Lab-Grown Diamond Screening
A laboratory-grown diamond, commonly referred to as "laboratory-created," "synthetic," "man-made," or simply "lab-grown," is a diamond that appears optically identical to natural diamonds.
*Free Featured ArticlesLab-Grown Diamond Update
Lab-grown diamonds are the focus of the industry and at Gemworld, we continue to get questions on all aspects from identification to pricing.
Featured ArticlesMarket Uncertainty Fuels Caution
Summer slowdowns and declining prices are the state of the industry. Inventories are robust and the sanctions on Alrosa do not seem to be impacting supplies. Only melee is in short supply.
Diamond MarketColored Stone Market
During the past two years, gem dealers have, for the most part, been on the positive side of an unprecedented pandemic-influenced market cycle.
Colored Stone MarketCobalt Spinel
Vivid cobalt spinels are particularly rare and more expensive than the other blue spinels. Recently, a new source outside Mahenge in Tanzania has excited the gem trade.
Market TrendsGem Focus August 2022: Rhodochrosite; a rose-colored ornamental gem rarely seen in transparent form…
Rhodochrosite is a manganese carbonate mineral (MnCO3) with low hardness of 4 and three directional perfect cleavage. The structure is very similar to calcite since it is a calcite group mineral with remarkable coloration thanks to manganese.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus July 2022: Andalusite; warm contrasting greens and reds in one gem…
Gemstones are arguably the most aesthetic representatives of minerals in nature. Common understanding of a gem’s beauty is attributed to its color and transparency. However, there are other mineralogical properties that might make a gemstone attractive, even unusual.
*Gem Focus & Market Pulse (Free Subscriber)Treatments Applied to Garnet and Spinel
Spinel and garnet are one of the last holdouts in the modern-day growth of gemstone treatments. Besides fracture filling, these two groups of gems typically do not benefit from any standard processes of gemstone enhancement…
Featured ArticlesLab-Grown Diamond Market Report
Lab-grown was the talk of Vegas, with more booths than ever. This sector keeps growing in bridal but as more companies come in, will there be an oversupply? Prices continue to decrease, now with discounts in the 85-95% range from natural.
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