The use of silicon carbide (synthetic moissanite) led to the development of electrical conductivity testers of similar appearance, but which worked on different physical properties—electrical rather than thermal.
Featured ArticlesThe bangle is the most popular jade jewel, but it is also the most complex to select. Next to all quality parameters, personal preferences, and budget, choosing the right size is of utmost importance. And when it comes to green and purple jadeite, perfect bangles are, as one would say, unheard of. Table 1 shows approximate retail values that currently apply for inferior to exceptional quality jade.
Featured ArticlesShortages of rough and increased consumer demand are driving monthly price increases. Predictions of a slowdown in spring did not happen. Inventories at very low levels.
Diamond MarketAs the holiday season approaches, one of the stories in the colored stone market continues to be the difficulty that dealers are having sourcing new stock.
Colored Stone MarketOne-step testing is a tempting proposition; however, it requires extensive knowledge and experience to perform the minimum number of tests required for accurate and conclusive identification.
Gem TestingPeach garnets became quite popular in the last a few years; the most desirable stones will have a bright, medium light orangy pink color.
Market TrendsCoral, especially the red to pink type, has been used as an ornamental gemstone both in jewelry and intricate carvings. Strangely, the word “coral” does not have an established taxonomic meaning but is instead broadly used to define for any organism that grew attached to the sea floor.
*Gem Focus & Market Pulse (Free Subscriber)The color of the year announcement by Pantone is an exciting concept for gem professionals. What gemstones can be matched with these colors? How popular would they be? The colors of 2021 “Illuminating” and “Ultimate Gray” create a jewelry-friendly combination.
*Gem Focus & Market Pulse (Free Subscriber)