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

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...

Diamond International Bank

Diamond International Bank was established in 1955 and it is specialized on the diamond investment The bank works on diamond industry starting of extraction the diamond from the mines to diamond distribution throughout the world, and it is licensed by the Central Bank...

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

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 ×...

The Unexpected Origins of Big Diamonds

Dr. Evan Smith, Ph.D., GIA research scientist, has dedicated his work to methodically characterizing the inclusions found in rare diamonds. In this video presentation recorded at the 2017 JCK Las Vegas show, Smith shares his findings on the...