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Vintage Gemstone Jewelry: How to Evaluate, Restore, and Fall in Love with a Piece of the Past
There's something magical about vintage gemstone jewelry. It carries history. It tells a story. And if you know what to look for, it can be a remarkable value—and a genuine investment—in ways that new jewelry often isn't. But vintage jewelry also comes with questions. How do you know if what you're buying is authentic? What's the difference between vintage and antique? How do you care for a piece that's been passed down through decades (or centuries)? And when does a vintage
Robert Michael Gems
18 hours ago5 min read


Investing in Gemstones: What You Need to Know Before Buying Gems as a Financial Asset
You've probably heard someone say it: "Diamonds are an investment." Or maybe you've wondered whether that emerald you're eyeing might actually appreciate in value over time. The truth about gemstone investment is more complicated—and more interesting—than marketing slogans suggest. The real question isn't whether gemstones can hold value. It's whether you're buying the right stones, for the right reasons, at the right time. And whether gemstone investment actually makes sense
Robert Michael Gems
6 days ago5 min read


Moissanite vs Diamond: The Complete Guide to Understanding the Difference (and Choosing What's Right for You)
Moissanite vs Diamond: The Complete Guide to Understanding the Difference (and Choosing What's Right for You) If you've started looking at engagement rings or fine jewelry in the last few years, you've probably encountered moissanite. And if you haven't already wondered whether it's a real diamond alternative—or just a clever substitute—you're about to. The truth? The moissanite vs diamond conversation isn't as simple as "real" versus "fake." It's more nuanced than that, and
Robert Michael Gems
Jul 95 min read


The Sapphire Engagement Ring: Why More Couples Are Choosing Color Over Convention
There's a moment that happens to a lot of people the first time they hold a sapphire engagement ring under good light. The stone comes alive — deep and saturated, with a velvet richness that a white diamond doesn't quite replicate. And then comes the question: why didn't we consider this sooner? Sapphires have been the stone of royalty, the stone of devotion, the stone of collectors who know what they're looking at. What they haven't always been, at least in mainstream jewelr
Robert Michael Gems
Jun 306 min read


How to Clean Gemstone Jewelry at Home (Without Accidentally Ruining It)
There's a question that comes up at some point for nearly every jewelry owner, and it usually arrives the moment a beloved ring catches the light at the wrong angle and looks… not quite like it used to. How do you clean gemstone jewelry properly? Not just a quick rinse under the tap, but a real clean that restores the brilliance you fell in love with — without risking the stone, the setting, or the finish of the metal? The answer is more nuanced than most advice on the intern
Robert Michael Gems
Jun 248 min read


The Gemstone Hardness Scale: What It Actually Means and Why It Should Change What You Buy
If you've ever fallen in love with a stone at a jewelry counter and then hesitated — wondering if it would hold up, whether it would scratch, whether daily wear would dull its surface over time — you were already thinking about the gemstone hardness scale, even if you didn't know it by name. It's one of those pieces of knowledge that sounds technical until you understand what it actually tells you, and then it becomes indispensable. Every stone has a place on that scale. Unde
Robert Michael Gems
Jun 177 min read


Rhodochrosite Gemstone: Colorado's Most Stunning Stone and How to Wear It
If you've never encountered a rhodochrosite gemstone in person, the first time tends to stop you cold. There's nothing quite like it — a deep rose-red that pulses with translucent warmth, banded in cream and ivory, looking less like something pulled from the ground and more like something painted by hand. Colorado's official state mineral, rhodochrosite has spent decades quietly captivating collectors and jewelers who know where to look. Now, with renewed interest in rare col
Robert Michael Gems
Jun 96 min read


How to Read a Diamond Cut Guide — and Why It Changes Everything About What You Buy
Most diamond buyers spend the majority of their time thinking about size. Carat weight is visible, easily communicated, and easy to compare on a spreadsheet. What gets far less attention — and matters far more — is cut. A diamond cut guide isn't just a chart on a gemology website. It's the single most useful framework for understanding why one stone can outshine another that's twice its size, and why two diamonds with the same grade on paper can look dramatically different in
Robert Michael Gems
Jun 26 min read


Lab Grown Diamonds: What They Actually Are, and How to Decide If One Is Right for You
Lab Grown Diamonds: What They Actually Are, and How to Decide If One Is Right for You The jewelry industry has not seen a disruption quite like lab-grown diamonds in a very long time. In the span of a decade, what was once a niche scientific curiosity has become a mainstream choice for engagement rings, fine jewelry, and even investment pieces — with price points that have dropped dramatically and quality that is, in many cases, indistinguishable from mined diamonds without s
Robert Michael Gems
May 286 min read


Fancy Colored Diamonds: What They Are, Why They're Rare, and How to Buy One Wisely
Most people can picture a white diamond without thinking twice. Round, brilliant, sparkling in platinum — it's the version that dominates jewelry counters and engagement ring ads around the world. But there is another category of diamond that most buyers never seriously consider, and it's arguably more interesting: fancy colored diamonds. Pink, blue, yellow, green, orange, red — colors that shouldn't exist in a mineral defined by carbon purity, but do, because of specific ato
Robert Michael Gems
May 205 min read


A Birthstone Guide by Month — The Real Story Behind Each Stone
As we embark on our journey through the fascinating world of birthstones, each month brings with it a unique gem that carries its own history, symbolism, and significance. The tradition of associating specific stones with each month has deep roots, often intertwined with cultural beliefs and practices. In this guide, we will explore the captivating stories behind each birthstone, starting with the vibrant garnet, the stone that represents those born in January. Known for its
Robert Michael Gems
May 135 min read


Handcrafted Gemstone Jewelry: From the Earth to the Jeweler's Bench
There is something deeply compelling about a piece of handcrafted gemstone jewelry. Unlike mass-produced accessories stamped out by the thousands in overseas factories, a handcrafted piece carries a story — one that begins deep underground, moves through the hands of miners and gem cutters, and ends at a jeweler's bench where patience and artistry transform raw beauty into something wearable and lasting. Understanding that journey doesn't just make you a more informed buyer;
Robert Michael Gems
May 65 min read


The Complete Guide to Choosing Custom Engagement Ring Gemstones
Most people planning a custom engagement ring start with a shape. Round, oval, cushion. They think about the setting — solitaire, halo, three-stone. What they rarely think about first is the gemstone itself: what it is, where it came from, and what it actually means to choose one stone over another. That's where most custom engagement ring decisions go sideways. This guide is designed to fix that. Why Choose a Colored Gemstone for Your Engagement Ring? The dominance of the di
Robert Michael Gems
Apr 284 min read


Natural vs Treated Gemstones: What Every Buyer Needs to Know Before They Purchase
Most people assume the gemstone in the jewelry they're buying is natural. Most of the time, they're wrong — and the jeweler never volunteered that information. The gemstone market is flooded with treated, enhanced, and lab-created stones that look identical to natural specimens. Knowing the difference between natural vs treated gemstones isn't just academic — it directly affects what you're paying for, what you own, and what it's worth. What "Natural" Actually Means in the Ge
Robert Michael Gems
Apr 175 min read


Colorado Aquamarine Jewelry: Why the State Gemstone Makes the Most Meaningful Piece You'll Ever Own
Mt. Antero Colorado has been designated the Centennial State, the Colorful State, the Mountain State — but for gem enthusiasts and jewelry lovers, there's another designation that matters more than any of them. Colorado is home to Aquamarine — the official State Gemstone, and one of the most coveted blue gemstones in the world. But not all aquamarine is the same. And Colorado aquamarine jewelry — set with stones actually mined from the high peaks of this state — is in a categ
Robert Michael Gems
Mar 34 min read


Colorado Minerals and Gemstones
Colorado contains an abundance of mineral resources. According to Mindat.org , 906 distinct minerals have been identified in Colorado, making it one of the most mineralogically diverse States in the U.S.. Over 40 mineral species were first discovered in Colorado, with numerous varieties and sub-species. The State is known for 30 varieties of minerals commonly used to cut gemstones, both faceted and cabochons, including Diamond, Aquamarine (the State Gemstone), Rhodochrosite (

Robert Michael
Jan 272 min read


The Allure of Colorado’s Rhodochrosite in Gemstone Jewelry
Colorado’s Rhodochrosite stands out as one of the most captivating minerals used in gemstone jewelry. Its rich pink to red hues makes it a favorite among collectors and designers alike. This gemstone offers more than just beauty; it carries a story of geological wonder and artistic potential that continues to inspire jewelry makers around the world. Rhodochrosite, yellow pyrite, white quartz and purple fluorite specimen from the Sweet Home Mine. What Makes Colorado Rhodochros

Robert Michael
Jan 123 min read


Gemstones – Shades of Blue
When most people think about a blue gemstone, Sapphire is usually the first gemstone to come to mind, but there are a large number of...

Robert Michael
Jul 1, 20233 min read


Difference Between Topaz and Quartz
What’s The Difference Between Topaz and Quartz When I cut white Quartz and white Topaz, they look identical. In fact, when both are...

Robert Michael
Jun 14, 20234 min read


A Brief History of Colorful Gemstones
A Brief History of Colored Stones: From Ancient Egypt to the Red Carpet By David Yurman Nowadays, a celebrity stylist might choose a...

Robert Michael
Jun 14, 20233 min read
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