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Granulated Etruscan earring, 4th century B.C. Granulation is a jewellery manufacturing technique whereby a surface is covered in spherules or granules of precious metal. The technique is thought to have its origins in Sumer about 5,000 years ago.
In 2015, the auction house Bonhams sold the 50.13-carat Hope Spinel for a world-record £962,500 ($1.22m) — over six times its estimate — helping to catapult the stone into public consciousness.
In the first three months of 2024, 13.5% of diamond jewelry items sold in the U.S. were made with lab-grown stones, according to Edahn Golan, a diamond industry analyst.
Shane Co. offers several generous policies that make it one of the best places to shop for jewelry online. It offers free express shipping and 60-day returns, as well as free jewelry cleaning and ...
Stones cut as smooth, dome-shaped stones called cabochons or simply cab. These have been a popular shape since ancient time and is more durable than faceted gems. [34] Stones which are cut with a faceting machine by polishing small flat windows called facets at regular intervals at exact angles. [34]
Ammolite is also known as aapoak (Kainah for "small, crawling stone"), gem ammonite, calcentine, and korite. The latter is a trade name given to the gemstone by the Alberta-based mining company Korite. Marcel Charbonneau and his business partner Mike Berisoff were the first to create commercial doublets of the gem in 1967. They went on to form ...