Founded in 1900, Vernain SA, a family business, owned by the 4th generation has mastered its expertise in diamonds. With more than one century experience, Vernain SA is constantly working to find the best gems worldwide at the best price. Vernain SA mainly deals with jewellery manufactures or watch factories but also can assist in diamond investment. Vernain SA is making sure that all diamonds sold follow a strict ethical process. All diamonds are checked and certified in-house natural.

Golay Fils & Stahl SA was founded in 1837 in Geneva by Auguste Golay Leresche and sold at the turn of the century to Mr. Stahl, hence the name Golay Fils & Stahl. In 1961, the company was acquired by Jacques Wolfgang, already a business associate of the firm, having supplied it with precious stones since the 1930’s. Between 1860 and 1930, the establishment prospered during this grand and lavish period offering its exclusive creations to the jewelry world. Having a retail store in Paris as well as Geneva, Golay Fils & Stahl benefited from a very international clientele. At the turn of the century, Golay Fils & Stahl was named the official jeweller to the royal family of Romania. King Carol I of Romania, a loyal customer, visited the shop in Geneva regularly from 1896 onward. In old ledgers, there are also mentions of purchases by the Prince Damrong of Siam, as well as the Maharajah of Baroda. Jesse Wolfgang, the son of Jacques, took over the firm upon his fathers death in 1976. Having been in the firm since 1968, he was able to lead his team in adding a new dimension to the retail establishment while continuing the trade of diamonds and precious stones, a family tradition of five generations which continues today. Today, Golay Fils & Stahl specialises in the creation of exclusive jewelry, as well as antique jewelry, diamonds, and coloured stones.