Internally Flawless diamonds are incredibly rare - less than 0.5% of diamonds fall into this category (source - www.gemsociety.org). The centre store is an Internally Flawless natural diamond. The band itself is a unique 18k Gold band at size 6. Includes all Tiffany & Co. purchase trinkets (1 x Tiffany blue ring box, 2 x Tiffany storage boxes, 2 x Tiffany bags). For diamond authentication and secure payment through Louped payment app please visit - https://louped.com/internally-flawless-3-ct-tiffany-co-setting-engagement-ring120190.html (Please be aware, buyers commission charged when purchased through Louped) Or Contact me directly on ashraful-islam1@outlook.com UK and US delivery