Thank you much :thumbup:
It's a very very slow process lol I used a mix of 800-1000 grit sand paper. Very lightly pass the crystal back and forth. If you go too hard, sapphire pieces will begin to chip off and leave cracked dents. Test fit and keep sanding. Take your time. If it's still too tight, dont use a presser because the glass will shatter, learned that the hard way. Once it's a good fit, use a microscopic pinch of apoxy around the rim of the case back and set it in place. Wipe of any access apoxy with a moist rag and polish with a cape code for that clear water finish.
Good luck :thumbup: