Robuta

https://www.sothebys.com/en/buy/auction/2024/royal-noble-jewels/gem-set-longchain-circa-1910 attributed to Koch | Gem set longchain, circa 1910 | Royal & Noble attributed koch gem set longchain https://www.christies.com/zh/lot/lot-5575523 A 19TH CENTURY GOLD LONGCHAIN NECKLACE | Christie's A 19TH CENTURY GOLD LONGCHAIN NECKLACE 19th century gold longchain necklace christie https://www.christies.com/en/lot/lot-5991186 A DIAMOND-SET LONGCHAIN | Christie's A DIAMOND-SET LONGCHAIN diamond set longchain christie https://www.christies.com/en/lot/lot-6430865 MULTI-GEM AND DIAMOND LONGCHAIN NECKLACE | Christie's MULTI-GEM AND DIAMOND LONGCHAIN NECKLACE multi gem diamond longchain necklace christie