Some necklaces are dainty and sweet while others are commanding and bold. This collar necklace by Alexis Bittar ($595) falls into the latter category. This piece demands to be center stage. Wear it with confidence to your next power meeting. Inspired by a box of antique jewelry he received from his parents as an adolescent, Alexis Bittar embarked on a jewelry-making career that emphasized intricate attention to detail. His bold pieces have attracted the attention of acclaimed designers around the world (he has collaborated with several well-known fashion houses on their own jewelry collections) and his pieces can be found in such museums as the Victoria & Albert in London.