Rare but you can get it less than 22k if you deal direct in
london.
Has to be flawless (IF to FL) , colourless (D to F or if you want
rare exotics it will be Z) and master cut aka excellent. And you
better know how to check . Inflection angles from the cuts must be
damn balanced because it is related to the brilliance the diamond
gives out.
My solid diamond 0.50 carat is a V VS2, Grade E, good cut ( bloody
jeweller/diamond cutter did not do an excellent job). It goes for
about AUD$1.8k alone for the stone because it is small and because
it is not a master cut . With workmanship and the gold , it costs
even more.
However if you are looking for a really good jeweller/diamond
cutters , I know that Tiffany & Co uses Rand diamonds. Cartel
supplier of Rand is always DeBeers. So you can actually request any
reputable jeweller to purchase a stone from Rand. Would set you
back by a few thousands but their cuts are excellent.
Most unfortunately I cannot afford Rand cut diamonds ....
