Tanzanite necklaces in solid 14k gold and platinum. Tanzanite's violet-blue shifts with the light, and this collection runs from an everyday pendant and a peace charm to round, oval and square solitaires, a bezel station, a diamond bar, and diamond-framed and halo pendants up to a 7 mm statement. Tanzanite is softer than sapphire, so clean it gently and skip ultrasonic cleaners. Every necklace is made to order and ships fully insured.