Gemaura LLC

08/31/2026

The official results are in! There has been a new copper-bearing tourmaline find in southern Ethiopia. 💎

A new copper-bearing tourmaline find in southern Ethiopia has been creating buzz since late May. Gemologists at GIA and Gübelin Gem Lab separately investigated the new material to determine if it was, in fact, copper-bearing tourmaline.

GIA research scientists examined a parcel of over 100 rough and faceted samples and confirmed Ethiopia is producing significant quantities of high-quality paraíba tourmaline. Compared with Brazil, Mozambique and Nigeria, Ethiopian stones stand out for higher vanadium, gallium and lead—an element “signature” that supports confident origin identification in GIA Tourmaline Identification and Origin Reports.

Read more about this new paraíba source: https://bit.ly/4xpWB0Q

Gubelin Gemmology

Stones courtesy of the Ferreira Group

07/14/2026

The article linked to this post is a technical, but fascinating read on the cause of irridescence in "Iris Quartz." Other names for this material include "Rainbow Quartz," "Aurora Quartz," and "Anandalite." For years, the effect has been attributed to some sort of coating on the facets of the crystals. This 2017 study proves that theory to be incorrect.

06/26/2026

For those of you with June birthdays, here's some excellent information on one of your birthstones! Alexandrite! 🤩

06/19/2026

Unfortunately, this is not surprising, at all. 😒

The Swiss Gemmological Institute (SSEF) has encountered emeralds that have undergone filler treatments after they have been examined in labs, it cautioned.

Read more: Link below

06/11/2026

A silver bar from the famous Atocha shipwreck was found today! It has been 27 years since the last one was found. 😮

05/08/2026

11,000 carats?! Wow! 😮

State-run media​ reported that the newly found rough ruby was discovered in mid-April, just after the traditional New Year festival.

03/21/2026

This beautiful gemstone is aleady sold to a private client, but we had to show her off one more time, in honor of all the March babies out there! 🎉

02/11/2026

We can hardly wait to show you the beautiful crystals, gems and jewelry that we brought from the Tucson Gem Show! 🌵💎😍 Be sure to follow us and check back often, to see upcoming announcements about our website restocks!

12/23/2025

Only "rock people" are going to understand this one. 😅