Through the ages, jewels have conveyed their wearer’s power and prestige, social status and beliefs to the world.

Now a start-up in Paris has produced a twist on that idea: jewelry that uses color to communicate with its wearer.

The Spktrl Light ring, introduced in an iOS version last month, is embedded with a miniaturized circuit board that, once connected through an app, registers the arrival of texts, emails or other digital communications. Depending on the app’s settings, it then triggers lights in significant colors to shine through the 1.5-carat lab-grown emerald-cut diamond set horizontally in its white gold bezel.

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https://www.nytimes.com/2025/08/27/fashion/jewelry-technology-lab-grown-diamonds.html?unlocked_article_code=1.hU8.RiER.ANmLssP7LOSm&smid=nytcore-ios-share&referringSource=articleShare