Beautiful! 10K Yellow-gold Authentic Black Hills Gold Women's Freshwater Cultured Pearl Ring Beautiful! Authentic Black Hills Gold Pearl ring.10K Yellow Gold with 12k Pink & Green Gold grape leaves. Center White Pearl 5.5mm. Ladies of all ages just love this ring. To be considered Black Hills Gold an item must be designed in a traditional tri-gold, grape leaf motif and be manufactured in the Black Hills of South Dakota The size is 5 mm from top to bottom or just about 1/4 inch. Lifetime warranty from the manufacture.