Gemondo Sterling Silver Five Stone Blue Topaz Round Gradient 45cm NecklaceAbout This Item 5 round cut gradient size blue topaz gemstones sit on a classic sterling silver bar. Pendant hangs on 45cm sterling silver chain. Gemstone Information Blue Topaz gets its bright colour by heating colourless topaz until it turns the signature blue shade. Blue Topaz is the November birthstone, and is the traditional gemstone gift for a 4th anniversary. Blue Topaz has many royal connections across many cultures, with the Portuguese Royal