4.20ct t.w. Sapphire Station Necklace, Diamonds In Silver We are pleased to present our fabulous necklace at a fabulous price! Shimmering 4.20 ct. t.w. oval sapphires and .20 ct. t.w. diamonds alternate on a sterling silver chain to create a necklace that gives a fresh new angle on style to any ensemble. Looks great on its own or when layered with others to get the latest global look. Polished sterling silver necklace. Sapphire birthstones are the perfect gift for September birthdays.