They also may be created synthetically in laboratories for industrial or decorative purposes in large crystal boules. Commonly, natural sapphires are cut and polished into gemstones and worn in jewelry. Pink-colored corundum may be classified either as ruby or sapphire depending on locale.

Red corundum stones also occur, but are called rubies rather than sapphires. It is typically blue, but natural 'fancy' sapphires also occur in yellow, purple, orange, and green colors 'parti sapphires' show two or more colors. The name sapphire is derived via the Latin 'sapphirus' from the Greek 'sappheiros', which referred to lapis lazuli. GS allows you to check Appraisal cert numbers online.Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide ( α- Al 2 O 3) with trace amounts of elements such as iron, titanium, chromium, vanadium, or magnesium. An appraisal is not an indication of your buying power, that depends on your ability to 'wheel and deal' as well as your source of supply and ability to buy in parcel lots or in bulk. For this reason, only accredited and experienced appraisers are used to evaluate stones. We also have a number of Certificates from EGL a global appraisal company to the gem industry whose Toronto offices have since closed down.Īn appraisal will assign a monetary value to a Gem or piece of jewelry and is ultimately subjective based on the appraiser's criteria for grading and experience.

We typically use AGL or GS Labs (Gemscan), accredited appraisal companies (with Global Offices) for the Jewelry industry, located in downtown Toronto. While many companies do appraisals (such as jewelry stores), it is important to receive an appraisal by a group that does not involve themselves in the buying or selling of Gems or jewelry pieces as to avoid any conflict of interest. 3.90 Natural Midnight Blue Sapphire GemstoneĪppraisal Certificates are done from accredited appraisers and represent the retail insurance replacement value for an item.

Blue sapphire pendant