These exclusive lab sapphire pendant designs are made to order just for you. We design and craft each piece using only 14K white, yellow, or rose gold. Design your own unique family keepsake by building a pendant with the birthstones of your loved ones. Lab Sapphire Is known As the gem of sincerity and trust and is the birthstone for the month of September. All of the items below are available in 14K white gold, 14K rose gold, and 14K yellow gold.