About Us

SGL Laboratories are respected diamond grading laboratory. We have pioneered the development of the first scientific system used to evaluate how well a diamond has been cut. When a diamond is well cut it reflects and refracts light to the maximum degree. SGL has been acclaimed as a worldwide innovator due to our extensive research and development in determining the cut grade of diamonds. SGL are very well known for using the cutting edge equipment and our experienced and knowledgeable staffs is our biggest asset. SGL Laboratories are respected by diamond manufacturers, jewelry retailers, and consumers alike for accuracy and consistency in every aspect of diamond grading. SGL laboratories have successfully gained the ISO 9001:2008 – RONET sign of quality and excellence in management and consumer-trade loyalty. One of the distinguishing factors that separate SGL laboratories from other diamond grading laboratories is that the mission of SGL Laboratories is to protect its consumers.

Vision & Corporate Responsibility

Since ancient times, diamond has been an enduring symbol of integrity – flawless, indestructible and eternal. These are the very qualities that inspire Independent’s vision and mission. A passion for excellence with the dedication to achieve highest standards of professionalism and to surpass customer expectations. We believe is setting benchmarks with every passing certification. Veracity is the touchstone upon which certification rests. Hence, our area of work is restricted solely to the scientific evaluation of gemstones, based on established and globally recognized parameters. We do not participate in any commercial activity whatsoever within the gem and jewelry trade. Our core responsibility lies in providing authentic and reliable information to our clients. In the gemstone trade, that will protect them and in the long run and promote the healthy growth of the industry.

Know where you stand, get your diamond appraised!

The acquisition of a diamond or precious gemstone can be an important expression of love or accomplishment that simultaneously represents a major investment. It is essential for a diamond proprietor to have certification of the characteristics of the diamond in order to obtain confidence in the integrity of what they have acquired. An SGL Diamond or Gemstone Certificate is a statement issued by one of our independent gemological laboratories documenting the characteristics of the stone as determined by our experienced diamond graders at the time of evaluation.