Logan Hollowell Online & In-Store Exclusive 18k Yellow Gold, Rose Gold, White Gold, or Platinum  Pictured is a 3.00ct marquise shape white diamond, but can fit any stone size of your choosing. 0.45ctw Round White Diamonds Final price varies depending on carat weight, color and clarity of center stone. Please schedule an in person or virtual appointment to learn about our engagement ring process and pricing. Options for upgraded diamonds or custom gemstones always available.