I’m not typically one purchases opals…BUT when I DO! 😍🌈 They must be special. This Australian lightning Ridge Opal has the most spectacular, full spectrum color play edge to edge. 
This is a perfect example of a top quality antique ring. Usually, I do not come across opals of this quality and size. They’re usually much smaller, but somehow this beauty found it way to me. 
1920s Antique 7ct Lightning Ridge Opal & Diamond Halo Ring
Aprox 7ct Lighting Ridge Opal 
Old cut Diamonds Aprox .65 tcw 
Platinum 
Size 6.5 (sizable)
6.55g
Halo face 24.5mm X 11.3mm X 8.9mm