Mark Hileman, jewelry designer specializing in Australian opal inlay jewelry.
Australian opal rings with a variety of colored gemstone accents set in 14k gold.

Women's Australian opal rings with topaz, rubies, white sapphire and amethyst gemstone accents by Mark Hileman.

Did You Know?

We also produce a sterling silver jewelry line featuring unique inlay materials such as dinosaur bone, turquoise, sugilite and other colorful stones inlaid in silver, gold and stainless steel!


Mark Hileman graduated from Texas Tech University with a degree in Architecture.  While in college Mark experimented with sculpting and painting and soon was selling his artwork to help pay his tuition.  In 1974 Mark opened his architectural office in Scottsdale, Arizona and that same year began making jewelry. The sculptural shapes and use of vibrant inlay color in his opal jewelry designs are an expansion and blending of his diverse artistic backgrounds.

Over the last 40 years Mark has inlaid every material imaginable in his jewelry designs. However, for many years his inlay material of choice for his inlay jewelry has been Australian opal. Mark has established lasting relationships with the elite of Australia’s opal miners and dealers to ensure that he continues to obtain the finest opal available for his exquisite Australian opal jewelry.

“There is no other material that I know of that is as exciting to work with as Australian opal. Its variations of light, pattern and color are endless. To take what once belonged to the earth and give it new life in my jewelry creations is very gratifying."




Mark Hileman started using Australian opal in his jewelry in the early 1980's and was a pioneer in Australian opal inlay jewelry in the United States.  Combining outstanding Australian opal with other colorful gemstones gives Hileman Australian opal rings and opal jewelry a unique, bold and colorful look.  Hileman opal jewelry is easily recognized by its impeccable craftsmanship, precisely fit inlay and, of course, its incredible Australian opal.  You will often find the Australian opal in our opal engagement rings, pendants, bracelets and earrings accented by gemstones such as diamonds, sapphires, rubies and topaz set in 14 karat gold.  Each piece of Hileman opal jewelry is handcrafted by the Mark and John Hileman in our Arizona jewelry studio. Mark's son John has been involved in creating  jewelry for the last 25 years making for a very experienced and knowledgeable team.   Hileman opal jewelry is available in upscale jewelry stores and galleries across the US as well as online at and   

(623) 518-6588

Hileman Opal Jewelry