Probably the ancient topaz of a golden colour. Re 21:20. The Greek word ?????????? occurs in the LXX in Ex 28:20; 36:20 (Ex 39:13); Eze 28:13.
and the fourth row a beryl, and an onyx, and a jasper: they shall be inclosed in gold in their settings.
and the fourth row, a beryl, an onyx, and a jaspar: they were inclosed in inclosings of gold in their settings.
Thou wast in Eden, the garden of God; every precious stone was thy covering, the sardius, the topaz, and the diamond, the beryl, the onyx, and the jasper, the sapphire, the emerald, and the carbuncle, and gold: the workmanship of thy tabrets and of thy pipes was in thee; in the day that thou wast created they were prepared.
the fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, topaz; the tenth, chrysoprase; the eleventh, jacinth; the twelfth, amethyst.
American Standard Version Public Domain