I had the pleasure of viewing the upcoming jewellery sale at Bonhams on New Bond Street this week. I received such a warm greeting from an old colleague at the front desk, and proceeded to head to the viewing room. Now, some might say they are too scared or intimidated to walk through these halls, let alone have the audacity to look at a jewellery sale on display. But here’s the secret… It’s open to everyone! And you should take advantage of these viewings. Think of it as a free museum entrance with endless exhibitions of exceptional goods, which have been, more often than not, hidden away from the public for generations.
I had the pleasure of being shown some highlights of this 118 lot sale.
These included a pair of Castellani sapphire bracelets from 1865.
These bracelets of Byzantine inspiration really are beautifully made. Castellani is one of the best when it comes to archaeological revival style jewellery and these pieces are no exception. “To have one bracelet is wonderful but to have two is very rare” said Jean Ghika, Global Head of Jewellery. With an estimate of £25,000 – 35,000, I am sure they will find a new home.
Still in the antique jewellery section of the sale are these spectacular “Night and Day” diamond earrings.
Still in their original box, these earrings can be altered depending on the mood. One can wear the diamonds for a dash of dazzle or cover them up with the cannetille beads. It is an extraordinary piece and statement to earlier craftmanship. They have an estimate of £12,000 – 18,000.
It should come as no surprise that my eye was immediately drawn to an early 20th century Cartier piece: an enamel and diamond fob watch circa 1910.
The delicate purple guilloché enamel is highlighted by a central diamond and a diamond border. The reverse is everything that makes Cartier watches: blue steeled hands, engine-turned dial and attention to detail. The very attractive estimate of £6,000 – 8,000 is bound to call out collectors.
Amongst the highlights is a sapphire and diamond cluster ring, circa 1890 with an estimate of £60,000 – 80,000. Why the price tag? That would be due to the origin of the sapphire: Kashmir with no evidence of treatment. Though a little abraided on the facet edges, a quick repolish would restore this stone and ring to its original glamourous state.
This piece shows once more the importance of getting gems certificated, as origin or colour and clarity can affect its value dramatically. This is even more apparent with the “Toi et Moi” blue and pink diamond crossover ring by Mouawad.
Both diamonds weigh a little over 5 carats, natural Fancy Intense Blue colour, VVS2 clarity and natural Fancy Purple-Pink colour, I1 clarity.
Bonhams says: “It is estimated that as little as 1 in 10,000 gem-quality diamonds extracted from the Earth’s crust show noticeable colour and of these stones, an exceedingly small percentage are blue or pink. The majority of these rare marvels of nature are under 2.00 carats in weight and stones exceeding 5.00 carats, are even rarer. Stones with high intensity colour grades such as ‘Fancy Deep’, ‘Fancy Vivid’ and ‘Fancy Intense’ are considered some of the most desirable colour classifications by GIA.” Due to its rarity the estimate for this ring is £1,000,000 – 1,500,000.
The Bonhams London Jewels sale that was held on 13th June garnered extraordinary results, with a total of £6,590,562, with 78% sold by lot.
Aurélia has over twenty years’ experience in the auction industry. She started her career in Business Development and Client Services at Christie’s and Sotheby’s Paris.