Ships within 2 days Lovely 1.15 cttw Aquamarine and Tanzanite Pendant Necklace .925 Sterling Silver. The sparkling 8x6 MM 1 cttw Oval Shape natural Aquamarine and 0.15 cttw round shape Tanzanite gemstones are heat treated. The width of the pendant is 1/3 Inch while the height is 3/4 Inch. 18 inch .925 sterling silver chain is included.