Agate Buying Guide Decorative, patterned forms of agate are excellent natural gems. Learn more about agate's mesmerizin View Guide
Alexandrite Buying Guide Vivid color change makes alexandrite one of the world’s most coveted stones. Our alexandrite buying View Guide
Amber Buying Guide One of the earliest known gems, amber’s bright sunshine hues delight and enthrall. Learn more about View Guide
Amethyst Buying Guide Long valued for its purple color and symbolic associations, amethyst is a versatile gem. Our amethys View Guide
Ammolite Buying Guide With bright rainbow iridescence, ammolite is sure to draw attention. Read about this gem’s unique qu View Guide
Aquamarine Buying Guide No gem evokes the blue-green colors of the sea like aquamarine. Our aquamarine buying guide can help View Guide
Blue Tourmaline (Indicolite) Buying Guide Our indicolite buying guide can help you learn how these blue tourmalines are graded, what to avoid, View Guide
Choosing, Rating, and Grading Diamonds First-time gem buyers may find diamond grades confusing. Our consumer guide explains how diamonds ar View Guide
Chrome Tourmaline Buying Guide Rare chrome tourmaline can show an emerald-like green color. With a highly desired color and tourmal View Guide
Chrysoprase Buying Guide With bright, apple-green hues, chrysoprase makes an eye-catching jewelry stone. Our chrysoprase buyi View Guide
Citrine Buying Guide Citrine’s affordable autumn hues make it a great option for trendy jewelry. Read about the quality f View Guide
Conch Pearl Buying Guide Considering a conch pearl buying trip to the Caribbean? Quality factors for these gems differ from c View Guide
Crystalline Quartz Buying Guide Although often overlooked, quartz is available in many styles at reasonable prices. Our crystalline View Guide
Demantoid Garnet Buying Guide Stunning green hues and a brilliance that outshines diamond combine to make demantoids truly captiva View Guide
Emerald Buying Guide Our emerald buying guide can help you learn how these gems are graded, what to avoid, and how to ide View Guide
Garnet Buying Guide With so many colors and varieties available, garnet buying can be daunting. Whether starting your co View Guide
Green Tourmaline (Verdelite) Buying Guide Looking for a tourmaline jewelry stone? If you like green and you're on a budget, green tourmaline o View Guide
Iolite Buying Guide Soft, violet-blue hues have made iolite a popular stone. Read about the quality factors for this tre View Guide
Jade Buying Guide “The Stone of Heaven,” jade has an unmatched elegance. Learn more about the unique quality factors o View Guide
Kunzite Buying Guide Rare and fragile, kunzite challenges lapidaries and delights jewelry aficionados. Our kunzite buying View Guide
Lapis Lazuli Buying Guide Our lapis lazuli buying guide can help you learn how to grade these gems, what to avoid, and how to View Guide
Malaya Garnet Buying Guide Rare malaya garnets come in many colors and make wonderful jewelry stones for any style. Learn the 4 View Guide
Melo Pearl Buying Guide Bright orange colors and flames that seem to dance across the surface make the melo pearl a fascinat View Guide
Moonstone Buying Guide With sheen reminiscent of moonlight, moonstone is treasured across civilizations. Our moonstone buyi View Guide
Morganite Buying Guide Morganite has become a popular jewelry stone, especially for engagement rings. Our morganite buying View Guide
Opal Buying Guide Our opal buying guide can help you learn how opals are graded, what to avoid, and how to identify a View Guide
Oregon Sunstone Buying Guide Our Oregon sunstone buying guide can help you learn how these gems are graded and how to identify a View Guide
Padparadscha Sapphire Buying Guide Padparadscha sapphires get their name from the Sinhalese word for “lotus colored.” This rare and elu View Guide
Paraíba Tourmaline Buying Guide Paraíba’s neon blue hues stunned the gem world in the 1980s. Read about the quality factors for this View Guide
Pearl Buying Guide In this golden age of pearls, a wide variety of shapes, sizes, and colors are available. Our pearl b View Guide
Peridot Buying Guide Our peridot buying guide can help you learn how these gems are graded, what to avoid, and how to ide View Guide
Precious Coral Buying Guide Deep-water coral displays bright, rich reds and delicate pinks. Our precious coral buying guide will View Guide
Quahog Pearl Buying Guide Your next plate of steamed clams might hold a rare quahog pearl. Learn how to judge the quality of t View Guide
Rubellite Tourmaline Buying Guide Like all tourmaline gemstones, rubellite wears well in almost any type of jewelry. This stone's rasp View Guide
Ruby Buying Guide Our ruby buying guide can help you learn how rubies are graded, what to avoid, and how to identify a View Guide
Rutilated Quartz Buying Guide Silky golden rutile inclusions in quartz have become quite popular. Read our rutilated quartz buying View Guide
Sapphire Buying Guide Long associated with royalty, sapphires are some of the most popular (and expensive) gems in the wor View Guide
Sphalerite Buying Guide Our sphalerite buying guide can help you learn how these gems are graded, what to avoid, and how to View Guide
Spinel Buying Guide Our spinel buying guide can help you learn how spinels are graded, what to avoid, and how to identif View Guide
Tanzanite Buying Guide More than just a simulant for sapphire, tanzanite’s vivid hues have stunned the gem world. Our tanza View Guide
Topaz Buying Guide Our topaz buying guide can help you learn how topazes are graded, what to avoid, and how to identify View Guide
Tourmaline Buying Guide Known for stunning, saturated hues, tourmaline is a colorful and modern gemstone. Read about quality View Guide
Tridacna Pearl Buying Guide Clam pearls can grow to be some of the largest in the world. Learn more about these aquatic gems and View Guide
Turquoise Buying Guide Revered for millennia, sky blue turquoise still has a dedicated following. Our turquoise buying guid View Guide
Watermelon Tourmaline Buying Guide Looking for a fun summertime gem? Watermelon tourmaline adds a pop of color that's perfect for a pla View Guide
Zircon Buying Guide Long valued for its brilliance, zircon is a natural and affordable beauty. Learn more about the qual View Guide
Gemstone Buying Guides
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