September 21 falls on the Virgo-Libra cusp. The Sun typically moves from Virgo into Libra around this date each year, so your exact sign depends on the year and time of birth. Swiss Ephemeris calculations show the Sun enters Libra at varying times. Based on the standard date, your Sun sign is Дева, but you'll likely feel both signs' influence.

People born on September 21 are Дева natives with Earth element energy and Mutable modality. The 3rd decan sub-ruled by Venus adds a distinctive layer to the core Дева personality, making these individuals unique among their sign.

September 21 Дева natives are most compatible with signs that share the Earth element (trine aspect) or complementary elements. Check the compatibility section above for specific sign matches and the best romantic dates.

The traditional birthstone for people born on September 21 is Sapphire. The decan-specific healing crystal is Jade, which resonates with the Venus-influenced energy of the 3rd decan of Дева.

September 21 falls in the 3rd decan of Дева (approximately 30° Дева). This decan is sub-ruled by Venus, which adds complementary energy to the core Дева traits.

While our celebrity database is still growing, all people born on September 21 share the Дева Sun sign at approximately 30° with Venus decan influence.

The numerology root for September 21 is 3. Lucky numbers include 3, 12, 21, 30. The lucky day is Wednesday (ruled by Mercury), and the lucky color is Forest Green.

September 21 belongs to the Earth element through Дева. Earth signs are known for intuition, emotional depth, and empathy.