We do not use any type of chemical in our plating process to enhance the shine & lustre of the metal which are harmful to your skin. How to mention the ring size? As all our rings are'made to order', you can get any size you want. We offer full customization on each product. If you have a design.In mind, we can manufacture customised products as well. We offer engraving service absolutely at free of cost on each product. All our products are'Made to order' so it takes about 10 days in processing the order as we do not carry any physical inventory. This item is in the category "Jewelry & Watches\Engagement & Wedding\Engagement Rings". The seller is "florencejewelers" and is located in this country: IN. This item can be shipped worldwide.