Hi! I'm looking for a Montana sapphire ring in yellow gold (but not gold-plated). I am interested in all gem sizes, but tend to prefer those around 4.5 mm. I am willing to go with either rough or faceted. I am willing to spend up to $500 depending on the ring. I am around a size 6.25, depending on the band thickness, so I am interested in any rings that can be resized to that. I am also interested in loose gemstones.