Tag: Lauriane Lognay

A crash course on crystallography

August 24, 2023

The eight crystal systems cover all the precious and semi-precious stones used and known in the fields of jewellery, gemmology, and lapidary. Once you have memorized it, you will find it much easier to identify each mineral.

Glorious garnet shows off its nuance

August 18, 2023

Is there a group of gemstones more intriguing and complex than garnets? This gem represents such a significant part of our industry. With more than 20 categories, garnet is, indeed, a wonderous and diverse stone.

Hardness, tenacity, and stability: The gem world’s trio of durability

April 5, 2023

One rarely wonders if there is more to the hardness of gemstones beyond what is at face value. After all, once you have the Mohs scale down to a science, what other use could this knowledge bring to your business? We understand diamond is 10, corundum is 9, and the rest follow as easily as a fish downstream (or, I suppose, a pearl in an oyster).

The history of the lapidary historian

December 19, 2022

While the art of lapidary has existed for centuries, next to no one has gone as far and deep into research as Justin K. Prim.

Cutting differently: Inside the whimsical world of fantasy gems

September 28, 2022

When it comes to gemstone cuts, most are familiar with the classics—round brilliant, emerald, oval, princess, and so on—but what of fantasy cuts?

1 2 3 … 5 More Stories

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.

Necessary

Always Enabled

Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.

Cookie	Duration	Description
cookielawinfo-checkbox-advertisement	1 year	Set by the GDPR Cookie Consent plugin, this cookie is used to record the user consent for the cookies in the "Advertisement" category .
cookielawinfo-checkbox-analytics	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional	11 months	The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
CookieLawInfoConsent	1 year	Records the default button state of the corresponding category & the status of CCPA. It works only in coordination with the primary cookie.
viewed_cookie_policy	11 months	The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.

Functional

Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.

Cookie	Duration	Description
__cf_bm	30 minutes	This cookie, set by Cloudflare, is used to support Cloudflare Bot Management.

Performance

Analytics

Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.

Cookie	Duration	Description
__gads	1 year 24 days	The __gads cookie, set by Google, is stored under DoubleClick domain and tracks the number of times users see an advert, measures the success of the campaign and calculates its revenue. This cookie can only be read from the domain they are set on and will not track any data while browsing through other sites.
_ga	2 years	The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors.
_gat	1 minute	This cookie is installed by Google Universal Analytics to restrain request rate and thus limit the collection of data on high traffic sites.
_gat_UA-	1 minute	A variation of the _gat cookie set by Google Analytics and Google Tag Manager to allow website owners to track visitor behaviour and measure site performance. The pattern element in the name contains the unique identity number of the account or website it relates to.
_gid	1 day	Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously.

Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.

Cookie	Duration	Description
ADV_u_id	3 months 8 days	Unique customer identifier used to track unique ad views and interactions with some ads.
GoogleAdServingTest	session	Tracks ads seen by the visitor through Google Ad Manager.
IDE	1 year 24 days	Google DoubleClick IDE cookies are used to store information about how the user uses the website to present them with relevant ads and according to the user profile.
loc	never	AddThis sets this geolocation cookie to help understand the location of users who share the information.

Others

Tag: Lauriane Lognay

Gemstone depth: Cutting it close and critical

A crash course on crystallography

Glorious garnet shows off its nuance

Hardness, tenacity, and stability: The gem world’s trio of durability

The history of the lapidary historian

Cutting differently: Inside the whimsical world of fantasy gems

Popular Articles

Read the Latest Issue

Tag: Lauriane Lognay

Gemstone depth: Cutting it close and critical

A crash course on crystallography

Glorious garnet shows off its nuance

Hardness, tenacity, and stability: The gem world’s trio of durability

The history of the lapidary historian

Cutting differently: Inside the whimsical world of fantasy gems

Sign up for our newsletter

Popular Articles

Read the Latest Issue