The Hazen Diamond Necklace designed by Harry Winston, Inc. of platinum and contains 325 diamonds that have a total weight of approximately 131.4 carats. The Hazen Diamond Necklace is a good example of this as it incorporates several different cutting styles, including the pear, baguette, square, and round brilliant cuts. Photo by Chip Clark, Smithsonian Institution.

Diamond Necklaces Sakina Patanwala Golconda diamond necklace, 475 carats @petchchompoojewelry. Diamonds drop necklace 56.55 carats.

Emerald stone and diamond necklace, by shree raj mahal jewellers, delhi