GEMISPHERE - Key Persons


Jillianne Stevens

Job Titles:
  • Member of the Gemisphere Team
  • Shipping Lead and Stringer
Jillianne grew up on the Navajo reservation near the Grand Canyon and Sedona, Arizona. A lifelong rock hound, she earned a BFA in Digital Design from Stephens College while minoring in ceramic art. She now lives in Portland with her husband and two pups. In her spare time, she enjoys ceramic sculpture, jewelry making, embroidery, and travelling the world.

Katherine Hall

Job Titles:
  • Member of the Gemisphere Team
  • Senior Editor
Katherine has helped oversee the development of Gemisphere's educational and marketing publications since the company's founding in 1988. She brings over 25 years of experience in information design, writing, editing, and project management to the creation and production of Gemisphere's books, websites, education programs, and promotional material. She has a degree in Literature and has ghostwritten a New York Times bestselling book. Katherine remembers the day at nine years old when she held an Amethyst in her hand and knew there was much more to gemstones than meets the eye. She has loved gemstones and their healing magic ever since.

Kim Jones

Job Titles:
  • Member of the Gemisphere Team
  • Lead Stringer
Originally from the Southwest, Kim now resides in the Northwest with her two huskies. When not sorting and stringing gemstones at Gemisphere, she can be found along the river searching for rocks, animal bones, and other treasures. Her favorite gemstones are Labradorite, Moonstone, and Opalight.

Madeline Partridge

Job Titles:
  • Member of the Gemisphere Team
  • Senior Gemstone Advisor
Born and raised in Portland, Madeline has been with Gemisphere since 2016. With an education in chemistry, Madeline was drawn to the idea of therapeutic gemstones and their energies. A lifelong rock hound, she feels blessed to be part of a community that has a deep interest in the high quality of the gems worn. Her favorite gemstone to wear and work with is Carnelian. When not working, Madeline can be found playing French horn or taking part in the ancient Irish sport of camogie.

Michael Katz - Founder

Job Titles:
  • Founder
  • Member of the Gemisphere Team
Michael Katz founded Gemisphere in 1988. The author of several books on the therapeutic uses of gems, he is recognized by his thousands of readers as the world's leading authority on gemstone energy medicine. He has dedicated his life to promoting greater awareness of the healing and transformational benefits of therapeutic quality gemstones. He lives in Portland, Oregon.

Michelle Smith

Job Titles:
  • Member of the Gemisphere Team
  • Inventory Manager
Originally from Nevada, Michelle moved to Portland in the summer of 2000 and completed her undergraduate degree in Art History from Portland State University. She has always been a bit of a rock hound and has collected minerals and rocks since childhood. Having always felt drawn to healing energies from nature, she was intrigued to discover Gemisphere and honored to be brought on as a Gemstone Advisor in 2010. It is her pleasure to help people on their healing journey with the gems, and she is grateful to be a part of the Gemisphere community.

Naomi Seraphina

Job Titles:
  • Member of the Gemisphere Team
  • Repairs Specialist
Naomi has an extensive background in the creative arts, including fine art, illustration, prose, poetry, clothing and costume design, theatrical makeup, circus, dance, and many other pursuits and interests. She loves creating beautiful things with her hands and is a lifelong resident of Cascadia.

Nathan Swagerty

Job Titles:
  • Member of the Gemisphere Team
  • Gemstone Advisor
Nathan is Portland-born and -raised. An artist, avid believer in alternative healing, and a rock hound from youth, he is happy now to be part of a larger community that shares his passions. Married to his high-school sweetheart, a dog dad to a half-beagle half-Lab, he enjoys creating, collecting records, and making connections with new people. Nathan spent time in England apprenticing for an Art Therapy group and continues his quest to find a variety of ways to better the body and mind.

White Coral

White Coral works to purify all levels of your being. It protects the core of your physical, emotional, and mental levels by deflecting negative and harmful influences from them. It protects this core, not only from your own negative thoughts and emotions, but also from those of others. In Angelfire, the eleven sets of eleven White Coral spheres focus these purifying effects on your intuitive aspect. The single White Coral that lies between each set of Sapphires represents the one, true Self that lies beyond even the subtlest aspect of your mind. Thus, the alternating sets of eleven and one also focus on the relationship between your intuition and your highest Self. Together, the Coral and Sapphire help correct any faults in this relationship. By ensuring that this link remains clear and pure, Angelfire opens your intuition to your source of wisdom and guidance within.