Diamond Journey

Diamond Journey

  Few people outside the gem industry realize the true nature of a gemstone’s journey from the mine to the counter of a store. Whether the gem is being offered to consumer’s at a traditional jewelry store’s counter, an internet shopping site, or a television broadcast...
Centuries of Opulence:  Jewels of India

Centuries of Opulence: Jewels of India

Large flawless diamonds from the Golconda region. Rich green emeralds from Colombia. Blood-red rubies from Burma. Only the most visually striking would do, set in the purest gold. For more than 5,000 years, jewelry has played an integral role in the history of India....
Diamond with Unusual Fluorescence Distribution

Diamond with Unusual Fluorescence Distribution

The New York lab recently encountered a round brilliant diamond, weighing just over 2 ct, that displayed little if any reaction to long-wave UV except for a small spot confined to the area around the culet (figure 1, left). This small area appeared to have medium...
Chlorapatite in Quartz

Chlorapatite in Quartz

We recently examined a 57.56 ct rock crystal quartz (figure 1) that came from Luciana Barbosa (Gemological Center, Asheville, North Carolina). Said to be from Bahia, Brazil, the transparent and colorless rectangular step-cut gem measured 31.91 × 19.01 × 11.83 mm and...