ALEXANDRITEALEXANDRITEGreen in sunlight. Red in lamplight. Color-changing alexandrite is nature’s magic trick. AMBERAMBERAmber is nature’s time capsule. This fossilized tree resin contains remnants of life on earth millions of years ago. AMETHYSTAMETHYSTThe essence of the color purple, amethyst is beautiful enough for crown jewels yet affordable enough for class rings. AMETRINEAMETRINEThis transparent quartz has colors of both amethyst and citrine, and is called ametrine or amethyst-citrine. AQUAMARINEAQUAMARINENamed after seawater, aquamarine’s fresh watery hue is a cool plunge into a refreshing pool. CITRINECITRINECitrine is the transparent, pale yellow to brownish orange variety of quartz. DIAMONDDIAMONDDiamonds are among nature’s most precious and beautiful creations. EMERALDEMERALDEmerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine. GARNETGARNETGarnets are a set of closely related minerals forming a group, with gemstones in almost every color. IOLITEIOLITEAccording to legend, Vikings used iolite slices to reduce glare when checking the sun’s position. JADEJADEJade is actually two separate gems: nephrite and jadeite. In China, a pierced jade disk is a symbol of heaven. KUNZITEKUNZITECollectors love kunzite for its color range, from delicate pastel pink to intense violetish purple. LAPIS LAZULILAPIS LAZULILapis is a beautiful rock; an aggregate of several minerals, mainly lazurite, calcite, and pyrite. MOON STONEMOON STONEA ghostly sheen moves under the surface of this feldspar, like moonlight glowing in water. MORGANITEMORGANITEMorganite is the pink to orange-pink variety of beryl, a mineral that includes emerald and aquamarine. OPALOPALFireworks. Jellyfish. Galaxies. Lightning. Opal’s shifting play of kaleidoscopic colors is unlike any other gem. PEARLPEARLPerfect shining spheres. Lustrous baroque forms. Seductive strands, warm to the touch. Pearls are simply and purely organic. PERIDOTPERIDOTFound in lava, meteorites, and deep in the earth’s mantle, yellow-green peridot is the extreme gem ROSE QUARTZROSE QUARTZRose quartz is a quartz variety that gets its name from its delicate pink color. RUBYRUBYRuby is the most valuable variety of the corundum mineral species, which also includes sapphire. SAPPHIRESAPPHIREThe name “sapphire” can also apply to any corundum that’s not ruby red, another corundum variety. SPINELSPINELThe Black Prince’s Ruby. The Timur Ruby. For centuries, spinel, the great imposter, masqueraded as ruby in Europe’s crown jewels. SUN STONESUN STONESunstone’s phenomenal varieties show a distinct and lively glitter called aventurescence. TANZANITETANZANITEPoised between lush blue, vibrant violet, and rich purple, exotic tanzanite is found in only one place on earth, near majestic Mount Kilimanjaro. TOPAZTOPAZHoney yellow. Fiery orange. Cyclamen pink. Icy blue. In warm or cool tones, topaz is a lustrous and brilliant gem. TOURMALINETOURMALINETourmalines have a wide variety of exciting colors with one of the widest color ranges of any gem. TURQUOISETURQUOISEAzure sky, robin’s egg blue: Vivid shades of turquoise define the color that’s named after this gem. ZIRCONZIRCONZircon is a colorful gem with high refraction and fire that’s unfairly confused with cubic zirconia.