You can also choose to elevate the ensemble by fashioning your floral necklace with small diamonds that encircle its centerstone. The surrounding diamonds in your blue tanzanite necklace will make sure that the tanzanite centerstone will never miss catching the light. This type of design works for those who like wearing dramatic jewelry pieces. Curved Bar Necklace If you’re the kind of person who likes to look stylish and fashionable then a curved bar blue tanzanite necklace is perfect for your neckline. The design of curved bar necklaces features a horizontal bar of metal attached on both sides with a matching chain of metal. You can also engrave your name on your curved bar necklace to give it a more personalized look and feel.