About Us Content77 Diamonds welcomes you to our Manchester showroom, located in the impressive Arkwright House which overlooks the luscious green Parsonage Gardens. A few steps away from Deansgate, this area is the ideal backdrop for choosing your favourite jewel. With unrivalled, direct access to over 80% of the world's finest polished diamonds, we deliver delicately crafted, high quality engagement, eternity and wedding rings as well as earrings, bracelets and necklaces.