Your engagement ring specialists. Jacob Mercari was founded in 2014 as a way to connect with people looking for a more personalized approach to buying an engagement ring. We really try and take the time to learn the needs of our customers and then execute their every wish. With two generations of experience, we use the skills we have learned to create superior diamond and gemstone jewelry. We source all of our materials from ethical and conflict free sources to provide our clientele with complete peace of mind.