1848 4 i. 211 The polishing-mills also are at Idal, and this place must be considered as the real centre of the agate trade.
1922 L. Wiener II. iii. ii. 235 The modern agate trade of Cambay was started by Abyssinians.
2008 C. E. Boyce-Davies I. 153/1 Bava Gor seems to have initiated the agate trade between East Africa and India.