1, limited supply
The supply of rubies is very limited. Ruby is only produced in certain areas. In addition, the mining of rubies is very difficult, and it takes a long time to obtain high-quality gems, which makes the supply of rubies even scarcer.
2, the price is expensive
Ruby is too expensive for most people to buy. Even a small ruby with low quality may cost more than other gems, such as sapphire and emerald. So few people will choose ruby as the main material of jewelry.
3, the hardness is too low
Ruby is not as hard as other gems. The hardness of ruby is 9, which is slightly lower than that of other gems such as diamonds, and it is 10. So rubies are easily scratched and damaged, which may be one of the reasons why some people don't choose rubies.
Matters needing attention in buying rubies
Before buying rubies, you need to know the basic knowledge of rubies, such as color, transparency and hardness. Let you correctly evaluate the quality and value of rubies. When buying rubies, it's best to ask for the appraisal certificate of the gems to ensure that the purchased rubies are genuine and of high quality.
The color of ruby is one of the most important quality factors, so you should carefully observe the color of ruby when buying to ensure that its red tone is bright, uniform and free of impurities. Authentic rubies should be bright red, but not too dark or too light. High-quality rubies should have good transparency and should not have obvious inclusions or cracks.