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!
-
Sold out
Emerald Cut Diamond
Regular price $0.00 USDRegular priceUnit price / perSold out -
Sold out
Oval Diamond
Regular price $0.00 USDRegular priceUnit price / perSold out -
Sold out
11.60 Carat Australian Black Opal
Regular price $210,000.00 USDRegular priceUnit price / perSold out -
33.07 Carat Pair of Pear Shape Black Opals
Regular price $194,000.00 USDRegular priceUnit price / perSold out -
Sold out
Queensland Boulder Opal Pair
Regular price $0.00 USDRegular priceUnit price / perSold out -
Sold out
1.91cts. Red Spinel Gemstone
Regular price $0.00 USDRegular priceUnit price / perSold out -
Sold out
Natural Rubellite
Regular price $0.00 USDRegular priceUnit price / perSold out -
Natural Color Cushion Spessertite Garnet
Regular price $0.00 USDRegular priceUnit price / perSold out -
Large Round Orange Spessartite Garnet
Regular price $0.00 USDRegular priceUnit price / perSold out -
Sold out
Large Oval Orange Spessartite Garnet
Regular price $0.00 USDRegular priceUnit price / perSold out -
Natural Fancy Orange-Brown Oval Diamond
Regular price $0.00 USDRegular priceUnit price / perSold out -
Round Brilliant Cut Brown Diamond Pair Unavailable
Regular price $0.00 USDRegular priceUnit price / perSold out