Revelation 21:19-20
The foundation of the city's wall was decorated with all kinds of precious stones [Note: Not all of the following stones listed can be accurately identified today]. The first foundation stone was jasper [i.e., a bluish-colored stone]; the second was sapphire; the third was chalcedony [i.e., a translucent quartz of pale blue or gray]; the fourth was emerald;
Revelation 17:4
And the woman was dressed in purple and red [clothing], and was adorned with gold [jewelry] and precious stones and pearls. In her hand she held a golden cup full of disgusting things and of the pollutions of her sexual immorality.
Revelation 2:7
"The person who has an ear should listen to what the Holy Spirit is saying to the churches. To the person who has victory [in the Christian life] I will give [the opportunity] to eat from the tree of life, which is in the Paradise of God." [Note: "Paradise" is equivalent to heaven. See II Cor. 12:4].