The vajra and bell is an important element in Vajrayana practice symbolizing the union of compassion, skillful means and wisdom. The bell here represents the feminine entity upholding the wisdom of emptiness and the vajra representing the masculine entity of upholding compassion and skillful means.
The unison ring here represents the inseparability of wisdom and compassion bound together at the center with the most precious of stones symbolizing strength, clarity and indestructibility.
*each piece is made to order and differ slightly from the image