Hauyne
There has never been commercial production of this rare member of the sodalite group, celebrated for its striking blue color.
Gem NotesGemstone Cosmetics
Gemstones that are naturally beautiful may need some cosmetics, called enhancements, to embellish them. Regardless of the amount, disclosure is key.
The Appraiser's NotebookArgyle Pink Diamonds
The natural colored diamond market remains strong and steady, and closure of Rio Tinto’s Argyle diamond mine in Australia sealed the rarity of Argyle pinks.
Market TrendsTakeaways & Quotes from the 2023 AGA Tucson Conference
GemGuide shares insights from the speaker presentations at the annual event.
The Trade in FocusGem Focus – February 2023 – Featuring Padparadscha: The most delicately colored corundum variety
Among “fancy sapphires,” padparadscha, the delicate pure pink-orange variety, is the most popular and arguably the rarest.
*Gem Focus & Market Pulse (Free Subscriber)Tucson 2023 Predictions: Buying, Trends, and Pricing
Ahead of the annual gem shows, five dealers talk about their expectations for selling, the stones and colors they think will be popular, and more.
The Trade in FocusGem Focus – January 2023 – Featuring Fire Opal: A gem of flames
This variety of opal can be found both with or without play of color, and the body color ranges from light yellow to deep reds and oranges.
*Gem Focus & Market Pulse (Free Subscriber)The Rare, the Unusual, and the Obscure…
The basic definition of a gemstone is a material that is beautiful, durable, and rare. Each feature has a broad meaning, and all are debatable.
Featured ArticlesA Discussion and Identification of Beryllium Diffused Sapphires
Reports published on the internet caused a worldwide controversy for corundum treatments, which ranged from simple heat treatment to high-heat aided treatments such as beryllium diffusion in the past two decades. Lack of understanding of…
Featured ArticlesThe Market is Still Robust— in a Year of Falling Skies
While diamond prices are soft, the overall market is healthy. Luxury brands have had a strong year in 2022. Origin tracking of diamonds will become more prevalent in 2023 and the future will bring much more transparency authenticating natural and conflict free.
Diamond Market