At Wexford Jewelers, we believe that every diamond tells a story, and that story often holds deep emotional significance. A heartwarming yet poignant experience reminded us of the importance of our diamond grading and testing services. A mother and daughter came into our store, excited to design an engagement ring using a cherished family heirloom stone that had been passed down through generations. It was a moment filled with anticipation and nostalgia—the daughter dreaming of her future while holding a piece of her family's history close to her heart.
Before we began on the design process, I conducted preliminary tests and measurements to ensure we could craft the perfect ring. However, to my surprise, the stone, which had been lovingly passed down by the daughter’s late grandmother, turned out to be merely an A cubic zirconia (CZ). The discovery was a bittersweet moment; although the family held sentimental value in the heirloom, the truth left them with lingering questions about its authenticity and the legacy it represented. Grandma had taken her secrets with her, leaving behind a beautiful memory but also a mystery that needed unraveling.
This experience underscores the essential nature of our diamond grading and testing services. At Wexford Jewelers, we emphasize the importance of conducting thorough authentication and grading processes to ensure that every precious stone is accurately represented. Our comprehensive services not only help identify whether a diamond is natural or lab-grown, but they also delve into the stone's clarity, color, and cut. This ensures that your cherished gems are not only beautiful but also hold the true value that they deserve.
Join us as we unveil the secrets of diamond grading and learn how we can help bring clarity and confidence to your treasured stones.

At Wexford Jewelers, we pride ourselves on providing unparalleled diamond services that encompass both authentication and grading, ensuring your precious stones are assessed with the utmost accuracy and care. Our state-of-the-art testing equipment allows us to perform a variety of essential tests, beginning with the Presidium, which expertly separates diamonds and moissanite from common colored gems and diamond simulants. This is followed by a specialized test that distinctly differentiates moissanite from diamonds. Most recently, we have acquired sophisticated equipment capable of identifying and separating natural diamonds from their lab-grown counterparts, further enhancing our commitment to providing the highest standard of service.
Once authentication is complete, we transition into the diamond grading process, meticulously assessing each stone through a comprehensive series of steps. Each diamond is weighed and measured, whether it is loose or set in a piece of jewelry. Using a 60-power microscope, we analyze the clarity of the diamond, while our lit color grading set allows us to match your diamond against a spectrum of colors to find the closest match, ensuring an accurate representation of its hue. This process is crucial, as the color quality significantly impacts the diamond's overall appeal and value. Additionally, we evaluate whether your diamond exhibits fluorescence, a characteristic that can influence how the stone appears under various lighting conditions, potentially enhancing or diminishing its visual beauty.
Our thorough evaluation doesn't stop there; we also assess the cut and proportions of your diamond, which are integral to its brilliance and overall value. The cut determines how well a diamond reflects light, and understanding its proportions allows us to gauge its ability to sparkle and shine. Each facet, angle, and curve is carefully analyzed to provide you with a comprehensive grading that reflects not only the diamond's beauty but also its market value. At Wexford Jewelers, we ensure that every aspect of your diamond is scrutinized with precision and expertise, giving you the confidence that comes with knowing your gemstone has been graded by certified professionals.
Written by: Julie Terwilliger