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456 articles found showing 151–160
Brown Diamonds: The Complete Guide to Nature’s Warmest Gemstones
Discover brown diamonds, from champagne and cognac to chocolate shades. Learn about their geology, color, GIA grading, value, treatments, jewelry, and market trends.
Memo Orders in Jewelry: The Complete Guide for Suppliers & Retailers
Learn how jewelry memo orders work, why retailers and suppliers use them, the risks involved, and how contracts, insurance, UCC-1 filings, and inventory tracking provide protection.
Gemstone Zoning: Nature’s Hidden Color Pattern
Discover how color zoning forms in gemstones, what it reveals about crystal growth, which gems display it, and why zoning can influence beauty, value, origin, and identification.
A World of Yellow Gemstones: More Than Just One Shade
Discover six stunning yellow gemstones Yellow Diamond, Yellow Sapphire, Sphene, Citrine, Golden Topaz, and Heliodor and compare their color, durability, fire, rarity, value, and ideal jewelry uses.
World's Top 10 Most Expensive Diamonds: A Complete Guide to Earth's Rarest Treasures
Discover the world's top 10 most expensive diamonds, including the Koh-i-Noor, Cullinan, Hope Diamond and CTF Pink Star, and learn what makes these gems so valuable.
Why Are Some Gemstones Green? The Complete Scientific Guide
Discover what gives green gemstones their stunning color. Learn how chromium, iron, vanadium, and natural radiation create the vibrant hues of emeralds, peridot, green diamonds, tsavorite, demantoid g...
Blue Gemstones: Nature's Most Beautiful Shades of Blue
Explore the world's most beautiful blue gemstones, from sapphire and aquamarine to tanzanite, blue spinel, zircon, turquoise, and lapis lazuli. Learn about their colors, origins, hardness, rarity, tre...
Peridot: The Green Gemstone with a Story Beneath Its Color
Discover everything about peridot, the August birthstone known for its vibrant green color and extraordinary geological origins. Learn how peridot forms deep within Earth's mantle and even inside mete...
Jewelry Trends in 2026: The Definitive Guide to Self-Expression, Color, and Personal Storytelling
Top Jewelry Trends 2026: Mixed Metals, Colored Gemstones, Bold Chains & Natural Diamonds