Check the listing for details. Sterling Silver Diamond Cluster Ring Square Cushion Halo Engagement Ring Size 7. Condition: New with packaging. Listed at 30.00 USD. This Sterling Silver Diamond Cluster Ring is the perfect choice for an engagement ring. The square cushion halo design features a cluster of 8 diamonds surrounding a larger cushion-shaped main stone, creating a stunning and elegant look. Made of 925 sterling silver, this ring is of high quality and will shine as a symbol of love and commitment. The size 7 ring is a beautiful choice for any bride or groom-to-be looking for a luxurious and classic piece of jewelry.