I'd like to ask your opinion about these dark blue sapphires from Cambodia and what you would do with it. Is there any heat treatment that might lighten them up a bit? The stones show a strong pleochroismus effect. Thanks!
Users browsing this forum: No registered users and 31 guests
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum