OST
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.
- user-8f608859acbf好评•1周前
Amazing job packing. And the process 💯 the best buying here all the time
- user-0db3348d2a3a好评•2周前
Jasmin from OST was super friendly and available. Competitive pricing with super fast and safe shipping. Will buy again
- user-76e4d4b085cb好评•5周前
Absolutelly great and trustful seller. Makes kind contact with you to make sure that everything about your shipment is going well and safely. I'm a happy buyer and definitely will order on OST again!
- user-76e4d4b085cb好评•5周前
Absolutelly great and trustful seller! Makes kind contact with you to make sure that everything about your shipment is going well and safely. I'm a happy buyer and definitely will order again on OST!
- user-c51174d74e6e好评•6周前
Excellent seller
- user-240371423ec4好评•7周前
Super blij mee. Lange weg afgelegd, maar de moeite waard. EXTREEM goed verpakt!!! Bedankt. En ook BEDANKT voor de extra"s verassingen....Heel Attent!
- user-c27427fa8e1e好评•15周前
Είναι πολύ σωστός πολίτης ότι λέει αυτό είναι Συνεργάζεται με πάρα πολύ καλή εταιρεία Αποστόλων και είναι σωστός επαγγελματίας τα συγχαρητήρια μου
- user-934daa1cece0好评•20周前
Excellent quality, fast shipping, very responsible seller, hope to have the opportunity to continue trading
- user-c4efcc2a8630好评•21周前
super
- teodor-ion好评•30周前
Excelent