Effy's Black Friday 2013 ad offers 5 pages of 75% off rings, pendants, bracelets, and earrings. You can get a white gold aquamarine and cognac diamond ring for $625, marked down from $1,250. If you're looking for a gift for a lover, check out Effy's selection of heart-shaped pendants like the Gemma ruby and diamond heart for $907.50. Effy even has an entire page of jewelry deals for men, including a silver and black sapphire ring for $210 (retail $840).