ὑάκινθος hyákinthos

Meaning

the "hyacinth" or "jacinth", i.e. some gem of a deep blue color, probably the zirkon

In the King James Version: jacinth

Derivation: of uncertain derivation;

Where it is used

• Revelation 21:20 the fifth sardonyx, the sixth carnelian, the seventh chrysolite, the eighth beryl, the ninth topaz, the tenth chrysoprase, the eleventh jacinth, and the twelfth amethyst.