Job 28:6

A place where its stones shall be sapphires; and it shall have dust of gold.

Exodus 24:10

and they saw the God of Israel; and there was under his feet as it were a paved work of a sapphire stone like unto the heaven when it is clear.

Job 28:16

It cannot be valued with the gold of Ophir, with the precious onyx or the sapphire.

Song of Songs 5:14

His hands are as gold rings set with beryls; his belly is as bright ivory overlaid with sapphires.

Isaiah 54:11

O thou afflicted, tossed with tempest, and not comforted, behold, I will cement thy stones upon carbuncle and lay thy foundations upon sapphires.

Revelation 21:19

And the foundations of the wall of the city were garnished with all manner of precious stones. The first foundation was jasper; the second, sapphire; the third, a chalcedony; the fourth, emerald;

Treasury of Scripture Knowledge

Summary

The stones of it are the place of sapphires: and it hath dust of gold.

Bible References

Sapphires

Job 28:16
It cannot be valued with the gold of Ophir, with the precious onyx or the sapphire.
Exodus 24:10
and they saw the God of Israel; and there was under his feet as it were a paved work of a sapphire stone like unto the heaven when it is clear.
Song of Songs 5:14
His hands are as gold rings set with beryls; his belly is as bright ivory overlaid with sapphires.
Isaiah 54:11
O thou afflicted, tossed with tempest, and not comforted, behold, I will cement thy stones upon carbuncle and lay thy foundations upon sapphires.
Revelation 21:19
And the foundations of the wall of the city were garnished with all manner of precious stones. The first foundation was jasper; the second, sapphire; the third, a chalcedony; the fourth, emerald;