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来自 OST 的物品
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At OST, we are proud diamond manufacturers with a legacy rooted in excellence and craftsmanship. We specialize in natural diamonds, offering fancy shapes and rare, one-of-a-kind stones that are ethically sourced, cut, and polished entirely in-house. While we also craft fine jewelry, our true expertise lies in diamond manufacturing. Every diamond reflects our dedication to brilliance, quality, and responsible sourcing—backed by generations of experience. To ensure trust and transparency, we offer diamonds certified by globally recognized institutions such as the GIA (Gemological Institute of America) and IGI (International Gemological Institute), providing our clients with assurance of authenticity, grading accuracy, and value.

13条评价反馈
  • user-29ca3edb227d
    好评
    •32周前

    Sehr guter Kontakt, gut verpacktr. Steine sind ok und hübsch. Habe in 2 Auktionen gekauft.

  • user-6fee46e534db
    好评
    •33周前

    Everyrhing was OK. Trustable. Thank you soo much for your kind help!