Good question. Good answer.
From others we have also hear red diamond, ruby and alexandrite.
The last time I visited Whistler (where Olympics 2010 were held)
there was a stone quarry right in the middle of one of the most
expensive villages on the planet.
What do you do with such a quarry when the stone is no longer being
drawn for construction purposes? Why not hire the Mikey Angelo
Construction Company to do a little stone carving with the rock face?
How much is Mount Rushmore worth as art? What are the most valuable
sculpted stones in the world? How rare is Da Vinci’s statue of David?
What do we call such a work of art? Whistler’s Mother? I would start
Whistler’s Mother by cutting the quarry deep enough to support a
good sized natural aquarium at the bottom. The waterfall over the
stone facets above would also create an excellent effect especially
when the complexities of lighting are taken into account for the
final display. The stone-light interaction amazes me. Water is God’s
natural cosmetic. Water-light can turn the most ordinary stone into a
gem. Just as a carved ruby can have its value enhanced by the
setting, so too Whistler’s Mother would be enhanced by floral
displays in the rocks and by the fauna in the aquarium.
If the Whistler’s Mother stonework should be the rarest gem in the
world, it could even raise the property values around it. It might
support a store with the name of “Rarest Gem” which sells the rarest
stonework on the planet. Nemo dat non quod habet does not apply when
it comes to selling by Internet. “Rarest Gem” could even put the Da
Vinci stone works up for sale in a video display room.
BTW, how much do those rare red diamonds, rubies and alexandrites
fetch on the market, before and after stone masons have had a go at
them? How much value is added by sculpting them? Could future
sculptings of these stones add even more value by departing from the
conventional facetings and curved bead and cabochon stone faces?
Finally let us put this in a cosmological perspective. We live in a
universe of > billions of stars x billions of galaxies. What might
the rarest stone in Andromeda be like? When those little green guys
in the movie, Mars Attacks said, in perfect binary language, Ack
Ackack, my cosmic translator tells me they were trying to trade this
planet for a string of Polonium beads (there is a glut of Po on
Mars). Martian culture takes rejection very badly. When they make an
offer Earthlings can’t refuse we should pay attention.
What will they do in the sequel, Mars Attacks 2?