I believe these are from the 1970s to 1980s (when my father was young). Artificial stones that shine with captivating colors. I don't know the name of the stones, but they have a strong presence. If the color is lighter, they would look good even without a white shirt. They seem like they would be chosen by someone who can pull them off, but if anyone likes them, please consider. #Cufflinks Ornament size: 1.6cm Tie tack pin Ornament size: W1cm Please forgive any errors due to amateur measurements. They have been stored at home for a long time. Please understand that these are old items and have been stored at a regular home. Please check the photos and consider purchasing. I may offer discounts, but I do not respond to individual requests. I will delete and block any comments asking for a discount. I will offer a discount to those who purchase multiple items with the same shipping cost! Color...Silver系 (Silver-toned)