A diamond solitaire ring, Ruser. Estimate: $400,000-600,000. Photo: Courtesy of Bonhams.

NEW YORK, NY.- In advance of the summer season, Bonhams looks forward to presenting a stand-out auction of Fine Jewelry on June 17 at its Manhattan saleroom. 

Leading the auction will be a Ruser diamond solitaire ring, set with a 9.08 carat, cut cornered, rectangular step-cut diamond with an estimated 1.50 carats of tapered, baguette-cut diamond shoulders (est. $400,000-600,000). Bonhams is pleased to offer this ring among nearly 60 lots of jewellery from the collection of Los Angeles luminary Onnalee Olson Doheny.

A diamond solitaire ring, Ruser. Photo: Courtesy of Bonhams.

set with a cut cornered rectangular step-cut diamond, weighing 9.08 carats, with tapered baguette-cut diamond shoulders; signed Ruser, estimated remaining diamond weight: 1.50 carats; mounted in platinum; size: 5 1/4. Estimate US$ 400,000 - 600,000 (€290,000 - 440,000).

Mrs. Doheny (1919-2013) was a Los Angeles native, widely recognised for her extensive and generous philanthropic work throughout the community. Among additional highlights on offer from her collection is a pair of Ruser diamond earclips, each designed as an articulated round brilliant-cut diamond cascade, at a weight of 20.00 carats (est. $30,000-50,000).

A pair of diamond earclips, Ruser. Photo: Courtesy of Bonhams.

each designed as an articulated round brilliant-cut diamond cascade; estimated total diamond weight: 20.00 carats; mounted in platinum; length: 1 3/4in. Estimate US$ 30,000 - 50,000 (€22,000 - 37,000).

Susan Abeles, Bonhams' Head of U.S. Jewellery, commented, "This sale provides a rare opportunity to acquire a ring by legendary jewellery designer William Ruser, one of the most sought after jewellers in Hollywood in the 1950s and 60s, who was known for his fine craftsmanship. Bonhams is honoured to offer this ring and many other beautiful pieces from the collection of Onnalee Olson Doheny."

The sale will also feature fantastic diamond rings of note from various owners, such as a 7.09 carat diamond solitaire ring, set with a cut-cornered, rectangular step-cut, natural faint pink diamond, flanked by 1.10 carats of tapered baguette-cut diamonds (est. $240,000-300,000); a fancy coloured diamond and diamond ring, set with a 5.01 carat cushion modified brilliant-cut fancy vivid yellow diamond, within a crossover mounting with 3 carats of pavé set colourless and yellow diamonds (est. $225,000-325,000); and a ruby and diamond ring centering a 7.61 carat oval-cut diamond, flanked by 2 carats of half moon-cut diamonds with circular-cut diamond trim (est. $150,000-250,000). Diamond solitaire rings by Tiffany & Co. (est. $65,000-85,000) and Cartier (est. $35,000-45,000) will also be offered.

A diamond solitaire ring. Photo: Courtesy of Bonhams.

set with a cut-cornered rectangular step-cut natural faint pink diamond, weighing 7.09 carats, flanked by tapered baguette-cut diamonds; estimated remaining diamond weight: 1.10 carats; mounted in platinum; size 6 1/4. Estimate US$ 240,000 - 300,000 (€180,000 - 220,000). 

Accompanied by GIA report #13396108, dated March 28, 2004, stating the center diamond as: natural faint pink color, VS1 clarity.

Further with a supplemental letter from GIA dated January 25, 2013 stating that the diamond in the above referenced report has been determined to be a Type IIA diamond.

A fancy colored diamond and diamond ring. Photo: Courtesy of Bonhams.

set with a cushion modified brilliant-cut fancy vivid yellow diamond, weighing 5.01, carats within a pavé set colorless and yellow diamond crossover mounting;estimated remaining diamond weight: 3.00 carats; mounted in platinum; size 5 (small yellow diamonds not tested for origin of color). Estimate US$ 225,000 - 325,000 (€160,000 - 240,000)

Accompanied by GIA report #10843404, dated September 29, 1999, stating the central diamond as: natural fancy vivid yellow color, VS2 clarity.

A ruby and diamond ring. Photo: Courtesy of Bonhams.

centering an oval-cut ruby, weighing 7.61 carats, flanked by half moon-cut diamonds, with circular-cut diamond trim; estimated total diamond weight: 2.00 carats; mounted in platinum; size 5 3/4. Estimate US$ 150,000 - 250,000 (€110,000 - 180,000)

Accompanied by Gübelin Gem Lab report #0211079, dated November 19, 2002, stating the ruby as: Burmese (Myanmar) origin, with no indications of thermal enhancement.

A diamond solitaire ring, Tiffany & Co. Photo: Courtesy of Bonhams.

set with a round brilliant-cut diamond, weighing 3.22 carats, with bullet-shaped diamond shoulders; signed Tiffany & Co., with signed box; mounted in platinum; size 6. Estimate US$ US$ 65,000 - 85,000 (€48,000 - 62,000)

Accompanied by GIA report #70983506, dated April 24, 2014, stating the center diamond as: E color, VS1 clarity.

A diamond solitaire ring, Cartier. Photo: Courtesy of Bonhams.

set with a cut-cornered rectangular step-cut diamond, weighing 3.03 carats, flanked by trapezoid and bullet-shaped diamond shoulders; signed Cartier, no. 894420; mounted in platinum; size 5. Estimate US$ 35,000 - 45,000 (€26,000 - 33,000)

Accompanied by GIA report #2155982176, dated March 10, 2014, stating the diamond as: G color, VS2 clarity.

Extraordinary necklaces, brooches, ear clips and bracelets are also bountiful in the sale, with many pieces signed. Van Cleef & Arpels offerings include a natural pearl and diamond brooch, 1950, designed as a pavé-set diamond floral motif cluster (est. $140,000-160,000) and a pair of 'Mystery-Set' sapphire and diamond earclips, with each designed as a calibré-cut sapphire flowerhead, centering circular-cut diamond pistils (est. $115,000-125,000). A Cartier gem-set and diamond 'Meli Melo" necklace and pendant earrings (est. $30,000-50,000) and a Bulgari peridot, citrine and diamond bracelet, designed as a wide cuff (est. $30,000-50,000) also stand out.

A natural pearl and diamond brooch, Van Cleef & Arpels, 1950. Photo: Courtesy of Bonhams.

designed as a pavé-set diamond floral cluster, enhanced by round white natural pearls set with circular-cut diamonds, suspending a baguette-cut diamond tassel, terminating in natural pearl drops from circular-cut diamond caps; signed Van Cleef & Arpels, no. NY18218, with signed box; estimated total diamond weight: 10.00 carats; mounted in platinum; length: 3 3/4in. (smaller pearls not tested for origin). Estimate US$ 140,000 - 160,000 (€100,000 - 120,000)

Accompanied by Swiss Gemological Institute (SSEF) report #67297, dated March 21, 2013, stating seven drop pearls as: natural. 

A pair of 'Mystery-Set' sapphire and diamond earclips, Van Cleef & Arpels. Photo: Courtesy of Bonhams.

each designed as a calibré-cut sapphire flowerhead, centering circular-cut diamond pistils; signed Van Cleef & Arpels, no. 36852, with French assay marks and maker's marks; estimated total diamond weight: 2.60 carats; mounted in eighteen karat gold and platinum; diameter: 1 3/8in. Estimate US$ 115,000 - 125,000 (€84,000 - 92,000)

Additionally sure to spark interest is a fancy coloured diamond and colourless diamond necklace, featuring 23 pear shaped fancy light and light yellow diamonds within a surround of circular-cut diamonds, accentuated with 10 pear shaped diamonds within a mount of circular cut diamonds (est. $215,000-250,000).

A fancy colored diamond and diamond necklace. Photo: Courtesy of Bonhams.

comprising twenty-three pear shaped fancy light and light yellow diamonds, each within circular-cut diamond surrounds, spaced by circular-cut diamond links, suspending pear-shaped diamonds; colored diamonds weigh 40.43 carats total; estimated remaining diamond weighing: 11.50 carats; mounted in platinum and eighteen karat gold; length: 17in. Estimate US$ 215,000 - 250,000 (€160,000 - 180,000) 

Accompanied by GIA report #15853890, dated April 24, 2007, stating the 1.52 carat diamond as: natural fancy yellow.

Accompanied by GIA report #2151984230, dated March 21, 2014, stating the diamond measuring approximately 8.65 x 5.79mm as: natural fancy light to fancy yellow.

Accompanied by GIA report #315811353, dated April 19, 2007, stating the 1.01 carat diamond as: natural fancy light yellow.

Accompanied by GIA report #2151984235, dated March 21, 2014, stating the diamond measuring approximately 7.55 x 4.94mm as: natural very light to light yellow.

Accompanied by GIA report #1156984239, dated March 21, 2014, stating the diamond measuring approximately 7.93 x 4.59mm as: natural fancy light to fancy yellow.

Accompanied by GIA report #6157984241, dated March 21, 2014, stating the diamond measuring approximately 8.60 x 5.96mm as: natural fancy light to fancy yellow.

Accompanied by GIA report #1156984244, dated March 21, 2014, stating the diamond measuring approximately 9.80 x 6.42mm as: natural light to fancy light yellow.

Accompanied by GIA report #2151984252, dated March 21, 2014, stating the diamond measuring approximately 8.95 x 5.96mm as: natural fancy light to fancy yellow.

Accompanied by GIA report #2151984253, dated March 21, 2014, stating the diamond measuring 7.01 x 4.69mm as: natural light yellow.

Accompanied by GIA report #2151984257, dated March 21, 2014, stating the diamond measuring 6.74 x 4.23mm as: natural light yellow.

Accompanied by GIA report #1156984203, dated March 21, 2014, stating the diamond measuring 9.74 x 6.14mm as: natural fancy light to fancy yellow.

Accompanied by GIA report #2151984207, dated March 21. 2014, stating diamond measuring approximately the 8.71 x 5.86mm as: natural fancy light to fancy yellow.

Accompanied by GIA report #1156984208, dated March 21, 2014, stating the diamond measuring approximately 8.69 x 5.44mm as: natural light to fancy light yellow.

Accompanied by GIA report #6157984224, dated March 21, 2014, stating the diamond measuring approximately 9.64 x 6.06mm as: natural fancy light to fancy yellow.

Accompanied by GIA report #1156984210, dated March 21, 2014, stating the diamond measuring approximately 6.92 x 4.21mm as: natural light yellow.

Accompanied by GIA report #6157984214, dated March 21, 2014, stating the diamond measuring approximately 8.17 x 5.36mm as: natural light to fancy light yellow.

Accompanied by GIA report #6157984216, dated March 21, 2014, stating the diamond measuring approximately 6.90 x 4.16mm as: natural light yellow.

Accompanied by GIA report #2151984716, dated March 21, 2014, stating the diamond measuring approximately 13.45 x 7.71mm as: natural light to fancy light yellow.

Accompanied by GIA report #2151984218, dated March 21, 2014, stating the diamond measuring approximately 6.72 x 4.45mm as: natural light yellow.

Accompanied by GIA report #2151984219, dated March 21, 2014, stating the diamond measuring approximately 7.02 x 4.53mm as: natural very light to light yellow.

Accompanied by GIA report #2151984232, dated March 21, 2014, stating the diamond measuring approximately 6.46 x 4.06mm as: natural light yellow.

Accompanied by GIA report #2151984229, dated March 21, 2014, stating the diamond measuring approximately 11.76 x 7.03mm as: natural light to fancy light yellow.

Accompanied by GIA report # 1156984225, dated March 21, 2014, stating the diamond measuring 12.07 x 7.33mm as: natural light to fancy light yellow.

Virginia Salem, the Director of the Jewellery Department at Bonhams in New York, commented, "We are excited to offer such a comprehensive collection of fine signed jewels for June."