Gemini Constellation Necklace14k gold and diamond constellation necklace, with . 42 total carat weight. Wear your Astrological sign or the sign of a loved one. A perfect custom gift and timeless keepsake of our celestial destiny. Pendant hangs on an 18" chain with a loop at 16", so it can be worn at either length. May 22 June 21 Gemini are many sided, quick both in the mind and physically. They are brimming with energy and vitality and clever with words. They are intelligent and