A festive guide to choosing the perfect gemstone gift for Christmas—personal, timeless, and meaningful.

Explore the story behind the Mellon Blue diamond—a 9.51-carat Fancy Vivid Blue, Internally Flawless gem that recently sold for over $26 million. A rare treasure for collectors and connoisseurs.

Explore the timeless elegance of Princess Margaret’s ruby and diamond engagement ring, now worn by Lady Margarita Armstrong-Jones—a royal jewel that continues to sparkle through generations.

Discover the rich history and radiant beauty of November’s birthstones—citrine and topaz—in this guide by SICO International.