A.JAFFE Engagement Rings. The A.JAFFE story begins in 1892 in early New York and continues today as one of the most precious and special engagement rings in the world. One of the only 19th century jewelers still active in New York City, A.JAFFE has thrived from an unwavering commitment to uphold old world standards of craftsmanship and to adhere to the arduous demands of meticulous diamond selection. Each A.JAFFE ring is perfectly crafted, seamlessly combining modern glamour with timeless elegance. Every A.JAFFE diamond is a rare gem. Our diamonds were exclusively sourced from the finest diamond mines in the world. Each A.JAFFE diamond can be matched perfectly to an elegant setting that enhances the beauty of the diamond and compliments your diamond with companion stones that can be set along the side.