Category: Gemstones

When it comes to gemstones, blue spinel and sapphire are often compared due to their similar appearance. Both are known for their…

Emeralds are highly prized gemstones known for their vivid green colour, which can vary depending on where the stone was mined. In…

Spinel and ruby are among the most stunning and sought-after gemstones. These gems have similarities; however, they also have distinct differences that…

Rubies are among the most popular gemstones in the world, prized for their rich red colour and exceptional beauty. But choosing the…

Demantoid is highly prized by collectors and jewellery enthusiasts for its unique vivid green colour, exceptional brilliance and rarity. This green gemstone…

The refractive index and double refraction are some of the most important optical properties of gemstones used for identifying stones. With the…

Turquoise, one of the world’s most ancient gems, is the birthstone of December, along with tanzanite, blue zircon and lapis lazuli. It was used…

Moonstone, one of the three birthstones of June, is a unique gem that displays a rare glowing sheen known as adularescence, resembling the glow…

Whether you are an expert looking for professional development or a gemstone lover looking to build a career in gemology, success requires…

At first sight, aquamarine and paraiba tourmaline are similar-looking gemstones. Both have soft blue to greenish-blue colours; however, the range of their…

The name of gemstone cut usually describes both the face-up appearance and the arrangement of facets, also known as gemstone cutting styles.…

Paraiba tourmaline, named after the region in Brazil where it was discovered in the late 1980s, is one of the rarest and…