gem
JP1822061SActive Publication Date: 2026-03-18LUCILKAY CO LTD
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Designs
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-03-18
Smart Images

Figure 0001822061000001 
Figure 0001822061000002 
Figure 0001822061000003
Abstract
This item is a gemstone with 58 facets, including the culet. The length-to-width ratio of the gemstone is 2:1, which increases the efficiency of light reflection from the pavilion after it enters from the crown. This ratio also emphasizes the gemstone's longitudinal direction, creating the impression of slender, long fingers when worn as a ring. Similarly, when worn as a necklace, the synergistic effect with the collarbone, which extends in the longitudinal direction of the gemstone, creates the impression of a beautiful décolletage. Furthermore, when compared to items of the same mass, the emphasis on the longitudinal direction gives the impression of an enlarged surface area. Combined with the emphasis on the edges of the gemstone due to this ratio, it also gives the impression of a more defined overall outline.
Need to check novelty before this filing date? Find Prior Art