Short Gem Stone Necklaces Short Gem Stone Necklaces On Sterling Silver Chains. £45.00 Beautiful Gem Stone necklaces, the perfect gift for any occassion. Choose from Aqua Marine - Believed to contain the power of the sea. Amethyst - Protects against domestic violence & addictions. Rose Quartz - The stone of Self Love & Self Care. Citrine - The Positivity stone, only 1 of 2 stones that repels negativity. Garnet - A stone for Happiness & Wellbeing.