Mandala Rings with a Twist “Guilloché Gems” can be used with our transparent gems, citrine, amethyst, and blue topaz. The “Guilloché Gems” are a process I started integrating with my work some years ago when I fell head over heels for guilloché engraving. I have devised a way to now offer them available as anContinue reading “Guilloché Gems”