Not sure which gemstone suits you best in 2026? Let your zodiac sign lead the way with this refined gemstone guide from SICO.

Deep red, rich in history, and full of meaning — January’s birthstone, garnet, is a bold and beautiful way to celebrate the new year.

A rare red intaglio gemstone discovered at a Roman fort in Britain reveals a beautiful scene of Cupids picking grapes—offering a glimpse into ancient luxury and identity.

Miley Cyrus’s east-west cushion-cut engagement ring proves that minimalist design can still make a bold statement. Here’s why this trend-setting ring deserves the spotlight.

August babies are lucky to have not just one, but three stunning birthstones: peridot, spinel, and sardonyx. Each gem brings its own color, history, and energy—making August one of the most dynamic months in the birthstone calendar.

Move over diamonds — coloured gemstones are the new icons of engagement. Discover why more couples are choosing sapphires, emeralds, and rubies to add personal meaning and vibrant beauty to their forever rings.

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.

In the world of fine jewellery and investment gems, the trend is clear: rare coloured gemstones are becoming more than accessories, they’re tangible assets, artistic statements and symbols of timeless elegance. At SICO International Ltd (London), we’ve witnessed first hand how demand for exquisite rubies and sapphires is surging globally. This blog post will explore the forces shaping this trend, dive into what distinguishes top-quality coloured gemstones.

Discover five of the rarest gemstones prized by collectors and investors alike for long-term value.

Explore the exquisite gemstones and craftsmanship in Victoria Beckham’s iconic ring collection.

October is blessed with two dazzling birthstones: opal and tourmaline. Each gem offers its own unique palette and symbolic power, making this month one of the most colourful on the calendar.

At a royal farewell, the Princess of Wales subtly honored her family and recovery journey with a powerful five-ring stack.

Gemstone dealers enter 2025 with confidence as demand for rare and vibrant coloured stones continues to rise. Here’s what’s driving growth—and what buyers are loving now.

From ancient kings to modern collectors, sapphire has long captured imaginations. As the birthstone of September, it brings both brilliance and symbolism.

Gemfields has introduced Imboo, a colossal 11,685-carat emerald discovered at the Kagem Mine in Zambia—now one of the largest rough emeralds ever revealed.

Lady Gaga’s Malibu coffee run with fiancé Michael Polansky revealed more than caffeine cravings—her dazzling new engagement ring is setting the internet ablaze.

Cristiano Ronaldo’s proposal to Georgina Rodriguez was as grand as you’d expect—featuring a jaw-dropping 30-carat engagement ring that’s now the talk of the jewellery world.