Caldera Gem
An exclusive and highly curated selection of diamonds and gemstones for the discerning shopper.
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.
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
Education & Guides
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
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
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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