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Caldera Gem

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Caldera Gem

An exclusive and highly curated selection of diamonds and gemstones for the discerning shopper.

A gemmologist inspects a gemstone under a loupe

Expertly curated

The next time you truly want to make a statement – to really express your love and their individuality - you need a personal gem-shopper. An expert who understands luxury, gem cutting, sourcing and quality. Someone who has already done the hard work for you; who knows that your loved one is unique, so their gems should be too.

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Square Cushion Cut Yellow Sapphire Gemstone

Meticulously hand-picked

When you choose from Caldera’s exclusive and highly-curated selection, you can relax, knowing we’ve mastered the art and science of finding the world’s most desirable diamonds and gemstones. We search across continents for you, hand-picking the best, and only purchasing from authentic and trusted suppliers.

If you want to turn your hand-picked stone into something that you or your loved one can wear and cherish forever, you deserve an expert jeweller, who we’ll happily recommend

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Education & Guides

Famous Gemstones and Their Legends

Famous Gemstones and Their Legends: Mystical Tales

Humans have always been fascinated with shiny rocks, and throughout history, people have been willing to spend fortunes to acquire the rarest and most beautiful gemstones. However, the allure of ge...

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Gemstone Cutting and Polishing Techniques Mastery

Gemstone Cutting and Polishing Techniques Mastery

The art of cutting and polishing gemstones has been practiced for centuries. Highly skilled gem cutters transform rough stones into glittering objets d'art using specialized tools and techniques. C...

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Essential Tips for Caring for Gemstones Safely

Essential Tips for Caring for Gemstones Safely

Gemstones are not only exquisite pieces of nature's art but also precious possessions that require proper care to maintain their beauty and value. To ensure that your gemstones continue to sparkle ...

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