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Diamanten bei Koller Auktionen

ELEGANCE
AND TECHNICAL
SOPHISTICATION


A RARE DAYTONA ‘PAUL NEWMAN’, GENEROUSLY PROPORTIONED DIAMONDS OF EXCEPTIONAL PURITY, AS WELL AS SOME STUNNING COLOURED STONES, ARE AMONG THE TREASURES OF OUR UPCOMING JEWELLERY AND WATCHES AUCTIONS.

Introduced in 2005 as the successor to reference 3970 and produced until around 2010, Patek Philippe’s reference 5970 is the company’s last ‘Lemania’ perpetual calendar chronograph, bearing the Geneva seal on its movement.

Rolex Daytona

ROLEX
DAYTONA

'Paul Newman'
Stainless steel, circa 1971
Estimate:
CHF 100 000 / 200 000
Rolex Oyster Oberservatory Chronometer Kew A.

ROLEX
OYSTER

Oberservatory Chronometer
'Kew A', circa 1954
Estimate:
CHF 18 000 / 36 000

A Rolex Daytona comes directly from its original owner. In the early 1970s, watchmaker Geze outfitted the Swiss national ski team, supplying them with Rolex Daytonas. Another rare Rolex features an Observatory-certified movement in a series of just 24 examples of reference 6210 in 18-karat gold, its dial in superb original condition.

Ceylon-Saphir-Diamant-Ring, RAVE


CEYLON SAPPHIRE
AND DIAMOND RING, RAVE

Set with an oval
sapphire of 33.83 ct
Estimate:
CHF 50 000 / 80 000
Diamant-Ring


DIAMOND
RING

Set with a pear-shaped diamond
of 14.73 ct, H/VS2
Estimate:
CHF 130 000 / 190 000
Fancy-Yellow-Diamant-Ring


FANCY YELLOW
DIAMOND RING

Set with a brilliant-cut diamond of 10.61 ct,
Fancy Yellow/VS1
Estimate:
CHF 70 000 / 100 000

Central to the jewellery auction are extraordinary diamonds and exceptional coloured stones. Highlights include a 6 ct brilliant diamond of top D colour and IF clarity, and an 18 ct emerald-cut diamond set in a commanding ring. Another star lot is an important sapphire brooch, showcasing an unheated Ceylon sapphire of approximately 110 ct. We are also offering a striking cocktail ring by RAVE, set with an unheated Ceylon sapphire of over 33 ct.

Diamant-Collier und Saphir-Brosche

DIAMOND
NECKLACE

Probably circa 1880, circa 18.0 ct
Estimate:
CHF 12 000 / 18 000

SAPPHIRE
BROOCH

Ceylon, circa 110 ct,
unheated, circa 1910
Estimate:
CHF 130 000 / 180 000
Ungefasster Brillant

UNMOUNTED
DIAMOND

6.03 ct, D/IF
with GIA certificate
Estimate:
CHF 200 000 / 300 000

DIAMOND
PENDANT

Set with a pear-shaped
diamond of 13.63 ct,
H/VS2. With SSEF certificate
Estimate:
CHF 120 000 / 180 000
Patek Philippe. Chronograph mit Ewigem Kalender.


PATEK
PHILIPPE

Chronograph with perpetual calendar
18K white gold
Estimate:
CHF 75 000 / 150 000
Audemars Piguet. Royal Oak Ceramic Chronograph.


AUDEMARS
PIGUET

Royal Oak Ceramic Chronograph
Black ‘Grande Tapisserie’ dial
Estimate:
CHF 60 000 / 120 0000
Omega Seamaster.


OMEGA
SEAMASTER

Prototype 1000 'Ploprof 0',
circa 1968, stainless steel
Estimate:
CHF 60 000 / 120 000
Jakob Zeijl, Koller Auctions

CONTACT FOR
INFORMATION
AND CONSIGNMENTS:


JAKOB ZEIJL

Head of Department
Jewellery

zeijl@kollerauctions.com
+41 44 445 63 60
Uwe Vischer, Koller Auctions

CONTACT FOR
INFORMATION
AND CONSIGNMENTS:


UWE VISCHER

Head of Department
Watches

vischer@kollerauctions.com
+41 44 445 63 59