Simple and classic!  This is one you will just keep on all the time. 
Moonstone can nourish, give passion, and guide you to your inner path. It exudes a glowing vitality that can re-energize the mind and body and wash negativity away. Since it is enveloped by strong rays of gold, blue, and purple, Moonstone is perpetually embraced with a gleaming white energy that makes it a protective gem.
Diamond, in its rarity and beauty, is indicative of the loving and open nature with which one came into the physical realm, and encourages the aspect of truth and trust. 
*Can be worn at 16,17 or 18 inches long....great for layering if you want to.