13.50x13.60mm Trillion Aquamarine & 0.31 CTW Diamond Necklace in 18K White Gold, 17"

This elegant pendant necklace showcases a large trillion-cut aquamarine gemstone measuring 13.50 x 13.60mm as the centerpiece. The trillion cut — a triangular, three-cornered shape — maximizes the aquamarine's natural light-blue to blue-green color and brilliance, giving the stone an open, modern appearance.

The pendant is crafted in 18 karat white gold, which provides a bright, contemporary setting that complements the cool tones of aquamarine beautifully. Diamonds totaling 0.31 carats accent the setting, adding sparkle and contrast to the soft color of the center stone. The piece hangs from a 17-inch chain, a classic length that rests at the collarbone.

Aquamarine is a variety of beryl, prized for its sea-blue color and exceptional clarity. It is the birthstone for March and is associated with calm, clarity, and courage. A stone of this size — over 13mm — represents a substantial and eye-catching gem, appropriate for formal occasions or as an heirloom piece.