Check the listing for details. Gemstone Connector-Tiny Birthstone Connector-Sterling Silver 6mm Bezel Connector. Condition: New. Listed at 2.95 USD. Gemstone Connector-Tiny Birthstone Connector-Sterling Silver 6mm Bezel Connector Frame Material: Solid Genuine .925 Sterling Silver.Shape: Faceted coin on both sidesMeasurement: 13mm with both rings, stone is 6mmSKU#: 209116Quantity: buy a set of 12 or single piecesBirthstones:January-Garnet:A symbol of friendship, loyalty, good health and devotion.February-Amethyst:Symbolizes peace, protection and tranquility.March- Aqua:A symbol of youth, happiness and beauty.April-CrystalMay-Emerald:A symbol of fertility, rebirth, goodness and is regarded as an amulet for good fortune.June-Moonstone:Brings good fortune, promotes inspiration, enhances intuition and offers healing properties.July- Ruby:Believed to be a symbol of fire, success, devotion, integrity and passion.August-Peridot:Seen as a powerful amulet to ward off evil and offers protection.September-Sapphire:Represents truth, sincerity, commitment, consistency and loyalty of the heart.October-Opal:Promotes a sense of calm and security, eases stress offering emotional support.November-Citrine:Symbol of hope, youth, health and fidelity.December-Topaz:Symbol for attraction, brings friendship to those who wear it. Used for courage, wisdom and strength.These stones are known as hydrothermal quartz, which contains the same physical, chemical and optical properties of a natural stone. The picture shows the shape of the product, for actual size please read the measurement.