Natural Saltwater pearl and ruby necklace, Early 20th century This beautiful necklace is composed of a graduated row of 106 natural pearls and 1 cultured pearl (the smallest one near the clasp) measuring from 3 mm to 7.1 mm, to an rectangular clasp set with three ruby square shaped, length approximately 554 mm. The color of these pearls are very unique and rare, not creamy or white but golden cream with green and pink overtones. The certificate is from French laboratory of Paris, the first laboratory in the world (a long before the famous GIA..), it is the official laboratory of the chamber of commerce of Paris, this one cost alone 700 euros.