The king of yantra’s will shower blessing of lasting wealth (Lakshi) over you and your family. The Bagla mukhi Yantra will render help to you in matters of dispute and in times of need. Eg. In destroying in enemy, court lit rogation, unknown fears and all kinds of disputes relating to property Mahamritunjaya Yantra will protect you from disease, on the one hand and will put off the chances of any accidental death. As for the Kuber Yantra.
It is common knowledge that Goddess Lakshmican be there with any body and every body, but it somebody has Kuber favour with him, then he becomes the possessor of untold wealth and a person who will enjoy all luxuries of life.
Thus this Locket Navratna embedded Sri Yantra locket having in it four powers described above is available only in gold, while the locket with only one power is available both in silver as well as gold.