Zambian Emerald and White Zircon Sunburst Pendant Necklace 18 Inches in Platinum Over Sterling Silver 1.50 ctw

This necklace is from an estate purchase and pretty much brand new as it shows no signs of wear  

 AAA Zambian emerald stone in the center surrounded by white zircon accents around the halo and bale. This is platinum plated over sterling silver. Chain measures 18 inches. Emerald stone has been treated for color. Estimated retail value is over $1,500. This information came from the website the original owner purchased it from. The AAA rating on this emerald comes directly from the website it was originally purchased from, not my own rating or opinion. 

Emerald is the birthstone for May