Justin K Prim

The History of London’s Lapidaries

by Justin K Prim

“I want to buy a cheap or used faceting machine”

The official guide.

How to Get Your Mind Blown by H.P. Lovecraft and Alan Moore in 7 Epic Steps

The Art and Joy of Recutting Gemstones

A Chinese translation of this article was originally published in Jewelry World Vol. 92…

A Colored Gemstone Buyers Guide to Cut Styles

Originally publish in the GAA Journal V27 No3 January-June 2020

Human Perception and the Color of Gemstones

Originall published in GAMMA The ICA | GemLab Journal — Volume 1 Issue 2

I Dream of Being a Gemcutter

How to make your professional dream a reality.

The Wave Decay Sonotorium

Constructing an Octophonic Sound Environment

A List of Current Faceting Machine Manufacturers

A Buyers Guide

Mast Style