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 MarketUp A Valuation Sleeve
One obvious misdirection occurs when someone offers free appraisals that are really offers to buy. An offer to buy is not an appraisal.
The Appraiser's NotebookPurely Paraiba
“a gorgeous coffee table book introducing the new gem of gems, the spirited neon blue and green Paraiba Tourmaline.”
Book ReviewCobalt 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)