For the Obby id say 80-140E depending on the req but thats the range for a Req 10 to 9 and the Crystalline is about 200E + or - if max gold inscribable
Sold a r10 Obi Edge (caster modded) 75e...hard sell and I was tired of it taking up an inv slot. lol. Crystallines (insc) are worth a lot more usually.