Material - 14k solid yellow gold. Gemstone weight - 0.440 ct. Diamond weight -0.020 ct.Gross weight - 0.90 grams. Synonymous with vitality, energy, and sensuality, this is an excellent stone that helps you recharge your dropping energy levels and induces positive thoughts in your mind. The stone imparts good health and mental strength to the wearer. An epitome of undying love, the naturally deep red ruby stone inculcates the feelings of love, warmth, and compassion in the heart of its wearer. You can also go to my shop home for more. Kindly let me know if you have any questions about this product. We offer free resizing, and any customization is welcome. A satisfied customer is our top priority, and we try our best to make these timeless pieces for you. Thank you for your time, happy shopping. This item is made of gold and stone, ruby.