根据德比尔斯报告，2013年中国钻石的需求量上涨了14%，在全球范围内增长的最快。大多数需求是由已婚女性创造的，她们的购买量大约占了购销额的2/3。
在中国，已订婚女性购买量大约占总购买量的20%，占的销售额不到25%；单身女性购买量占购买量的14%左右，占取11%的销售额。
Mellier确认称，虽然中国依然是全球钻石珠宝需求增长的最大贡献者，但是增长速度已开始趋缓。
他还称，在过去的5到10年里中国一直是钻石业务增长最大的发动机。虽然钻石业务增长率有所下降，但中国的钻石业务依然有很大的增长空间。
近几年新的钻石矿发现的数量减少已经降低了钻石的生产率，而且博茨瓦纳、南非和纳米比亚境内的钻石矿也正也趋于枯竭。矿井越深，钻石业务的盈利空间就越小。
中国对已抛光钻石的需求在过去10年间已经充分展现，中国对钻石需求量从2003年占全球总需求量的3%，增长至2013年的13%。
与此同时，钻石在印度和日本2013年的销量(按美元计算)分别下降了10%和6%。(中国进出口网整理翻译）
De Beers said, Chinese women, especially married women pulled up the global diamond and jewelry sales, so that 2013 sales rose 3% year-on-year and reached a record $79 billion.
According to De Beers reports, Chinese demand for diamonds in 2013 rose 14%, which is the fastest growing worldwide. Most of the demand is created by the married women, whose purchase volume accounted for about two thirds of the amount of the purchase and sale.
In China, the purchase amount of ladies engaged takes up about 20% of the total purchase amount and less than 25% of sales; the purchase amount of single women accounts for about 14% of the purchase amount, and 11% of sales.
Mellier recognized that China is still the largest contributor to global growth in demand for diamond and jewelry, but the growth rate begins to slow down.
He also said that in the past 5-10 years, China was the motivation for that diamond business grows rapidly. Although the diamond business growth has declined, the diamond business in China still has much room for growth.
In recent years, with the number of new diamond mines discovered reducing, the productivity of the diamond reduced. Diamond mines in Botswana, South Africa and Namibia also tends to dry up. The deeper the mine is, the smaller profit margins diamond business has.
Chinese demand for polished diamonds in the past 10 years has fully been demonstrated. The percent of China's demand for diamonds in total global demand increased from 2003 3% to 2013 13%.
At the same time, sales of diamonds in India and Japan in 2013 (in dollar terms) respectively decreased by 10% and 6%.
