Marina's Rose Goldtone Cushion Cut Engagement Ring with Pink CZs Be pretty in pink with Rose Gold Tone Cushion Cut Engagement Ring with Pink CZs. The .925 sterling silver, rose Gold Tone design features a stunning cushion cut CZ center stone measuring 3.87 carats. The center stone is surrounded by smaller CZ stones creating the coveted halo engagement ring effect. Round cut CZs are featured halfway down the band creating extra sparkle. Turn heads and create a magical look with this brilliant ring!