Black obsidian coaster Luxury black obsidian coaster: 100% natural gemstone - black obsidian crystal, with luxurious gold edge to showcase your style and stand out on any dinner table or cocktail/whiskey bar. Black obsidian coasters are good for home indoor decoration, scene setting, improve the quality of life. High-quality coasters look elegant anywhere and the gold edge doesn't chip like other cheaper versions. Great value gift as a housewarming, wedding, engagement, anniversary, thanksgiving, bridal gift, christmas, new year present. You could also use them to display your jewelry, necklace or other precious ornaments and other accessories, it can be use as ring holder, small jewelry tray. Dimension: 4" to 5" dia Ingredients/materials: Brazilian agate stone Weight: 0.68lb - 0.81lb