fancy color diamonds

A high-resolution photograph of a vivid triangular-cut Ocean Green Diamonds specimen.

Ocean Green Diamonds Guide: Rarity, Value, and Care

Introduction Ocean Green Diamonds rank among the rarest and most mysterious gemstones on Earth. In fact, even the most experienced gemologists frequently describe them as the “unicorns” of the colored diamond world. If you have ever seen one in person—or even in a professional photograph—you already understand why they command such fascination. Their electric blue-green glow […]

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2025 Opulence Collection coin with Canadian yellow diamonds.

2025 Opulence Collection: Canadian Yellow Diamond Coins

Summary The Royal Canadian Mint presents the 2025 Opulence Collection with two rare coins—Radiance and Brilliance—each set with Canadian fancy yellow diamonds from the Ekati Mine. Radiance features six marquise-cut stones in pure gold, while Brilliance blends platinum, gold accents, and twenty-three diamonds shaped around the Canada lily. Through careful craftsmanship, limited mintages, and controlled

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