21:3) that's the fulfillment of the last feast, THE Feast of Tabernacles where by all nations had been welcome in Jerusalem, also known as the Feast of Nations over the fifteenth of Tishri. Jacinth or hyacinth is usually a treasured stone of exactly the same colour as being the hyacinth https://richardfrench.net/what-is-the-new-jerusalem-heaven-on-earth-in-revelation-21-22/