Individuals born between April 21 and May 20 belong to the zodiac sign Taurus. Taurus is an earth sign associated with qualities such as practicality, stability, and sensuality. Several gemstones are traditionally associated with Taurus, believed to complement and enhance the energies of this sign. Some gemstones linked to Taurus include:

1. Emerald: Emerald is often considered the primary birthstone for Taurus. It is associated with prosperity, love, and harmony, and is believed to bring balance to the practical and sensual nature of Taurus.

2. Rose Quartz: Rose Quartz is a gemstone associated with love, compassion, and emotional healing. It complements the nurturing and affectionate qualities of Taurus individuals.

3. Sapphire: Blue sapphire is believed to bring focus, discipline, and wisdom, making it a suitable gemstone for Taurus individuals who appreciate stability and practicality.

4. Citrine: Citrine is associated with abundance, prosperity, and positive energy. It is believed to enhance Taurus's practical nature and attract wealth.

5. Rhodonite: Rhodonite is a gemstone associated with emotional healing and balance. It is believed to help Taurus individuals navigate their emotions and promote self-love.

6. Aventurine: Aventurine is associated with luck, prosperity, and heart health. It is believed to bring positive energy and balance to Taurus individuals.

It's important to note that these gemstone associations are based on traditional beliefs and metaphysical practices, and there's no scientific evidence supporting their efficacy. If you're interested in the symbolism or properties of gemstones, choosing one that resonates with you personally is key. Personal preference, aesthetics, and individual connection to the stone are important factors to consider when selecting gemstones.