This simple and timeless necklace is made of Platinum and AA quality Emerald & .02 CTW Diamond Necklace. Specifications: Genuine AA quality diamond cut Emerald and .02 CTW Diamond Necklace Finished State: Polished Primary Stone Type: Environmentally-friendly Lab-created green Emerald or AA grade natural Emerald Primary Stone Size: 3 mm Primary Stone Shape: Round Dimensions: 18 In Chain Width: 1 mm Necklace Pendant Width: 4.1 mm Necklace Pendant Length: 8.3 mm Width: 8.3 mm