Our Story

Meet the Experts


Mitchell J. Swerdlow

Favorite gemstone: Sapphire

Favorite piece of personal jewelry: My Cartier Roadster watch

Favorite aspect of my work: “Being able to forge and conclude a jewelry purchase or sale from beginning to end, maintaining the integrity of the pieces and their history while satisfying all parties involved.”

Quick Overview:

With a career spanning over 35 years in the diamond and jewelry business, Mitchell Swerdlow is the inspiration and driving force behind Gulfstream Jewels, as well as his other successful ventures in the tightly-knit diamond and jewelry buying and selling industry, including Mitchell Swerdlow, Inc.

As a founding member of the Diamond Bourse of Southeast United States, Swerdlow maintains his board status with the organization, as well as membership in the World Federation of Diamond Bourses and the New Your Diamond Dealers Club.



Kristen Markovich

Favorite gemstone: Alexandrite

Favorite piece of personal jewelry: My rock crystal, diamond, emerald, deco bracelet given to me by my husband

Favorite aspect of my work: “The trusting relationship between diamond dealers. Having come from an industry where multiple signatures and legal stamps were the norm, a handshake between diamond dealers was refreshing. It is a small industry in which reputation means everything. You have to maintain a reputable business practice or you’re out. People come to us with all kinds of jewelry from all different eras. It is amazing to see how styles in jewelry have changed through the centuries and decades.”



Jeffrey Leech

Favorite gemstone: Diamond

Favorite piece of personal jewelry: My Cartier Snoopy pendant

Favorite aspect of my work: “As a child, I was fascinated by gemstone mining. Through the years it has proven to be even more intriguing than I could have ever imagined. The never ending challenge of new finds and changing markets keeps me engaged and enthusiastic about my chosen profession.”



Jeremy Leech, G.G.

Favorite gemstone: Paraiba Tourmaline

Favorite piece of personal jewelry: My wife’s wedding ring

Favorite aspect of my work: “I got involved in the industry because I saw how much my father enjoyed his job. Now, as a GIA-certified Graduate Gemologist, I get to enjoy a profession that takes us all over the world, meeting new people and seeing new people. It’s definitely the best job in the world!”

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