In recent years, the number of French painting enthusiasts has surged, leading to a significant rise in demand for bloodstone seals. This growing interest has been reflected in the auction market, where the price of bloodstone has steadily climbed over the past few years. For instance, at the Suzhou Art Auction in May this year, a small piece of bloodstone sold for as much as 120,000 yuan. As a result, many ordinary investors are now asking: where can they purchase and properly identify genuine bloodstone?
According to the Guangdong Baoyu Stone Association, bloodstone is currently the semi-precious stone with the fastest price growth in the market. Over the past two years, large bloodstone pieces weighing more than one kilogram, as well as "Da Hong Pao" (a high-quality variety), have nearly doubled in value. In the Guangzhou market, the unit price of regular bloodstone seals has reached over 50,000 yuan, while some rare "Da Hong Pao" stones have even fetched several million yuan.
This surge in demand is partly driven by an increase in French art lovers who are looking for unique and traditional materials like bloodstone seals. One local seller reported receiving over 20 orders in just one month, with many entrepreneurs and scholars placing custom requests. The limited supply of heliotrope—like diamonds, which require hand-polishing rather than mass production—has created a supply-demand imbalance, further driving up prices.
Xiang Xiankai, director of the Guangdong Geological Bureau's Jewelry Testing Center, notes that bloodstone has become another highly sought-after Chinese product, similar to Hetian jade. Looking at the historical price trends of Hetian jade, it saw a sharp increase between 2003 and 2006, followed by a decline, but its current value remains about five to six times higher than in 2003. Based on this pattern, bloodstone has risen by around four times in just a few years, and there may still be room for further appreciation.
Unlike Hetian jade, bloodstone has experienced a price increase even during a difficult market period. Meanwhile, over 50% of other semi-precious stone products, such as crystal and agate, have seen their prices drop by two to three percent. With the economic recovery since 2009, more individuals and groups are likely to show interest in bloodstone.
When it comes to identifying real bloodstone, one key factor is its low hardness. Bloodstone has a specific gravity of around 2.6, and you can easily scratch its surface with a knife or even bite it, leaving visible marks. In contrast, imitations made from iron ore or quartz tend to be harder and less likely to show damage.
If you're unsure, you can use a magnifying glass and a spotlight flashlight to check the stone. When illuminated, true bloodstone will display a flowing red hue, known as "blood." If no such effect is visible, it might be a fake or lower-grade product.
Genuine bloodstone typically has a smooth and even surface with few pores. Fake versions, often dyed, may show signs of discoloration or uneven texture when examined closely. You may also notice small brown spots under a magnifying glass, indicating it’s not authentic.
The color of real bloodstone is distributed throughout the stone, giving it a deep, layered appearance. Counterfeit stones usually have red color only on the surface, lacking depth and showing obvious signs of artificial treatment.
Changhua Bloodstone, found mainly in Zhejiang Province, is considered one of China's most valuable native gemstones. Among the different sources, the old pits (Lao Hang) produce the highest quality, with richer color and texture compared to the newer pits (Xinkeng). Lao Hang bloodstone is currently the most expensive type, often priced two to three times higher than Xinkeng bloodstone.
The value of bloodstone also depends on the intensity and distribution of its red color. It comes in various shades, including bright red, dark red, light red, and purple. Stones with more vivid red color, balanced distribution, and a deep sense of thickness are considered more valuable. Typically, stones with over 50% red color are considered treasures, while those with 70% or more are extremely rare and valuable.
For beginners entering the market, starting with bloodstone that has 40–50% red color is a practical choice. This allows for reasonable investment without too high a cost. Stones with less than 30% red color may have limited appreciation potential.
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