Made in Japan. K18 product. This is a pendant top featuring an oval-cut natural spinel. Spinel is known as the birthstone for August, and is a color stone that attracts attention for its beauty and rarity. It is characterized by a calm blue color, and emits a deep, chic brilliance. This spinel has a clear color and high transparency, creating a sophisticated impression. It is known as a historically valuable stone, having been used in the British royal crown. Due to its high refractive index and hardness, it shines brightly every time it is exposed to light, highlighting an intellectual and refined beauty. Stamped. Size: Approximately 3 x 4mm Material: K18 yellow gold, 1 spinel 0.15ct The bale is an oval shape with an inner diameter of approximately 3mm.