May features a deep emerald, and June features alexandrite, a light purple stone. July is a deep red ruby, and August is a light green peridot. September is a radiant sapphire, and October is a ...

Chemically, it is almost identical to an emerald. What makes a stone one or the other is a handful ... under the blues and cyans of daylight, as a ruby does near firelight. Next, consider the ...

For instance, a ruby pendant against a deep ... their scarcity has made them one of the most prized gemstones in the world. Wearing such a rare stone, whether as a ring or brooch, is an ...