This appears to be a striking custom lab-grown diamond pendant, likely crafted in a precious metal like gold, given the setting. The design features a large, stylized capital letter 'T', completely paved with a dense arrangement of brilliant, lab-grown diamonds, including both round and prominent baguette cuts, giving it a heavy, luxurious, and highly detailed texture.
The most distinctive feature is the enameled tiger's head attached to the top, serving as the bail or an integrated design element. This suggests a bold, personalized piece, possibly for someone with the initial 'T' or someone associated with the tiger symbol. The use of lab-grown diamonds offers a sustainable yet high-carat look.