Quality Diamonds


Our Diamond Standards

For over 125 years, people have come to BC Clark to find the highest quality and the best prices on loose diamonds and diamond jewelry. As you shop, you will notice that our diamonds sparkle more, have more fire, are more brilliant. It’s in the way we buy diamonds. We step beyond the conventional assessments and 4Cs to select only the finest to become BC Clark diamonds. 


Hand-Selected Diamonds

Only the most beautiful diamonds will become a BC Clark diamond. All our diamonds are hand-selected by the Clark family and carefully graded for color, internal clarity, finish, proportion, and cut. To assure our high quality standards, each diamond is graded by an independent laboratory and verified by a member of the Clark family (Certified Gemologists) before it is ready for sale.

Superior Diamond Quality

Choosing a BC Clark diamond that is graded “nearly colorless” (or better) in color and “SI” (or better) internally assures you that your diamond is among those of rare and exceptional quality with the fire and intensity to match. Potential BC Clark diamonds must also pass our rigid standards for cut before they are chosen. Fewer than 3 percent pass the test!

We encourage you to shop and compare. The proof is in the sparkle.

Grading Reports

BC Clark diamonds are not only carefully curated, but also graded by the world’s leading diamond grading authorities, including the Gemological Institute of America (GIA), the American Gem Society (AGS), and the De Beers Group Institute of Diamonds (Forevermark). Trained gemologists with specialized equipment measure the weight and dimensions of the diamond and assess quality characteristics such as cut, color, and clarity. Each diamond has a certificate or grading report highlighting the quality of the diamond as provided by these independent gemology labs.