Tiffany & Co. has just updated its iPhone app for diamond engagement rings, and included in the latest version a number of features that it says enhance the mobile experience of looking for diamonds

Called the Tiffany & Co. Engagement Ring Finder, the app, which was first launched last year and has been downloaded over 800,000 times, now offers a private Facebook page where users can share saved rings and comments with selected friends, allowing for a more intimate social shopping experience.

To maximize the viewing of rings,  a selection of ring styles may be viewed on a hand model. The hand’s movement showcases the rings from different angles, vividly highlighting the stones’ cuts and designs. In addition, customers can send their ring selections directly to Tiffany’s diamond consultants, and they can save consultants’ recommendations.

Other tools on the app include a ring sizer, which lets users determine their size by placing an actual ring directly on the screen and aligning it with the correct circle in the guide. Users may also browse the collection according to shape, setting, metal or design; zoom in on a ring’s details; pair the rings with wedding bands; and save or share their favorites via email, Facebook and Twitter.