Gifts: ♦ One thick zipper bag for storage ♦ One silver cloth material: ♦ Natural gemstone main stone tanzanite with zircon size: ♦ A single size of about 2 cm Manual measurement, there may be an error of 0.1~0.2 cm Material: ♦ 925 sterling silver Gem meaning: Tanzanite <Tanzanite / タンザナイト> The birthstone of December is also known as the "Tanzania Stone". It can enhance thinking and analysis, touch inspiration, and be instructive to designers or creative workers. Can strengthen individual enthusiasm and self-confidence, make things go forward, full of fighting spirit ~ About the material: ♦ Sterling silver will gradually oxidize due to wearing for a long time. After the tape is finished, wipe it with a soft cloth and put it into the zipper bag to keep the gloss. The color after oxidation can still be polished with a silver cloth! ♦ The composition and characteristics of each natural stone are different, but there are some ice cracks, mineral defects, black spots, uneven colors, etc. Each of the natural stones is different, so the ornaments made of natural stone are also unique. !