Rocks Couture Aquamarine Collection Platinum Ring Set with an Oval Cut Aquamarine Centre Gemstone Surrounded with a Halo of Diamonds. The 1.55ct Aquamarine has a 0.36ct diamond halo and diamond set shoulders. The striking Oval gemstone is a beautiful alternative to a traditional white diamond engagement ring. The Aquamarine gemstone brings tranquility, serenity, clarity, and harmony. They are also the birthstone for March. A beautiful item to mark special occasion, milestones and birthdays. Aquamarine Carat Weight:1.55ct Diamond Total Carat Weight: 0.36ct