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Hearts & Arrows Lab Grown Diamond Engagement Ring

Discover extraordinary brilliance with our exclusive Heart & Arrow lab-grown diamonds—each stone precision-cut to reveal a stunning pattern of symmetrical hearts and arrows. Accompanied by a dedicated Hearts & Arrows certificate, these diamonds represent the pinnacle of cutting excellence, beautifully symbolising love, balance, and unity. A meaningful choice for your forever moment.

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  • Before a diamond is mounted, the Hearts & Arrows pattern can be seen using a special optical viewer.

    - From the top, you’ll see a symmetrical pattern of arrows.

    - From the bottom, perfectly formed hearts appear.

    Once the diamond is set in a ring, only the arrows may remain visible through careful inspection. If you're curious, we’re happy to show you the pattern before setting or share viewer images on request.

  • No — to exhibit the precise Hearts & Arrows pattern, a diamond must be cut as a standard round brilliant with exactly 57 or 58 facets. Other shapes (such as oval, emerald, or pear cuts) do not have the symmetrical facet arrangement required to display the optical pattern of hearts and arrows.

  • Not quite — Hearts & Arrows diamonds are round brilliant cuts, but they belong to a rare category where precision reaches a higher level. To reveal the distinctive hearts and arrows pattern, a diamond must not only have exceptional symmetry and polish, but also fall within very specific ranges of angles, proportions, and facet alignment.

    These exacting standards go beyond standard "excellent" or "ideal" cut grades, transforming a classic round brilliant into a visibly superior diamond — one that reflects light with perfect harmony and sparkles from every angle.

  • Yes. Each Hearts & Arrows lab-grown diamond at Keanis is IGI-certified, and the certificate includes a specific Hearts & Arrows designation if the pattern meets IGI’s standards.

    See how IGI defines and inspects Hearts & Arrows:

    🔗 Learn more from IGI

    🔗 IGI Hearts & Arrows Report

  • Hearts & Arrows diamonds are exceptionally rare — only a small percentage of round brilliant diamonds meet the strict criteria for this optical pattern. Achieving it requires master-level craftsmanship, precise proportions, and perfect facet alignment. The cutting process is not only more complex and time-consuming, but also results in greater material loss. Not every cutter can achieve this level of precision, which is why these diamonds command a premium. In return, you receive a stone that outshines others in brilliance, balance, and deeper symbolic beauty.