Our Certified Signature Series® Gemstones represent a new achievement and the utmost perfection in diamond simulant creation. The Certified Signature Series gems are subjected to incredibly rigorous standards resulting in extraordinary precision and quality. Every step of the process is monitored by discerning eyes. Each stone is hand-picked and matched. These processes are so exacting that when they are finished, each stone is laser inscribed with a unique Maker's Mark serving as the gemstone designer's and cutter's personal signature and certification that the stone is perfect in all its many aspects.

Each Certified Signature Series® Gemstone, either purchased as a loose gem, or mounted as a center stone in our jewelry will arrive with an American International Gemologists (AIG) Certification and Diamond Simulant Grading Report documenting the exact specifications and characteristics of your individual gemstone.

All Certified Signature Series® Gemstones can be custom laser inscribed with whatever information you desire: names, dates, a favorite quote or memory... only your imagination is the limit.

Previously only natural diamonds from the most prestigious jewelry houses, such as Cartier, Tiffany and Harry Winston offered personal diamond inscribing, and then only on their custom, multi-carat showpieces.

Your inscription will not affect the brilliance of your Diamond Nexus Gemstone, and will only be visible under magnification.* When you gaze into the depths of your beautiful, sparkling gem, only you and your love will know that a private message is reflected in each brilliant facet.

*With every personally inscribed gemstone you will receive an enlarged, laminated image of your inscription which will clearly show your personal and everlasting message.

All loose Certified Signature Series® Gemstones or jewelry set with Certified Signature Series® Gemstones take 8-9 business days to ship.