As a qualified gemstone, at least the following three conditions should be met. 1. Aesthetics: This is the primary condition, requiring bright and pure colors, transparent and flawless, and brilliant, or special optical effects such as color change, discoloration, glare or cat's eye. 2, durable: required to maintain the durability of bright and flash, that is, must be hard, wear-resistant and have good chemical stability. 3, rare: refers to the scarcity of output is expensive. Happy Birthday Candle,Birthday Candles,Cake Candle,Fireworks Candle Shijiazhuang Kelaisi Import & Export Trade Co., Ltd. , https://www.excellencecandle.com
March 01, 2020