<https://hwilliamsjewellery.com/product/sapphire-diamond-halo-necklace/#product>
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"Perfect for layering with your favourite necklaces! This 14k white gold pendant features a genuine blue sapphire in a halo of shimmering diamonds. It is fixed at the center of an adjustable rolo link chain. Pendant Diameter: 6.2mm"
<https://hwilliamsjewellery.com/product/sapphire-diamond-halo-necklace/>