Lapis lazuli is a gem known for its deep blue color, which can range from azure to royal blue to indigo. The most demanded lapis lazuli is a dark blue with flecks of gold. It has a moderate hardness of 5 to 5.5 on the Mohs scale of hardness, which means it can be scratched by harder minerals like quartz and topaz, but can scratch softer minerals like gypsum and talc. Lapis lazuli, with a density of 2.7 to 2.9 grams per cubic centimeter, has a dull to waxy luster but can exhibit a vitreous or glass-like luster when polished.

The crystal lapis lazuli is believed to provide healing in all the physical, emotional & spiritual aspects. Its calming properties are said to help with stress, grief, and trauma; in addition to this, it is also said to help with spiritual growth and connection and is considered a symbol of wisdom and spirituality. Wearing lapis sterling silver jewelry is said to stimulate the third eye chakra, which is the center of intuition and inner wisdom. It also helps in enhancing intellectual abilities and creativity. Lapis lazuli is an astonishing crystal that encourages self-awareness and helps people express their feelings and emotions. Adorning a lapis ring is said to promote learning and education, improve hearing and sight and promote better respiratory and nervous system health.

Lapis lazuli is a semi-precious gemstone that forms when magma pushes into cooler rock, a process called contact metamorphism. This process alters limestone or marble near igneous intrusions and lazurite replaces parts of the host rock. Lapis is also formed at temperatures between 500 to 600°C, and its the composition of lazurite, calcite, pyrite, feldspar, mica, and amphibole. The vibrant blue color of lapis lazuli comes from the mineral lazurite and it also contains whitish marble veins and small golden inclusions caused by iron. The golden streaks come from pyrite, a yellow metallic mineral made of iron and sulfur.