"Rose Gold Oval Blue Aquamarine Pendant, Horizontal East West Prong Set Necklace, March Birthstone Everyday Pendant Here is a rich blue natural oval aquamarine that is prong set in sterling silver with the option to rose gold or yellow gold plate it. The oval aquamarine is set in the east west direction with an open back. This sweet blue necklace makes a perfect gift for the March birthdays and a something blue for the brides. There are 3 different sizes: Option A - about 13x10mm Option B - abou