Collection: Gemstones
Susan Kottemann specializes in curating precious stones from across the globe including tanzanite, spinel, and diamonds from Africa, rubies from Burma, and sapphires from Sri Lanka. With a keen eye, Susan Kottemann also harbors a unique talent for creating the most perfectly matched gem pairs available on the market. Whether you're searching for a single stone or a pair, browse our collection of boulder opals, spessartite garnets, Santa Maria aquamarines, and violet spinels to see why our gems are some of the finest in the industry.
Looking for a specific gemstone? Contact us to let us know what you're looking for!
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5.41 Carat Afghani Blue-Green Tourmaline
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5.76 Carat Afghani Blue-Green Tourmaline
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4.00 Carat Australian Black Opal
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9.03 Carat Australian Black Opal
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A Layout of Three Australian Black Opals
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5.44 Carat Australian Black Opal
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4.38 Carat Afghani Blue-Green Tourmaline
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