December's birthstones offer three ways to fight the winter blues: tanzanite, zircon, and turquoise—all of them are best known for beautiful shades of blue.
With Accredited Gem Lab
Offers AGS Labs Diamond Grading Reports
AGS Certified Member:
- Keith Hurdle, CG
Address: 1402 Pearl St, Boulder, CO 80302-5307
Phone: (303) 443-1084