Why Does the Study of Gemmology Matter?

The art and science of gemmology is a nuanced field that can lead to a fulfilling career. Gem-A tutor Pat Daly considers why gemmology matters, both as a topic of study and discussion and as a tool for commercial gain. Gemstones are exceptional products of the natural world which stand out from other materials by […]
Gemmology Insights: What Makes Red Diamonds So Rare?

Diamonds are the most important of the gemstones used for personal decoration, and none are more elusive than the red diamond. Here, Gem-A tutor Pat Daly breaks down the chances of finding a fancy red diamond, and what specific conditions are required to achieve this fiery natural hue. Most gem quality diamonds are near white […]
Understanding Rare Non-Nacreous Pearls

Beginner gemmologists are often surprised to discover how complex and varied pearls can be. What we see lining the shelves of fine jewellery stores are not the only biogenic materials of interest to gemmologists and trade professionals. Gem-A tutor Pat Daly explores non-nacreous pearls in this article, including conch and Melo melo, and takes a […]
Beginner’s Guide: Understanding the Formation of Natural Glass

From volcanic eruptions to lightning strikes, the formation of natural glasses is a fascinating process of interest to gemmologists. Gem-A tutor, Pat Daly, uncovers the conditions that cause obsidian, rainbow obsidian and fire obsidian to form and explains what professionals in the gem and jewellery trades should look out for. Most solid natural materials on […]
Gemmology Insights: The Importance of Geology and Gemstone Formation

With few exceptions, accessible gem and decorative materials are formed on Earth as a result of geological processes. An understanding of these natural movements and changes can aid gemmologists in their learning and professional practice. Here, Gem-A tutor Pat Daly describes some key elements of gemstone formation, touching on chemistry, high pressures, rock types and […]
Buying Guide: The Best Ways to Care for Gemstone Jewellery

Do you need expert gemstone jewellery care advice from a gemmology expert? Here, Gem-A tutor Pat Daly shares his top gemstone jewellery cleaning tips and offers some advice on caring for your precious gemstones for long-lasting heirloom sparkle. Owners and collectors of gem-set jewellery soon find that they have accumulated a substantial financial and emotional […]
Gemstone Guide: Understanding Moonstones and Adularescence

What are the Moonstones? Those new to gemmology often find themselves drawn to the silvery blue light of moonstones, but trained gemmologists have a finer grasp of what causes this unusual optical effect. Here, Gem-A Tutor Pat Daly dives into the world of moonstones and adularescence, giving an overview to inspire further study via our […]
Buying Guide: Get to Know the Feldspar Family of Gemstones

A genealogical tree for the feldspar family of gemstones Whether you’re shopping for moonstones, obsessed with labradorite, or on the hunt for the perfect sunstone, this is the guide for you. Gem-A Tutor Pat Daly offers a rundown of the feldspar family of gemstones, including beginner’s insights into some of the most popular gems you’ll […]
Gemmology Insights: The Crown Jewels for the Coronation of King Charles IIIÂ

British Crown Jewels – A Gemmological Treasure The British Crown Jewels include ceremonial pieces that will be presented to The King and The Queen Consort during their coronation at Westminster Abbey on May 6, 2023. Looking ahead to this historic occasion, Gem-A Tutor Pat Daly dives deeper into the Coronation Regalia, including St Edward’s Crown, […]
Gemstone Discoveries: Finding a new gemstone!

Could I find a new gemstone? Professional gemmologists are often asked similar questions, like what is the rarest stone they have encountered and is there anything ‘new’ left to discover. The answers, especially to the latter, are not easy to formulate, and there are factors that a gemmologist must unpack to provide a suitable response. […]