BEAUTIFUL! COLOR CHANGE, SEA FOAM GREEN PRASIOLITE gem with Lots of Sparkle! Flash! and Luster! It changes color depending on the light source. Indoors it has a Pale Gray color, but in Natural Outdoor Sunlight, it turns a Beautiful Sea Foam Green. This Prasiolite gemstone is 100% Real, Natural, Genuine, and Authentic. It will look Beautiful in a Ring, Pendant, or Necklace setting! Gemstone -- PRASIOLITE Weight ------ 1.00ct apx. Shape ------- Rectangle Cut Color -------- Changes from Gray to Sea Foam Green Size --------- 6.6x4.4mm apx. Hardness --- 7 on the MOHS Scale Care and Handling: Avoid long exposure to heat and sunlight. Normal care. Prasiolite (Praziolite) also known as Green Amethyst, comes from the Quartz family of gemstones, which includes: Amethyst, Ametrine, Aventurine, Black Quartz, Citrine, Ginger Quartz, Lilac Quartz, Oro Verde, Smoky Quartz, Rock (Colorless) Quartz, Rose Quartz, Tourmalinated and Rutilated Quartz, Tiger's Eye, Violet and Watermelon Quartz. Prasiolite is believed to free your mind from the mundane and trivial, relieve stress and tension, raise your spirits, increase your intuition, and protect you from negative vibrations. We know you'll love this Beautiful, Natural PRASIOLITE 1.00ct Rectangle Cut COLOR CHANGE Faceted Loose Gemstone! We Ship Internationally also. For International Shipping Rates, please email us before purchasing: finejewelry-gemstones@earthlink.net