Lava stone aromatherapy necklace in rose gold, gold or silver, essential oil diffuser necklace. Available with a sterling silver plated chain, 16k gold plated chain or 16k rose gold plated chain. Necklaces are 18 inches in length. If you would like a different length chain please leave a note when you check out. Aromatherapy necklace features a lava stone bead in your choice of color. Simply add 1-3 drops of your favorite essential oil to the lava bead or use a roller ball of your favorite oil mixture. The scent will last for hours to days, depending on the strength of the oil and how much is applied. Place the oil on the beads and allow the oil to soak into the beads for 5-15 minutes, then wipe the excess away with a tissue or cloth. This allows for a way to carry your favorite scents with you all day long in a fashionable way. Avoid contact of the oil with the chain to prevent tarnishing.