I think even ashdean is not disputing the fact that the Queen does not seem to have a pair of Topaz pendent earrings. So the claim of "the present Queen has pendent earrings of every precious stone" is not supported by fact. Despite she might have opal earrings. That is the point I am trying to make : avoid making sweeping statements, because we all do not have access to the Queen's jewel box. To accept something just because somebody said it does not make the absolutely truth.
Except that topazes aren't really precious stones, are they? Going by the general consensus,
precious stones would be diamonds, rubies, sapphires, emeralds. I believe the Queen does have pendant earrings in those stones. If ashdean was going by that standard he would be correct. Topazes and the like are considered semi-precious, are they not? If stones such as these are considered precious, I will have to go back and re-evaluate my own collection!

There was some debate on another forum as to whether she wore a pair of pink topaz earrings sometime back. I didn't follow it closely enough to know what the consensus was on that.
Please let's refrain from personal attacks. Debate, even heated debate, is fine but let us avoid the name-calling, please.