Stones for Signet Rings

Natural gemstones suited to men's signet and statement rings, sold loose for your own jeweller to…

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  • Vintage 1930s rose cut Ceylon sapphire, 0.83 ct, face-up on a black background

    Vintage Rose Cut Ceylon Sapphire 0.83 ct, 6 mm – 1930s Light Blue Loose

    Vintage Rose Cut Ceylon Sapphire 0.83 ct, 6 mm – 1930s Light Blue Loose
    0.83 ct · Rose cut · Heated
    $275
  • AGL certified 1.09 ct cornflower blue Ceylon sapphire, high dome oval, with the AGL logo

    AGL Certified Ceylon Blue Sapphire 1.09 ct Oval – Cornflower Blue, Natural Loose

    AGL Certified Ceylon Blue Sapphire 1.09 ct Oval – Cornflower Blue, Natural Loose
    1.09 ct · Oval · Heated
    $650
  • 14.59 ct unheated icy blue Ceylon sapphire, emerald cut, held between the fingertips in daylight

    Unheated Ceylon Blue Sapphire 14.59 ct (16 Ratti) Emerald Cut – Natural Loose (Neelam)

    Unheated Ceylon Blue Sapphire 14.59 ct (16 Ratti) Emerald Cut – Natural Loose (Neelam)
    14.59 ct · Emerald cut · Unheated (no treatment)
    $12,108

Natural gemstones suited to men's signet and statement rings, sold loose for your own jeweller to set. Every treatment disclosed.

Want us to make the signet? The Roho Stone Ring sets a stone you choose from our ring trays in a men's or women's 925 sterling silver signet.