The two main types of valuable gemstones from the same corundum mineral family are yellow and blue sapphires. These diamonds have different astrological behaviours even if their chemical compositions and levels of hardness are comparable. Neelam is connected to Saturn, while yellow sapphire is associated with Jupiter. These two stones have astrological significance. However, most people are curious as to whether or not Wear Yellow Sapphire And Blue Sapphire Together. Vedic astrology states that Pukhraj and Neelam are not compatible with each other.