Who needs a key to your heart when you have The Sonic Solitaire. Embellish with your choice of colored stones that can represent almost anything, keep it true to Dr. Who colors, add a birthstone or go crazy and add a real diamond and make this "The Ring" using our custom settings. PMD Diamonds are available at www.PaulMichaelDesign.com. Anything is possible. >>Please note your stone choices in your order. << Remember any "No Stone" purchase will be devoid of a center stone so you can put your own stone in there (6-6.5mm) I will set your stone for an additional charge of 20.00 you are responsible for shipping your stone to my studio. Stones available- (from left to right in the second pic) -Amethyst - Citrine -Cubic Zirconia (CZ) -Created Emerald -Created Ruby -Peridot -London Blue Topaz -Swiss Blue Topaz -Created Blue Sapphire -Smokey Quartz -Garnet So plenty of choices to consider. Since all of our items are made to order, please allow 4-6 weeks for production. **Disclaimer** The pictures shown are renderings of live geometry in a CAD model. Therefore the actual piece may look slightly different. Each piece is made by hand in our studio, and there are natural variations inherent to the process. We offer a 100% satisfaction guarantee.