Our Story
Uncovering the extraordinary.
Every gem has travelled millions of years to reach your hands. We honor that journey with expertise and integrity.

"We believe every customer deserves the same brilliance we look for in a stone — clarity, honesty and lasting value."
— Costa Carol Elaine, CEO
Xcellent Rocks Mystery LLC is a Denver-based company dedicated to buying and selling diamonds, gold, precious stones and metals, along with fine jewelry and related products.
From first-time sellers to seasoned collectors, we provide knowledgeable guidance, fair market pricing and a private, comfortable experience.
Diamonds
Expert grading
Metals
Accurate testing
Jewelry
Estate to modern