Very Nice English Blue Topaz Sterling Silver Necklace.The drop pendant features an elegant single blue topaz cushion checker board briolette is set in silver. The topaz measures 14.0 x 14.0 mm. The pendant measures 25.0mm long. The pendant is suspended from silver chain of 1.0 mm thickness. The pendant's weight is 2.70 grams. . The total weight of the necklace is 4.80 grams with a total length of 47.50 cm and it is completed with a secure spring-ring clasp.