The Celtic Trinity Knot is the most popular Celtic and Irish design. It represents eternity and continuity. Christians have used to represent the Holy Trinity: Father, Son and Holy Spirit. The never ending knot work can symbolize the love and never ending commitment given in the sacred blessings of the marriage vows. Pendants are available in yellow gold, white gold, rose gold and sterling silver. Gold pendants are available in 10K or 14K. Silver pendants are crafted with 0.925 sterling silver. All jewelry is made in the USA. Products shipped fast and free. 30 day money back guarantee for our customer’s convenience.