925 Sterling silver with 4.2mm round natural blue topaz @ $188 Ring is custom to fit, after 50% deposit, next day ring sizing. Item will take 3-4 weeks to deliver. November birthstone blue topaz Sagittarius Nov 23 ~ Dec 21 Individuals born in November can choose between two sunny gemstones to brighten up this chilly month. November’s birthstones, topaz and citrine, are both known for their calming energies, bringing warmth and fortune to those who wear them. Topaz and citrine look so similar, in fact, that they’ve often been mistaken for one another throughout history. They are actually unrelated minerals, and topaz occurs in a wide spectrum of colors far beyond yellow. Both of November’s birthstones are fairly abundant and affordably priced, even in large sizes, which means everyone can find a way to fit topaz and citrine into their budget.