What if 'stone' is allegorical using the same meaning given in the Bible?
Acts 4:11 This is the stone which the builders rejected, which has become the chief cornerstone.
Psalm 118:22 The stone that the builders rejected has become the cornerstone.
Ephesians 2:20 (with context)
And he came and preached peace to you who were far off and peace to those who were near. 18 For through him we both have access in one Spirit to the Father. 19 So then you are no longer strangers and aliens, but you are fellow citizens with the saints and members of the household of God, 20 built on the foundation of the apostles and prophets, Christ Jesus himself being the cornerstone, 21 in whom the whole structure, being joined together, grows into a holy temple in the Lord.
The temple is not a physical structure but the people who worship God through the Son, Jesus.
The cornerstone is not a physical structure but the spiritual/philosophical basis upon which the temple of believers rests.
To my mind, a "Jerusalem Stone" when viewed through a spiritual lens does also connote Jesus Christ, in addition to specifying that physical building material.
(Side note: The elitists/satanists know the Bible too, and try to usurp its Godly symbols and precepts by changing meanings.)