I’ve probably used that title before, but it has real poignancy now, as this is the last lot of AAA rainbow moonstone I am going to have for a while, and I may as well look for more at the end of the rainbow, along with the crock of gold. It’s 3mm rose cut round, and when it’s gone, it’s gone, so if this is your thing, grab it now before it runs out. Lovely, clean material with bright blue, green and gold adularescence (flash). I’ve got it in both Hong Kong and US stores: the Hong Kong store has stones with the kite shaped-faceting and the US store has the triangle facets. Why is the AAA so hard to find now (and it is, and if you can find it, it is an arm and a leg jobby)? Well, as usual, it’s a supply and demand thing – people have become more aware of the fine grade moonstone in recent years, and more prepared to pay extra for it. But it’s scarce because of the way moonstone is formed, in many layers. This layered makeup is what gives the stone its classic blue or green flash, as light refracts off the layers and produces that unworldly sheen that appears sometimes suspended within the stone. A layered makeup is obviously going to most commonly produce a very fractured stone; which then interferes with the refraction of light and results in a poor flash. There is absolutely no shortage of this kind of material at all, but the clean material is obviously less common in nature. You can find it here in my Hong Kong store, and here in my US store, $3 per stone each in either store.