AuAlchemy Jewelry Guide

Assorted fine jewelry pieces in 14K yellow gold including rings, necklaces, and pendants arranged on white marble

What Is 14K Gold? A Gemologist Explains the Kar...

In the summer of 1252, the Republic of Florence struck the first gold florin — a coin of such precise purity that it would anchor European commerce for three centuries....

What Is 14K Gold? A Gemologist Explains the Kar...

In the summer of 1252, the Republic of Florence struck the first gold florin — a coin of such precise purity that it would anchor European commerce for three centuries....

The Hamsa Hand: Meaning, History & How to Wear It

The Hamsa Hand: Meaning, History & How to Wear It

In the sacred precinct of ancient Carthage — the tophet where Phoenician priests conducted rites to the goddess Tanit — archaeologists have recovered more than 6,000 stone stelae bearing a...

The Hamsa Hand: Meaning, History & How to Wear It

In the sacred precinct of ancient Carthage — the tophet where Phoenician priests conducted rites to the goddess Tanit — archaeologists have recovered more than 6,000 stone stelae bearing a...

Faceted aquamarine gemstone showing the pure sea-blue color that gives the stone its name — aqua marina, water of the sea

The Complete Guide to Aquamarine: March's Birth...

Most people born in March know one birthstone: aquamarine. Few know there is a second — bloodstone — that was considered the primary March birthstone for over 1,800 years before...

The Complete Guide to Aquamarine: March's Birth...

Most people born in March know one birthstone: aquamarine. Few know there is a second — bloodstone — that was considered the primary March birthstone for over 1,800 years before...

The eight phases of the moon cycle — from new moon to full moon — photographed against a dark night sky

Moon Phases: The Astronomy, Mythology, and Mean...

On the night of July 20, 1969, astronaut Buzz Aldrin looked up from the lunar surface at a crescent Earth hanging in the black sky above him. It was the...

Moon Phases: The Astronomy, Mythology, and Mean...

On the night of July 20, 1969, astronaut Buzz Aldrin looked up from the lunar surface at a crescent Earth hanging in the black sky above him. It was the...

Traditional Turkish nazar boncuk — hand-blown cobalt glass evil eye amulets used for centuries of apotropaic protection

The Evil Eye: 5,000 Years of Humanity's Oldest ...

In 1937, British archaeologist Max Mallowan was excavating the ancient city of Tell Brak in northeastern Syria when he uncovered something extraordinary: thousands of small limestone figurines, no taller than...

The Evil Eye: 5,000 Years of Humanity's Oldest ...

In 1937, British archaeologist Max Mallowan was excavating the ancient city of Tell Brak in northeastern Syria when he uncovered something extraordinary: thousands of small limestone figurines, no taller than...

Natural aquamarine crystal specimen — blue beryl, Be₃Al₂Si₆O₁₈ — from Minas Gerais, Brazil

The Complete Guide to Aquamarine: March's Birth...

At 14 inches tall and weighing 10,363 carats — just over four and a half pounds — the Dom Pedro Aquamarine in the Janet Annenberg Hooker Hall of Geology, Gems,...

The Complete Guide to Aquamarine: March's Birth...

At 14 inches tall and weighing 10,363 carats — just over four and a half pounds — the Dom Pedro Aquamarine in the Janet Annenberg Hooker Hall of Geology, Gems,...