Cultured pearls, rubies, black diamonds and diamond necklace and matching ring, Mikimoto. Estimate HK$120,000 - 250,000 (US$15,400 - 32,000). Photo Tiancheng International

The necklace composed of double-stranded greyish cultured pearls measuring approximately 11.98 to 9.58mm, highlighted by circular-cut rubies, black sapphires and brilliant-cut diamonds together weighing approximately 4.90, 16.65 and 4.85 carats respectively, length approximately 388mm; the ring centring on a greyish coloured with pink hue cultured pearl measuring approximately 13.97mm, flanked by marquise-, pear-shaped and brilliant-cut diamonds together weighing approximately 2.95 carats, mounted in platinum and 18 karat white gold, signed. Accompanied with an original signed box. Ring size: 4¾ (2) 

The King of Pearls
Born in 1858 in the town of Toba on Japan’s Shima Peninsula, Kokichi Mikimoto grew a lifelong fondness in pearl. Natural pearls were harvested from akoya pearl oysters at the time, resulting of depletion by overharvesting. He had pledged himself to protect and propagate stocks of akoya pearl oysters and investigate the possibility of producing cultured pearls. After 10 years of researches, he overcame all the difficulties to become the first in the world to successfully culture a semi-spherical pearl in Ojima Island (now known as Mikimoto Pearl Island) near Toba in 1893. This marked the first time that a pearl was produced from a pearl oyster due to human intervention. To glorify Kokichi Mikimoto’s dedication and achievement to the development of cultured pearls, he was respected as the King of Pearls.
In 1899, Japan’s first pearl specialty boutique, the MIKIMOTO Pearl Store was opened in Ginza, Tokyo. In 1913, the first overseas MIKIMOTO Pearl Store opened in London. Cultured pearls were being introduced to the world of jewellery and MIKIMOTO has become synonymous with high-quality cultured pearls. Nowadays, MIKIMOTO is one of the world’s leading fine jewellers, with business reaching worldwide to New York, London, Paris, Seoul, Kuala Lumpur, Bangkok, Shanghai and Hong Kong.

Tiancheng International. HONG KONG AUTUMN AUCTION, Jewellery and Jadeite