Hi - I was at a gemstone roundtable tonight with Lisa Elser, and she has a 4.3 mm stone that she calls a pink sapphire, but I found it to be very close in colour to my little Gene, at least going by my memory. It was quite reasonably priced, too. Now, I can't remember whether you were thinking side stones or earrings, but might be worth a look into, to see if it'll match the stone you have.