170 lots

LOT 860

Important Modern & Vintage Jewels Geneva, Nov 11, 2019

SAPPHIRE AND DIAMOND BALLERINA RING

Oval-cut sapphire, tapers, baguette and circular-cut diamonds, platinum (French mark), 1960s, size 51

CHF 10,000 - 15000

EUR 9,000 - 13500

USD 10,000 - 15000

Brand Unsigned

Year circa 1960s

Sold: CHF 11,250

LOT 861

Important Modern & Vintage Jewels Geneva, Nov 11, 2019

SAPPHIRE RING

Oval-cut sapphire of 3.33 carats, circular-cut sapphires and diamonds, 14K (585) gold, size 52 GRS 2011, report no GRS2011-021601, 3.33 carats, Sri Lanka, no indication of thermal treatment

CHF 13,000 - 15000

EUR 11,700 - 13500

USD 13,000 - 15000

Brand Unsigned

Year circa 2011

Sold: CHF 15,000

LOT 862

Important Modern & Vintage Jewels Geneva, Nov 11, 2019

NATURAL PEARL AND DIAMOND EAR PENDANTS

Baroque drop-shaped and button-shaped natural pearls, old-cut diamonds, gold and platinum, 6.5 cm GIA, 2019, report no. 105851, saltwater natural pearls SSEF 2019, report no 105851, 20 natural pearls, the analysed properties confirm the authenticity of these saltwater natural pearls

CHF 50,000 - 80000

EUR 45,000 - 80000

USD 50,000 - 80000

Brand Unsigned

Year circa 2019

LOT 863

Important Modern & Vintage Jewels Geneva, Nov 11, 2019

ART DECO DIAMOND BRACELET

Circular, square, baguette, triangular and fancy-cut diamonds, platinum (French mark), 1930s, 19 cm, no 654

CHF 60,000 - 80000

EUR 55,000 - 73000

USD 60,000 - 80000

Brand Unsigned

Year circa 1930s

Sold: CHF 65,000

LOT 864

Important Modern & Vintage Jewels Geneva, Nov 11, 2019

DIAMOND LINE BRACELET, BOUCHERON

Square-cut diamonds, platinum (French mark), 1960s, 18 cm, signed Boucheron

CHF 40,000 - 50000

EUR 36,000 - 45000

USD 40,000 - 50000

Brand Boucheron

Year circa 1960s

Sold: CHF 50,000

LOT 865

Important Modern & Vintage Jewels Geneva, Nov 11, 2019

SAPPHIRE AND DIAMOND “ISTAMBOUL” EARRINGS, CARTIER

Cushion-shaped sapphires, baguette-cut diamonds, gold and platinum, 2000s, 2.5 cm, signed Cartier, no 702269, Cartier red fitted case Gübelin 2017, report no 17090112/1 and 2, Madagascar, no indication of heating

CHF 50,000 - 60000

EUR 45,000 - 55000

USD 50,000 - 60000

Brand Cartier

Year circa 2000s

Sold: CHF 56,250

LOT 866

Important Modern & Vintage Jewels Geneva, Nov 11, 2019

DIAMOND RING

Old cushion-shaped diamond, 11.88 carats, platinum, size 52

CHF 80,000 - 120000

EUR 73,000 - 116000

USD 80,000 - 120000

Brand Unsigned

LOT 867

Important Modern & Vintage Jewels Geneva, Nov 11, 2019

DIAMOND BRACELET, CARTIER

Square-cut diamonds, platinum, 1930s, 17 cm, signed Cartier, no 817594, red Cartier fitted case

CHF 150,000 - 200000

EUR 130,000 - 180000

USD 150,000 - 200000

Brand Cartier

Year circa 1930s

LOT 868

Important Modern & Vintage Jewels Geneva, Nov 11, 2019

SAPPHIRE AND DIAMOND RING, BULGARI

Cushion-shaped sapphire of 17.52 carats, marquise and circular-cut diamonds, platinum (900) and gold, 1960s, signed Bvlgari SSEF 2017, report no 95656, 17.52 carats, Burma (Myanmar), no indications of heating

CHF 200,000 - 300000

EUR 180,000 - 270000

USD 200,000 - 300000

Brand Bulgari

Year circa 1960s

Sold: CHF 237,500

LOT 869

Important Modern & Vintage Jewels Geneva, Nov 11, 2019

EXCEPTIONAL PYROPE SPESSARTITE GARNET RING

Cushion-shaped pyrope spessartite color change garnet of 25.81 carats, trapeze and circular-cut diamonds, platinum and gold, 2000s, size 53 GIA 2018, report no 1308956787, Pyrope Spessartite Garnet, this stone exhibits a change of color when viewed under daylight or fluorescent vs incandescent light. GIA Notable letter 2018 GRS 2018, report no 2018-111938, Pyrope Spessartite Garnet, color shift from greenish brownish-pink to vivid red, Madagascar, no indication of thermal treatment

CHF 250,000 - 300000

EUR 230,000 - 270000

USD 250,000 - 300000

Brand Unsigned

Year circa 2000s

Sold: CHF 275,000

 Unprecedented, extremely rare, one of a kind, GRS and GIA certified including notable later, investment grade natural 25.81 carats pyrope-spessartine Madagascar garnet with unbelievable color change (Alexandrite effect), incredible sparkle and clarity is absolutely beyond compare. This phenomenal gem is perfectly presented in a handmade platinum and 18k rose diamond ring. Color Change Garnet is definitely one of the rarest and unique gemstone. Any gem that changes color is a rare find and sought after by collectors. This particular gem is more so called Chameleon gem which is much rarer and usually comes in a size 2-3 carats which makes this an absolutely unique find. Color change garnets are actually a teal blue, greenish-blue or green under daylight or fluorescent light, changing to reddish-purple/purplish-red under incandescent light. The stronger the color change and the more beautiful red color is in incandescent light the more valuable is the gem.