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.
In the fourth row put beryl, onyx, and gray quartz. Mount them in gold settings.
The fourth row contained a beryl, a carnelian, and jasper. These were mounted in gold settings.
You were in Eden, God's garden. You were covered with every kind of precious stone: red quartz, topaz, crystal, beryl, jade, onyx, gray quartz, sapphire, turquoise, and emerald. Your settings and your sockets were made of gold when you were created.
the fifth, sardonyx; the sixth, sardius; the seventh, chrysolyte; the eighth, beryl; the ninth, topaz; the tenth, chrysoprase; the eleventh, hyacinth; the twelfth, amethyst.