Expansion coefficient: 104 Please check the size in the image. Red Orange Yellow Topaz Photographed in natural light. The color may appear different depending on your device. We plan to ship via Nekopos (a Japanese delivery service). We will use recycled materials such as newspaper, cushioning material, and cardboard for packaging. We will pack it to prevent breakage, but there is a possibility of damage upon arrival. (Please understand that there are no replacements or compensation.) We may change from Rakuraku to Yuyu (other Japanese delivery services). Please only purchase if you agree to the above. Please refrain from price reductions or selling individual items. Combined shipping with other items will be discounted by 200 yen.