Blog — gia
The Blue Moon Diamond
Peter Lopez carat clarity color custom jewelry cut diamonds gems gia historical jewelry jewelry the 4cs The Blue Moon Diamond The World's most Famous Diamonds
The Blue Moon of Josephine is a 12.03 carat (2.406 g) blue diamond, described as flawless by experts, that was...
How to read GIA Diamond Grading Reports
Peter Lopez clarity color cut diamonds gia the 4cs
Here is a link to a video by GIA explaining how to read their reports: //players.brightcove.net/1799386198001/default_default/index.html?videoId=2976926381001
The History of the Diamond
Peter Lopez blog carat clarity color custom jewelry custom jewelry design cut diamonds facets gems gia historical jewelry jewelry marquise pear round royalty the 4cs
DIAMONDS
Early history
Prior to the discovery of diamonds in Brazil in the 1700s, India was the only place where diamonds were mined. Early references to diamonds in India come from
The Emerald - Cleopatra's Favorite
Peter Lopez blog carat clarity color custom jewelry cut emerald facets gem gems gia jewelry the 4cs
Emerald is a gemstone and a variety of the mineral beryl colored green by trace amounts of chromium and sometimes vanadium. Most emeralds are highly included, so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate. The word "emerald" is derived (via Old French: esmeraude and Middle English: emeraude), from Vulgar Latin: esmaralda/esmaraldus, a variant of Latin smaragdus, which originated in Ancient Greek: (smaragdos; "green gem") Hardness of 7.5–8 on the Mohs scale Emeralds, like all colored gemstones, are graded using four basic parameters–the four Cs of connoisseurship: color, clarity, cut and carat weight. Before...