Black spinel. This rare gem is often confused with black onyx. Being the superior of the two in quality we have here the start of what we hope to be a fabulous collection of black spinel jewelry for you. The spinel stone has a history as far back as the the beginning of royalty. What was once believed to be the Royal Ruby of England turned out to be a red spinel. Nothing beats the black shine of a black spinel and our trendy black spinel beaded necklaces are truly a class apart.