Ruby is the July birthstone – and it’s one of the most coveted of gems. The name is derived from the Latin word ruber, meaning “red” – the color of love and passion. Few things catch the eye like the ...

Akoya pearls are the small white pearls that most people picture when they think of pearls. They are saltwater pearls, and are usually round and white or cream, with a pink overtone and high luster.

Following up on Nassau's 1981 article on the technical aspects of heat treating ruby and sapphire, the author reports his personal observations of the actual heat treatment process in Bangkok. He ...

Cultured pearls come in different sizes, shapes, and colors. Perhaps the best-loved gems of all time, pearls—both natural and modern cultured pearls—occur in a wide variety of colors. The most ...

Figure 1. A plain quartz silver pendant measuring 31.50 × 17.00 × 10.00 mm encapsulates extraordinary inclusions of complex hematite crystals. Photo by Conny Forsberg. Careful exploration of the micro ...

GIA programs and courses are offered year-round on a rolling basis at GIA campuses around the globe. This enables students to jumpstart their gem and jewelry career studies at the soonest, most ...

The June Hong Kong Jewellery & Gem Fair opens on June 22, a mid-year trading event for the gem and jewelry trade. Visit GIA at booth 3M100. Learn about sales tools, aids and apps available through the ...

Emeralds, their geographic origin, treatments, synthetics, and nomenclature. 300-million year old rare emeralds staying in North Carolina home (2012) Israel Diamonds ...

Detecting beryllium in sapphires and rubies has been a critical test in modern gemological laboratories ever since beryllium-diffusion was discovered as a color-enhancing treatment in the early 2000s.

Diamond is available in a range of sizes and qualities to fit every consumer's tastes. One of the first things most people learn about diamonds is that not all diamonds are created equal. In fact, ...

Few people outside the gem industry realize the true nature of a gemstone’s journey from the mine to the counter of a store. Whether the gem is being offered to consumer’s at a traditional jewelry ...

金黄榴石柘榴石样本很有吸引力，具备一定的收藏价值。 柘榴石是由多种不同矿物质组成的一个族，因此外观差异巨大。它有很多类别，让人惊叹。这也有助于我们考虑柘榴石的色彩多样性。