Timeless elegance. This adjustable halo heart necklace features a simulated blue opal surrounded by Lafonn's signature Lassaire simulated diamonds in sterling silver using Lafonn's exclusive TR Gold, a new and improved plating process that preserves the rich color of gold and enhances the wearability of our gold-plated styles. Dimensions: Approx. 8.7mm (W) x 10.6 mm (H)