Pendant is hand made
Is silver in color
Heart measures .75 inches in width and length
Cord necklace measures 18 inches in length with a 2 inch extender
Chain necklace measures 18, 20 or 24 inches in length
They are genuine gemstones.

I have combined these crystals for concentration and retaining knowledge.

Coral- red - Found in the deep sea, red bamboo coral absorbs negative energy and helps to bring peace within yourself. It also accelerates the transfer of knowledge. Coral represents diplomacy and concurrence. It quiets the emotions and brings peace to within the self. Facilitates intuition, imagination and visualization.
Coral strengthens the circulatory system and the bones of the body. It stimulates tissue regeneration and nourishes the blood cells. It treats disorders of the spinal canal, and the nervous system.
Red Coral stimulates the energetic pursuit of pre-determined goals. It protects from depression and despondency. Treats hiccups, colic and heartburn, and aids in the release of impurities from the muscular system. Red Coral treats disorders of the kidneys, and bladder.

Sodalite - blue and white, is a stone of logic, rationality, and efficiency. It is helpful for work in groups and to stimulates thought. Sodalite is a stone that is good for healing breaches in communication. It is a stone of truth, and brings this to all communications. It can also help end arguments or other disagreements.
It is particularly useful for honesty of emotions and love. It increases intelligence, knowledge and learning, and can unite the logical with the spiritual. Physically it helps by relieving insomnia, And it is also used in crystal healing for quicker relief  of head colds.