Blue Topaz Diamond Sterling Necklace - Featuring ~ The prettiest genuine Sky Blue Topaz gemstone prong set with the tiniest hint of flush set genuine diamonds and finished with a delicate, feminine sterling silver chain and clasp. Blue Topaz 7mm ~ round and gently faceted. Length 18" Topaz 7mm .8mm Diamond round cut 0.48 DWT ( 0.75 grams) *Complimentary Standard Shipping within the US. *Other Stones Available. Price Quotes upon request.