A Rare Untreated Morro Redondo 11.87tcw Watermelon Tourmaline & Diamond 18kt Yellow Gold Ring. This stunning intense pink/blue/green tri-color emerald cut untreated natural Brazilian Watermelon Tourmaline has outstanding clarity with very slight visible inclusions. Pictures are magnified 50x to show detail and are not visible to the naked eye. This mesmerizing, glowing, tri-color is most prized in the gemstone industry. It measures 16.41×11.24×6.85mm and weighs 11.37 carats. The round and emerald cut natural diamond pave accents (10 total) weigh .50 carats and are H color with VS-SI clarity. These amazing high quality stones are set in a bold solid 18kt Yellow Gold pave diamond 4-prong detailed floating setting and is clearly marked 750. The ring weighs 6.6 grams and is a easily re-sizable size 5 1/4. Watermelon Tourmalines have been mined out for many years and are becoming hard to find. These Tourmalines are very collectible and are sky rocketing in value. The exclusiveness of this legendary find makes these rare gemstones real treasures. The tri-color make these stones radiate with intense . The largest occurrence of Tourmaline in the history of Brazilian gem mining was the Morro Redondo Tourmaline deposit in the state of Minas Gerias, Brazil. The mine was open from 1992-1997. The Watermelon Tourmaline is a rare variety that displays three different colors in the same crystal-green (the skin of the watermelon), the pink (the sweet fruit) and the white (the ring). This occurs naturally and is a rare occurrence in nature making these extremely valuable especially untreated. What Watermelon Tourmalines can do for you: Attract love, balance the male and female energies within yourself, remove imbalances and guilt caused by conflicts and confusions, the green part feeds your life force, while the pink soothes and harmonizes. All of the Tourmalines are used for their strong healing energies. The Watermelon variety is used by crystal healers to encourage a calm and centered state of mind. The quality and design of this ring is breathtaking.