Our expert gemologists use advanced equipment to meticulously weigh and measure each diamond, thoroughly assessing its cut, color, clarity, and carat weight. We ensure every diamond in our collection is independently verified for authenticity and quality. Each diamond is accompanied by a certificate, also known as a grading report, which is an authoritative assessment from an independent gemological laboratory. Our commitment to excellence is reflected in our diamonds being certified by the world's foremost gem grading authorities, including the Gemological Institute of America (GIA), the International Gemological Institute (IGI), Hoge Raad voor Diamant (HRD), and the Gem Certification & Assurance Lab (GCAL).
What determine's a diamond's quality?
At GOODSTONE, we see every diamond as a masterpiece of nature, each with its own story and character. Like artists, our expert cutters work to unveil the hidden splendor within each stone, accentuating its unique charm. Think of the 4 Cs as the palette – cut, color, clarity, and carat – which paint the portrait of the diamond's quality. While these elements are our guide, beauty is in the eye of the beholder; many of our clients choose to highlight one quality over others, creating a piece that's not just a jewel but a personal treasure.
How are diamond grades and ratings decided?
The Gemological Institute of America (GIA) stands at the forefront of gem evaluation and grading, renowned for its impartial and authoritative approach. As the benchmark setter in the diamond industry, GIA has established a comprehensive scale encompassing cut, color, clarity, and carat. This scale is universally adopted by jewelers and appraisers as the definitive guide for assessing diamond quality.