Fred Cuellar

The founder and president of Diamond Cutters International, Fred Cuellar is one of the top diamond experts in the world, as well as a three-time Guinness Book record holder in jewelry design.

Pillow Tops

Cushions, Asschers, European, Old-miners, Rose cuts; all diamond cuts long gone like the era they flourished in. Gone like the flappers and the Roaring Twenties; gone like the Great Depression and the Zoot suits — or are they? Gadzooks, the Pillow Tops are back! Practically every jeweler from here to Kalamazoo has resurrected Pillow Tops …

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Dangerous Metals: The Truth About Tungsten and Cobalt Wedding Bands

Fred Cuellar, The Diamond Guy™, and Dr. Mark Mehaffey discuss the truth about removing wedding bands–including gold, platinum, silver, titanium, stainless steel, cobalt, and tungsten. The equipment to remove or cut tungsten and cobalt wedding rings are not as readily available as some have lead you to believe. Fred shows you how to remove these …

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Harry Winston Engagement Rings vs. Tiffany & Co. Engagment Rings

I’m constantly asked to compare engagement rings from Harry Winston and Tiffany & Co. “Fred, is the Tiffany Embrace better than the micro pave Harry Winston? Is the classic Winston better than a classic Tiffany? Or is the double claw prong solitaire of the Winston better than a Butter Cup Tiffany solitaire?” The answer? Depends. …

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Color Typing

They’re all diamonds, yes, but color does make a difference. Let’s start this piece by asking what on the surface might seem like a very simple question, Shouldn’t two diamonds of the exact same weight, same clarity, same color, exact same proportions, non-fluorescent, same purchase date, same lab grading report date, both bonded with the …

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Color Grading

Color Grading Scale Checking your diamond’s report card. Diamonds come in virtually all colors of the rainbow, from the “beautiful violet” of the Hope diamond to shades of blue, brown, gray, orange, etc. But colored diamonds are very rare and precious. Chances are, all the diamonds you’ll see in your diamond shopping will be white …

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