Gemstones, regarded as precious gifts from nature, possess the ability to attract planetary energies and bestow astrological benefits upon individuals. To qualify as gemstones, they must possess three key attributes: being precious, rare, and durable.

While it may not be entirely accurate to say that gemstones have a definite lifespan, it can be acknowledged that they have a period of maximum effectiveness in attracting planetary energies and other astrological advantages.

The maximum effectiveness of a gemstone is determined by several factors. One significant factor is the weight of the gemstone, which influences its initial power before being worn. Additionally, the effectiveness of a gemstone is influenced by the specific strength of a planet required by the wearer, as indicated by their birth chart and the planetary position. Consequently, the greater the power needed by the individual, the lesser the gemstone's strength and longevity according to astrology. Therefore, used gemstones that have lost their strength and longevity will not provide astrological benefits.

Scholars suggest the following effectiveness durations for certain gemstones:

• Diamond: 10 years
• Ruby and Sapphire: 8 to 10 years
• Emerald: 5 to 8 years
• Coral, Cat's Eye, and Hessonite Garnet: 3 to 5 years
• Natural Pearl: 5 to 8 years
• Other uparatnas and semi-precious gemstones: 3 years

It's important to note that a gemstone offers maximum benefits when it possesses a powerful life expectancy. However, proper care and maintenance are crucial for preserving a gemstone's effectiveness and original condition. Gemstones react differently to factors such as heat, light, and acids due to variations in their hardness and toughness.

Precious gemstones can generally be divided into two groups based on their durability and lifespan. The first group consists of Ruby, Emerald, all varieties of Sapphire, Hessonite Garnet, and Diamond. These gems have a long lifespan but gradually lose their high polish over time, acquiring scratches on their surface, which may hinder the passage of sunlight. Additionally, a greasy layer may deposit on their surface, blocking the planetary rays they receive. Thus, while gemstones do not have a specific lifespan, their effectiveness for astrological purposes diminishes, emphasizing the need for proper and regular maintenance.

The second group comprises Pearl and Red Coral, known as organic gems, and falls into the opaque category. These gemstones require extra care as they are formed underwater and differ from crystals formed in primary or secondary deposits. Being porous, they can absorb chemicals and must be cleaned cautiously.

Gemstones do not have an expiration date, but their effectiveness can diminish over time. The duration it takes for gemstones to exhibit astrological benefits depends on factors such as quality, purity, origin, and prescribed usage, although opinions may vary.