Ross-Simons - .30ct London Blue Topaz Bracelet, Swiss Blue Topaz, Diamond Accents. 6.5". RS Pure. Modern designs that complete your outfit and complement your personality. Stationed on a simple rope chain with a 1/2" extender, a .30 carat London blue topaz with a Swiss blue topaz and diamond accents shimmer in polished 14kt yellow gold. This dainty bracelet gives you the subtle dose of color your stack needs. Springring clasp, London blue topaz bracelet. Blue Topaz birthstones are the perfect gift for December birthdays.