Sapphire Blue CZ Pendant Necklace  in Sterling Silver,  0.5 carat Sapphire Blue Zircon Necklace, Blue Necklace Dimensions : 40+5cm extension chain.  Stone size is available in  5mm (0.5ct) or 6.5mm (1ct)- for size comparison, please see the last picture.  Metal Stamp: 925 SRS ( SRS is our brand initials for Silver Rain Silver) Materials and Care: These are made of sterling silver and coated with precious metal Rhodium. They are hypoallergenic. They are tarnish resistant but please keep in a seal Blue Sapphire Birthstone Necklace Gift, Blue Sapphire Birthstone Necklace For Gift, Sapphire Birthstone Pendant Necklace, Sapphire Tanzanite Birthstone Necklaces, Blue Pendant Birthstone Necklace For Anniversary, Sapphire Birthstone Necklace In Lab-created Sapphire, Sapphire Birthstone Necklace With Lab-created Sapphire, Blue Diamond Cut Necklace In Sterling Silver, Lab-created Sapphire Birthstone Necklace