Portia is a stunning, asymmetrical cluster ring, featuring mixed sizes of round ethically sourced diamond side stones surrounding the center stone like clusters of grapes. Shown with a 6.5 mm brilliant cut center stone available using our Center Stone search tools, or by contacting us for options and assistance. Create your perfect engagement ring in any color of gold or platinum with any shape and type of center stone, such as natural or lab-grown diamond, Moissanite, or gemstone(à la carte - choose setting and center stone separately). We marry the two precious elements into one expertly crafted, beautifully designed, stackable engagement ring just for you. Unfortunately, we do not sell our engagement ring settings without a center stone and cannot set client-owned stones. See below for design details. If you need a size that is not shown, contact us!   Your ring will arrive fully assembled with your selected center stone and ring setting, expertly set by our master jewelers. Each piece is crafted with precision and care to ensure the highest quality and lasting beauty. This design works with these center stone shapes: