Patents Assigned to IDD LIMITED
  • Publication number: 20250107600
    Abstract: The present invention provides a gemstone comprising a girdle dividing the gemstone into a pavilion and a crown having a table surface; a tier of facets cut into the pavilion at a position immediately below the girdle; and a continuous groove. The groove facilitates mounting to a collet having a mounting rim. The continuous groove is located in the tier of the facets cut into the pavilion. The placement of the tier of facets and continuous groove does not obstruct light return.
    Type: Application
    Filed: December 13, 2024
    Publication date: April 3, 2025
    Applicant: IDD LIMITED
    Inventors: Ian B. DOUGLAS, Michiel J. BOTHA
  • Patent number: D831525
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: October 23, 2018
    Assignee: IDD LIMITED
    Inventors: Ian B. Douglas, Michiel J. Botha