This is a ring made of real 925 sterling silver and coated with rhodium. It features a lab-created opal that has a phenomena color and is prong set on a 2mm wide band. The stone weighs 0.31 carats and has an oval shape, measuring 6x4mm. This ring is solid and has been casted. It is a gemstone ring, specifically an October birthstone.Material: Primary - Purity: 925Stone Type 1: Opal, Lab CreatedStone Color 1: PhenomenaStone Quantity 1: 1Plating: RhodiumBand Width: 2 mmStone Setting 1: Prong SetStone Weight 1: 0.31 ctFeature: SolidManufacturing Process: CastedMaterial: Primary: Sterling SilverStone Shape 1: OvalStone Size 1: 6 x 4 mmStone Treatment 1: ImpregnationItem Weight U/M: gmProduct Type: JewelryJewelry Type: RingsMaterial: Primary - Color: WhiteRing Type: GemstonePlating Color: Silver ToneStone Creation Method 1: Lab CreatedBirthstone Month: (10) October