Welcome to the Gem-A Blog. Here, you will find up-to-date information on the latest news and trends, exclusive features and regular reports from a host of gemmology insiders. Each month we will share highlights from our printed publications and take you behind-the-scenes at our popular Gem Central events. Would you like to submit an article for the Blog? Email us on editor@gem-a.com


Breaking down the Misunderstandings about Precious Coral

Breaking down the Misunderstandings about Precious Coral

Inspired by Pantone’s ‘Color of the Year 2019’, Rui Galopim de Carvalho FGA DGA dives into the underwater world of precious coral and addresses some of the misunderstandings around its use in the jewellery industry.

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How to Identify Antique Edwardian Jewellery

How to Identify Antique Edwardian Jewellery

Understanding how to identify jewellery from different eras and design movements is essential for historians, valuers and antique collectors. Here, Starla Turner FGA GG offers us a glimpse into the refined and elegant world of Edwardian jewellery and describes the motifs that make pieces recognisable. 

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Understanding Sugilite

Understanding Sugilite

The Gem-A Gemstone & Mineral Collection contains this vivid purple sugilite specimen. Here, assistant gemmology tutor, Dr Juliette Hibou FGA, explains more about this unusual mineral that was only discovered in 1944.

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Buying Guide: Coloured Diamonds from Least to Most Valuable

Buying Guide: Coloured Diamonds from Least to Most Valuable

The typical image of a diamond tends to be of a clear and colourless stone, therefore it is hardly surprising these are presumed to have the highest monetary value. In reality, diamonds can be discovered in a rainbow of colours, some of which command exceptional prices. Discover more here.

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Birthstone Guide: Emerald for Those Born in May

Birthstone Guide: Emerald for Those Born in May

Those born in May are lucky enough to count emerald as their birthstone. Here, Gem-A gemmology tutor, Lily Faber FGA DGA EG, explores the history and qualities of this beautiful green beryl.

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Beginner's Guide: Emerald Inclusions and Origin

Beginner's Guide: Emerald Inclusions and Origin

Since the time of the Ancient Egyptians, emeralds have been viewed as tokens of good fortune and harbingers of new beginnings and rebirth. While emeralds are fascinating from a historical and culture perspective, they are equally exciting for gemmologists, particularly when it comes to inclusions.

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Understanding Selenite

Understanding Selenite

The Gem-A Gemstone & Mineral Collection contains this fantastic selenite specimen with grass-like green blades that shoot-out from the host rock. Assistant gemmology tutor, Dr Juliette Hibou FGA, explains more about the origins and properties of this striking gem material. 

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What Makes A Gemstone Rare?

What Makes A Gemstone Rare?

The term 'rare' is thrown around alot online, but what gemstones actually deserve the term and do diamonds fall into this category at all? Gem-A tutor manager, Rona Bierrum FGA DGA, explores some of the rarest gemstones known to man and considers how rarity is measured in the gem and jewellery trade. 

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What is the Link Between an Emerald and the Emerald-Cut?

What is the Link Between an Emerald and the Emerald-Cut?

Sometimes, we come across terms in gemmology that cause confusion. We all recognise the beautiful green colour of an emerald, but there is also an emerald-cut that has nothing to do with the green gem itself… or does it? Here, we explain the story behind the twisted terminology.

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The Most Underappreciated Gemstone? Why We Love Rock Crystal

The Most Underappreciated Gemstone? Why We Love Rock Crystal

Everyone knows that lucky April-born souls have been blessed with one of the most prestigious birthstones: diamond. However, there is an alternative birthstone for the month and it's a 'hidden gem'... so to speak! Gem-A Member, Julia Griffith FGA DGA EG explains why rock crystal is worth your time and attention. 

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Birthstones Guide: Diamond for Those Born in April

Birthstones Guide: Diamond for Those Born in April

Those born in the month of April can count the illustrious and historically significant diamond as their birthstone. Here, Gem-A tutor Lily Faber FGA DGA EG delves into the past to uncover why diamonds are so valued... and so valuable. 

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Understanding Fossils as Decorative Materials

Understanding Fossils as Decorative Materials

Inspired by a fantastic specimen in the Gem-A Gemstone & Mineral Collection, tutor Pat Daly FGA DGA explores the use of fossils as decorative objects and describes some collectible specimens, like ammonites, trilobites and peanut wood.

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Beginner's Guide: What Are the Different Types of Opal?

Beginner's Guide: What Are the Different Types of Opal?

Are you fascinated by the beautiful colours of opal? Do you wish you knew more? Gem-A assistant gemmology tutor, Charlie Bexfield FGA EG presents his beginner's guide to opal types, including common and precious varieties. 

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Top 10 Luxury Brands: The Jewellery Connoisseur's Wish List

Top 10 Luxury Brands: The Jewellery Connoisseur's Wish List

Do you dream about a sparkling high jewellery collection from world-leading brands? Christa Van Eerde MA MLitt FGA DGA discovers the quintessential pieces from the top 10 houses leading the luxury jewellery sector.

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Bloodstone: The Alternative March Birthstone

Bloodstone: The Alternative March Birthstone

Perhaps because of its gothic colour palette and unusual history, bloodstone has long been considered the more 'traditional' choice for the month of March. Here, Gem-A gemmology tutor Lily Faber FGA EG delves into the properties of bloodstone, which is sometimes known as heliotrope or 'blood jasper'. 

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Birthstone Guide: Aquamarine for Those Born in March

Birthstone Guide: Aquamarine for Those Born in March

Those born in March are lucky enough to have two birthstones: the beautiful blue of aquamarine and the mysterious red-spotted bloodstone. Here, we delve into the gemmological and mystical properties of aquamarine and why this sky blue gem is said to be a talisman of good luck, fearlessness and protection. 

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Questions To Ask When Buying A Piece Of Gemstone Jewellery

Questions To Ask When Buying A Piece Of Gemstone Jewellery

What are the essential questions to ask a high street store or designer brand when buying a piece of gemstone jewellery? How can you be sure you'll get what you really want? Continue reading to see our checklist of essential conversation starters. 

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Understanding Dioptase

Understanding Dioptase

Did you think this might be emerald? You certainly wouldn't be the first to confuse the vibrant green of dioptase with the more recognisable, jewellery-lover's gemstone. Here, Gem-A assistant gemmology tutor, Dr Juliette Hibou FGA, explains more about the history, properties and origins of dioptase, an unusual collector's gem. 

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Beginner's Guide: What Factors Influence Sapphire Prices?

Beginner's Guide: What Factors Influence Sapphire Prices?

What makes Kashmir sapphires so special? What about the padparadscha? What role do treatments play in value? Here, Gem-A tutor, Beth West FGA DGA EG offers a beginner’s guide to sapphire value.

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The History and Mythology of Amethyst

The History and Mythology of Amethyst

For thousands of years, amethyst has served as a treasured talisman to ward off ills and represent royalty, wealth and status. Here, Gem-A delves into the unusual mythology and mysticism that surrounds this purple gemstone, which is enjoying its month in the spotlight as the February birthstone. 

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