Carnelian (Agate)/Sard Hearts #5 measure approximately 1 1/4" to 1 3/8" (31mm to 36mm) and weigh approximately .8 to 1.1 ounces (21.4 to 28.2 grams). Please let me pick one for you. These are $4.00 USD each.
Carnelian was known and used in ancient Egypt. I saw it on one of King Tut's sarcophagi myself and in other things in his tomb (i.e., dagger, uraeus [crown]). Turquoise and Lapis Lazuli were also used. Carnelian's lovely orange color makes it a wonderful Navel Chakra crystal, and it is useful to combat depression! Carnelian Agate connects us with the Earth and the Universe. This crystal is most effective on the Navel or Sacral (Root) Chakra but also works well on the Solar Plexus Chakra and the Heart Chakra.
This crystal helps you find your place in the world. It is a crystal of protection and guards you against envy, fear, and rage as well. Carnelian brings inspiration to you from the spiritual world. It helps you feel energy coming into you and helps you deal with sorrow when it is present. In combination with Chlorite (i.e., Seraphinite, Green Chlorite in Quartz) and Ruby Crystals, it will eliminate psychic attack and also free a geographic area of spirits still bound to the earth. These three crystals can also be used in a grid to protect you and your environment from a return of those negative energies.