Exodus 28:19
and the third row a jacinth, an agate, and an amethyst;
Exodus 39:12
and the third row, a jacinth, an agate, and an amethyst;
Isaiah 54:12
I will make your pinnacles of rubies, and your gates of sparkling jewels, and all your walls of precious stones.
Treasury of Scripture Knowledge
Summary
                            And the third row a ligure, an agate, and an amethyst.                        
                    A ligure
An agate
General references
Bible References
A ligure
                                        Exodus 39:12                                        
                                                            
                        and the third row, a jacinth, an agate, and an amethyst;
                                    An agate
                                        Isaiah 54:12                                        
                                                            
                        I will make your pinnacles of rubies, and your gates of sparkling jewels, and all your walls of precious stones.
                                    General references
                                        Exodus 35:9                                        
                                                            
                        onyx stones, and stones to be set for the ephod and for the breastplate.