3.75 carats total weight Oval Round Shape Swiss Blue TopazMulti-Gemstone Necklace in Sterling Silver Stones: Genuine Swiss Blue Topaz: 1 piece, Oval Shape 9x7mm Genuine Swiss Blue Topaz: 11 pieces, Round Shape 3.00mm 3.75 carats total weight Gemstones have a deep rich color and tremendous fire. Necklace: 4.40 grams Pure Sterling Silver with .925 stamp Box Style 16 to 18 inch adjustable length, 1 3/4 width Approximate Retail Value: $99.99 Necklace features a one of a kind design with a beautiful White Gold finish.