This rare tourmaline gemstone has medium pink on one side that grades into a light gray-green at the opposite end. These are 100% natural colors - this beautiful collector gem is unheated and untreated. See also another photo of this genuine bi-color tourmaline gemstone. ***This fine quality gem is completely eye clean even under close inspection. It is very well faceted in this octagon shape gem from a natural watermelon tourmaline crystal that was mined ethically and respectfully in Nigeria. This natural color tourmaline gem weighs 3.33 carats. ***Tourmaline Gemstone Dimensions: 9.6mm x 7.7mm x 5.1mm deep Shape: faceted octagon ***A Certificate of Authenticity from our main website mineralminers.com will accompany this unique collector gemstone item at no additional cost. Watermelon Tourmaline is very popular today for metaphysical use, Watermelon Tourmaline is said to soothes the heart and counters anger or resentment. ***It is also know to aids in releasing stress, especially when used in meditation. This crystal is thought to calm the mind and soothe emotions. To learn more about Tourmalines, please copy and paste the link to our Tourmaline Educational and Information page at: https://www.mineralminers.com/html/touminfo.htm#tourmaline-mineral-information At MineralMiners.com your satisfaction is our top priority! We guarantee Unique Items, Superb Energy and Collector Quality at Miner's Prices! ? Have a "Gem" day!