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The Allure of Sapphires: Nature’s Most Enchanting Gemstone
When it comes to rare and precious gemstones, sapphires have long captivated royalty, collectors, and connoisseurs alike. At Sico International, based in London’s prestigious Hatton Garden, sapphires are not just a speciality — they’re a passion. With over 26 years of global experience, and sourcing offices in Colombo, Sri Lanka, and Chantaburi, Thailand, we offer clients access to some of the rarest and most valuable natural sapphires in the world.

Sico International
Jun 62 min read
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Curated Collections of Exceptional Gemstones
SICO International, nestled in the heart of London's renowned Hatton Garden, stands as a beacon for connoisseurs and collectors seeking the world's most exquisite gemstones. With over 26 years of experience, this family-run enterprise has cultivated a reputation for sourcing and supplying rare, certified gemstones that epitomise luxury and authenticity.

Sico International
May 212 min read
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2025 Coloured Gemstone Market: Trends, Ethics and SICO International’s Expertise
The demand for rare colored gemstones – especially rubies and sapphires – is surging in 2025. 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.

Sico International
May 143 min read
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The Allure of Rare Gemstones: SICO International's Commitment to Excellence
In the heart of London, SICO International stands as a beacon for connoisseurs and collectors seeking the world's most exquisite rare gemstones. Specialising in precious colored stones—predominantly rubies and sapphires—SICO International has built a reputation for sourcing and supplying gems of unparalleled quality and authenticity.Â

Sico International
Apr 291 min read
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Discover the World’s Rarest Gemstones with SICO International
Nestled in the heart of London’s Hatton Garden, SICO International stands as a beacon for connoisseurs of rare and exquisite gemstones. With over 26 years of unparalleled expertise, we specialise in sourcing and supplying the finest Rubies, Sapphires, Diamonds and other precious gems to a discerning global clientele.

Sico International
Apr 232 min read
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The Timeless Allure of Rare Coloured Gemstones: A Glimpse into SICO International's Exquisite Collection
Nestled in the heart of London's historic Hatton Garden, SICO International stands as a beacon for connoisseurs and collectors seeking the world's most exquisite rare coloured gemstones. With a legacy spanning nearly three decades, our boutique firm has earned a reputation for sourcing and curating exceptional rubies and sapphires that captivate the senses and tell stories of timeless elegance.

Sico International
Apr 162 min read
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Why SICO International is Your Trusted Supplier of Ruby and Sapphire Gemstones
When it comes to high-quality gemstones, SICO International stands as one of the most reputable suppliers in the heart of London.
Sico International
Dec 1, 20244 min read
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New and Unique Gemstones to Watch in 2024
From Sonoranite to Padparadscha Sapphires, these unique stones are adding fresh inspiration for collectors & designers
Sico International
Oct 20, 20243 min read
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The Story Behind Beyoncé’s Iconic Engagement Ring: A £6 Million Masterpiece
This exquisite 18-carat emerald-cut diamond is a symbol of the couple’s enduring romance and Beyoncé's timeless style.

Sico International
Oct 13, 20242 min read
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The Royal Gem: The Beauty and Legacy of Kate Middleton's Sapphire Engagement Ring
Kate Middleton’s engagement ring, featuring a stunning 12-carat Ceylon sapphire, a royal heirloom steeped in history.
Sico International
Oct 2, 20242 min read
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How to Spot High-Quality Rubies, Sapphires, and Diamonds: A Gemstone Buyer’s Guide
Learn how to spot high-quality rubies, sapphires, and diamonds by understanding key factors such as colour, clarity, cut, and carat.
Sico International
Sep 23, 20242 min read
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How to Care for Your Gemstones: Keep Them Sparkling!
Gemstones are timeless treasures. To ensure they remain in pristine condition for years to come, proper care is essential.
Sico International
Sep 15, 20242 min read
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Are Gemstones a Good Investment?
In this article, we explore the key factors that influence the value of gemstones, such as rarity, demand, and quality
Sico International
Sep 13, 20242 min read
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History of SICO International Gemstone Suppliers in London
Sico International was founded by professional gemstone expert, Anthony Aziz in 1996. Anthony first started working in the industry with...
anthony04699
Feb 4, 20222 min read
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