18-Carat Gold Jewelry and Synthetic Diamonds

Ethical jewellery is an approach that takes into account the environmental and social impact of each piece, from the extraction of raw materials through to the finished jewel. This means traceable, responsibly sourced gold, lab-grown diamonds that avoid the issues associated with mining, and respectful working conditions for every artisan. At Lauredi, ethics are not a marketing claim: they are the foundation of our maison. Our lab-grown diamonds require only a fraction of the ecological impact of mined diamonds, and our 18-carat gold comes from responsible supply chains. Choosing ethical jewellery means giving a jewel you can be proud of in every sense of the word.

18-carat gold (also marked 750/1000) contains 75% pure gold, giving it the perfect balance of brilliance, durability, and value. Unlike 9-carat gold, which is more affordable but less radiant, 18-carat gold retains its rich color over time and offers better resistance to everyday wear. It is the standard used by leading jewelry houses, which is why all Lauredi creations are crafted exclusively in 18-carat gold, for jewelry designed to be passed down through generations.

Several clues can help you identify a genuine diamond on a ring. The fog test is the simplest: breathe on the stone— a real diamond clears almost instantly thanks to its exceptional thermal conductivity. Also look at refraction: an authentic diamond refracts light intensely, creating multicoloured flashes (the diamond’s “fire”). Please note that these at-home tests have their limits. For absolute certainty, ask for a gemmological certificate (IGI, GIA). At Lauredi, every diamond comes with its certificate, whether natural or lab-grown, because a synthetic diamond is a real diamond, with the same physical and optical properties.

The green diamond is one of the rarest and most captivating gemstones in the world. Its colour comes from natural exposure to radiation over millions of years or, in the case of lab-grown diamonds, from a controlled treatment that replicates this phenomenon. At Lauredi, our lab-grown green diamonds offer the same beauty and optical properties as a natural green diamond, at a fraction of the price, while remaining an ethical and responsible choice. Whether for a distinctive engagement ring or a collector’s jewel, the green diamond is a bold choice that is sure to make an impression.

The blue diamond owes its color to the presence of boron in its crystal structure; it is one of the most coveted gemstones in the world. In its natural form, blue diamonds command astronomical prices (the Hope Diamond is the most famous example). Lab-grown blue diamonds, by contrast, offer the same captivating hue at an accessible price point, with full traceability. For an engagement ring, a blue diamond adds a distinctive touch while preserving the brilliance and hardness of a classic diamond. At Lauredi, we offer lab-created blue diamonds set in 18-carat gold, for a piece of jewelry as unique as your story.

The pink diamond has become one of the most coveted gemstones in contemporary fine jewelry, especially since the closure of Australia’s Argyle mine, which produced 90% of the world’s natural pink diamonds. This rarity has sent prices soaring, with some natural pink diamonds exceeding €2 million per carat. The lab-grown pink diamond offers a responsible, accessible alternative: the same physical properties, the same brilliance, the same romance—without the environmental impact of mining. At Lauredi, our lab-grown pink diamond creations, set in 18-carat gold, combine timeless elegance with a conscious choice.