Skip to main content

Ask A Gemologist - Eunice R. Miles

Today’s question is about diamond treatments, fillers, diamond look-alikes and making a difference. Before we begin, let me emphasize the obvious: During general observation, always check for coated diamonds first!

Fooled you - this segment is about reminding our readers how women continue to make a difference in the jewelry industry. Recently during the Las Vegas show a question came up about Eunice Miles. My first thought, that would be a great segment for Ask A Gemologist.

Eunice R. Miles, G.G., 1917 - 1997, was the first female gemologist/researcher in the GIA Laboratory. Her GIA career began in 1953. She made history by becoming the first woman to join then GIA’s Gem Trade Laboratory, in New York. In 1963 she did it again when Gems and Gemology (Winter 1962–63, Vol. 10, No. 12, pp. 355–364, 383) published her article Diamond-Coating Techniques and Methods of Detection.

In 1963, she was acknowledged in the U.S. Department of Mines annual report for advancing diamond research with her two-year investigation into detecting coated diamonds. Later, the FBI used her data to arrest a major coated-diamond dealer.

In her words, the article’s objective was “to present for the first time in print a discussion of the practice of raising the color grade of certain diamonds to near-colorless by disguising the true light-yellow or brown body color by the application of a foreign substance to the surface of the stone.”

Eunice’s commendations demonstrate her professional diversify as a gemologist, designer, educator, and writer. In 1984 Eunice was elected an honorary fellow of the Gemmological Association of Great Britain, now Gem-A. In 1985 she became an honorary member of the American Gem Trade Association (AGTA). In 1985 the International Society of Appraisers (ISA) presented Eunice with its “Gems and Jewelry Industry Service Award,” and in 1986 GIA named Eunice as the first recipient of the “Eunice Miles Lifetime Achievement in Gemology” award.

In 1987 the Women’s Jewelry Association inducted Eunice Miles into its Hall of Fame.

The Manhattan Chapter of the GIA Alumni Association honored Eunice in 1988. Under the leadership of Gail Brett Levine, of the National Association of Jewelry Appraisers (NAJA), the Eunice Miles Scholarship Fund was founded. Each year the Chapter contributes to the fund to assist students attending GIA to further their educational endeavors.

So . . . let’s take a moment and look around our industry today. Who are the women you know making a difference? Maybe it’s you! Have you considered what your legacy will be? Don’t worry, you don’t need to focus on your legacy just do what Eunice Miles did, give it your best every day, love what you do, and continue to share your enthusiasm for life. The rest will take care of it’s self, it’s inevitable.

You too may be making history right now!

(This post appeared in Fall 2014 edition, WJA News San Diego)

Comments

Most Popular of All Time

That Fateful Four-Letter Word

In this episode, A Masterclass in Efficiency. For nearly four months, the western border of our property has stood as a living monument to determination, dubious planning, and forensic-level lumber acquisition. Since February, our neighbor Steve has been conducting what can only be described as a masterclass in deliberate calculation. This was never going to be one of those slick home-improvement shows where a cheerful pair of men installs a fence between commercial breaks, sipping lemonade. No. This was real life in retirement. We scaled the vertical wilderness of our hillside. We mixed concrete with the precision of medieval alchemists. We bled, we sweated, and we fought hand-to-hand with a buried tree stump that had the structural integrity of a Cold War bunker. By this week—May 16th, for those keeping score—the glorious end was finally within reach. The fence stood proudly, the line was straight, and victory practically hummed in the air. Only one major task remained: installing t...

Truth for Sale

This episode is inspired  by Elton John & Bernie Taupin On Memorial Day, I took my first bike ride  since the accident , seeking proof that my legs, lungs, and nerves still remembered the road. The morning air carried that familiar Southern California mix of ocean haze, exhaust, eucalyptus, and sun-baked asphalt. My tires hummed across pavement I’ve ridden for years. Somewhere between the steady click of the chain and the rhythm of my breathing, Elton John and Bernie Taupin’s The Captain and the Kid found its way into my ears. There’s a strange kind of magic when the cadence of a ride syncs perfectly with a song you know by heart. Suddenly, the music and lyrics stop being background noise and become a lens. And through that lens, the road started talking. I've been cycling on this road some, Can't help feeling I've been showing my friends around. I've seen it grow from next to nothing, To a giant eatin’ up our town. Called up the tealeaves and the tarots, Asked the...

When Nature Comes to You

Sometimes the best way to experience the world isn’t to go searching for it, but to sit still and let it come to you. Lately, the view from my reading chair has become a vibrant little stage. Our backyard feeder has drawn a steady parade of wildlife—bold flashes of blue from the Western Scrub Jays, brilliant bursts of color from the Hooded Orioles, and Purple Finches—transforming quiet afternoons into a chorus of motion and song. But the most captivating performance unfolds just inches beyond my window. For the past couple of weeks, a young hummingbird mother has been perched on her tiny, beautifully woven nest. Hummingbirds usually seem made of pure nervous energy, yet here she is: perfectly still, patient, and devoted. Watching her quiet vigil - day after day - has felt almost magical. Life seems to be blooming in every direction right now, renewing itself in real time. It’s a gentle reminder to slow down, look outside, and notice the quiet miracles surrounding us. John Muir once wro...

A Mother’s Day Reflection

With Mother’s Day here and the world bustling with cards, brunches, and busy schedules, I find myself reflecting on something a bit simpler: taking a moment to remember the person who helped shape my earliest sense of home. Mauricette Elaine (Bontemps) Ball. My Mom. We arrived in Cuba after leaving La Rochelle, France, in 1959—a transition whose enormity I only fully appreciate now. My mother, barely in her mid-twenties, stepped into Midwestern life with remarkable courage. Her smile could warm the coldest Illinois morning, and her hugs lingered long after she let go—quiet reminders that you were deeply loved. Born February 16, 1934, the third of four children, she grew up in Nazi-occupied La Rochelle. As kids, we listened wide-eyed to stories of soldiers patrolling her streets and fear shadowing everyday life. Yet she carried none of that darkness forward. What endured was resilience and an unwavering devotion to family—qualities she carried across the Atlantic and planted firmly in C...