolite are also thus called: but that, by the word used absolutely, the red jacinth, or hyacinth, commonly called the ruby, is meant: which last remark is agreeable with modern usage:] a well known gem; (K;) of which there are many varieties, (TA,) the most excellent whereof is that called الياقوتُ الأَحْمَرُ الرُّمَّانِىُّ, (K,) also called البَهْرَمَانِىُّ; [the finest kind of ruby or carbuncle;] said to be brought from Sarandeeb [or Ceylon]: it has the property of exhilarating, and of conjoining [separated friends]; (TA;) and is profitable for disturbance of the mind (occasioned by the black bile, TA) and palpitation, and weakness of the heart and stomach, if drunk; [being app. reduced to powder for that purpose, as is done with some other gems in the East;] and for congealment of the blood, if hung [upon the person]: (K:) it is a Persian word, (S,) arabicized: (S, K:) of the measure فَاعُولٌ: n. un. with ة; and pl. يَواقِيتُ. (S.)