Gemologist Guide to Identifying Opal

Australian opal

Opals are very common but there are lesser know varieties as well. It is recognized as the October birthstone and most of the material is sourced from Australia. There are multiple deposits of opal across the world and each one has a unique look due to the matrix it grows in. Individual opals can vary […]

Gemologist Guide to Identifying Alexandrite

cat's eye alexandrite

Alexandrite is one of the most sought-after precious gemstones because it has a unique attribute that other precious gemstones don’t have. When it is placed in the sunlight, alexandrite shows a strong color change from bluish-green and red to purplish-red in incandescent light. A faceted alexandrite tends to have very few if any inclusions but […]