As the birthstone of May, emeralds are among the most meaningful and luxurious gemstones to gift or collect. SICO International explores the history, quality factors, jewellery trends and growing investment appeal of one of the world's most celebrated coloured gemstones.

Discover how the right gemstone cut can dramatically enhance the beauty and value of sapphires, rubies, and diamonds.

The demand for rare colored gemstones – especially rubies and sapphires – is surging in 2026. Global market research predicts the colored gemstone sector will more than double by 2035, growing from about $1.9 billion today to $5.7 billion.

A striking, large-scale diamond with an elongated cut — discover what makes Zoë Kravitz’s ring a true high jewellery statement.

The Rising Demand for Fine Sapphires & Rubies in 2026: What Retail Jewellers Need to Know The global gemstone market is shifting and fast. In 2026, retail jewellers are seeing a surge in consumer demand for high‑quality coloured stones, particularly sapphires and rubies. These timeless gems are no longer niche alternatives to diamonds; they are now centre‑stage in engagement rings, bespoke jewellery, and luxury collections.

Coloured gemstones are redefining fine jewellery with depth, rarity, and individuality. Discover why these vibrant stones are in demand.

Diamonds are April’s birthstone — celebrated for their brilliance, strength, and timeless appeal. Discover what makes this gemstone truly exceptional.

Soft, elegant, and timeless — cushion-cut diamonds offer a unique balance of brilliance and character. Discover what makes this shape so enduring.

Elegant, elongated, and full of brilliance — oval cut diamonds offer a modern take on a classic shape. Here’s what makes them so desirable.

A luminous Ceylon sapphire surrounded by diamonds has become one of the most recognisable gemstone rings in history. Here’s what makes this design so timeless.

Aquamarine’s serene blue and bloodstone’s earthy strength define March birthstones. Discover their beauty, symbolism, and fine jewellery appeal.

A five-carat cushion-cut diamond showcases how cut, proportion, and restraint can elevate a gemstone into a modern icon of fine jewellery.

A five-carat pear-cut diamond solitaire has captured attention for its scale and simplicity. Here’s why this timeless shape continues to define modern fine jewellery.

February’s birthstones, amethyst and jasper, offer a blend of regal colour and earthy beauty. Discover their meanings and stunning jewellery possibilities.

With its neon blue glow and extreme rarity, Paraíba tourmaline has become one of the most coveted gemstones in fine jewellery today — prized for both beauty and legacy.

Dove Cameron and Damiano David’s engagement rings are a study in modern romance — Asscher‑cut diamonds, refined craftsmanship, and meaningful inscriptions designed to last a lifetime.

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.