Veninga's Fine Jewelry

10/19/2022

Beautiful Anhydrite!

Location: Switzerland

Geology Love

10/19/2022

Beautiful Galena and Pyrite!

Location: Peru

Geology Love

09/26/2022

Stunning Tanzanite!

Location: Tanzania

Geology Love

09/14/2022

Stunning Tourmaline!

Location: Afghanistan

Geology Love

07/17/2022

07/17/2022

Take a look at this cymophane chrysoberyl with a crisp cat’s eye 😺

Chatoyancy occurs when a band of light is reflected from a series of thin inclusions which are parallel to each other (these may be hollow tubes or needle-like crystals of, for example, rutile or haematite).

To display this effect, there must be enough fibres oriented in parallel to the base of the stone. The gemstone also must be cut as a cabochon to provide the necessary rounded surface for the line of light to be seen.

Read more in this great beginner’s article, here: https://gem-a.com/gem-hub/gem-knowledge/understanding-the-cats-eye-effect-in-gemstones

07/17/2022

07/17/2022

Diamonds of the highest caliber were once known as "diamonds of the first water." This limpid, brilliant 101.73 carat diamond no doubt belongs to that category. Graded D color, Flawless clarity by GIA, it was also classified as type IIa, a designation that means it is the most chemically pure and optically transparent type of diamond. Type IIa diamonds account for less than 2% of the world’s diamond production. A diamond of this size and quality is truly the rarest of the rare.

At GIA, we grade some of the most precious diamonds in the world, including yours. Learn more: gia.edu/diamondexpert

Courtesy: FABRICE COFFRINI/AFP via Getty Images

02/28/2022