opacity: Field Museum - Tiffany window, Grainger Hall of Gems (detail).jpg
opacity: "Agusan Gold Image" 13th century solid gold statue of a Hindu-Malaysian goddess from the Philippines weighing 4 pounds, also known as "The Golden Tara of Agusan"
opacity: Field Museum - Victorian amber comb with gold, pearls, and sapphires.jpg
opacity: "The Green Goddess" peridot and yellow diamonds set in sculpted gold pendant (154-carat peridot) designed by Lester Lampert
opacity: blue topaz crystal with matrix (Russia)
opacity: esquel meteorite containing chrysolites from Argentina
opacity: eighteenth century ceremonial Indian dagger with carved nephrite hilt set with pearls, emeralds, and rubies
opacity: Blue topaz - Field Museum.jpg
opacity: faceted chrysolite
opacity: ancient gold figurine from Columbia
opacity: "Caliente" - fire opals and diamonds set in gold pendant, designed by Maureen Lampert - Field Museum.jpg
opacity: just trust me on this one.
opacity: ruby crystals on marble matrix (Vietnam)
opacity: amethyst cameo (Brazil)
opacity: reverse of "Agusan Gold Image"
opacity: "Morning Rose" Morganite and diamonds set in white gold pendant (42.8-carat morganite) designed and created by Marc Scherer
opacity: "The Chalmers topaz" 5,899.5 carats (Brazil)
opacity: "Garden of Eden" demantoid garnets and diamonds set in yellow and white gold ring (3.07-carat garnet, largest) designed by David Lampert
opacity: oligoclase sunstone pendant
opacity: The Sun God Opal, carved opal set in gold (35-carat opal)
opacity: fragment of black opal from Nevada
opacity: polished slices of watermelon tourmaline from Brazil
opacity: abstract "Cumulus"
opacity: natural rutilated quartz crystal with polished surface (Brazil)
opacity: faceted amethysts from Brazil
opacity: hardness
opacity: colorless diamond on matrix from South Africa
opacity: "Serendipity" color-change sapphire and diamonds set in white gold pendant (56-carat sapphire) designed and created by Marc Scherer
opacity: natural tanzanite crystal (Tanzania)
opacity: natural rainbow moonstone (Madagascar)