GOLD COLOR PREGNANCY BRACELET | MOTHER-TO-BE & PREGNANCY GIFT | f-de-bm creations. This pregnancy necklace is made of a 12 mm copper musical ball then covered with a layer of 0.33 micrometer gold with a bracelet made of a very pretty grey cord with plated brass beads. This bracelet fits wrists up to 24 cm. The pregnancy necklace is a nice gift idea for a pregnant woman. A pregnancy necklace is a unique piece of jewelry in a lifetime, the memory of her pregnancy and her baby for the history of Ebola. Pregnancy ball, also called bulan bola, is originally from Indonesia. Because it is a jewel intended only for adults and then transmitted to their child who can make it last into a future pregnancy. Attention this pregnancy necklace is jewelry for adults, it is not suitable for children.