Sapphire and diamond ring. Photo Sotheby's

The cushion-shaped sapphire weighing 21.24 carats, flanked by trapeze-cut and round diamonds weighing approximately 2.10 carats, mounted in platinum, size 5¾. Est. 90,000—110,000 USD. Lot Sold 110,500 USD

Pair of sapphire and diamond earrings. Photo Sotheby's

Pear-shaped sapphires weighing approximately 10.85 carats, round and rose-cut diamonds weighing approximately 1.20 carats, mounted in platinum. Est. 12,000—15,000 USD. Lot Sold 26,250 USD

Sapphire and diamond necklace and earrings. Photo Sotheby's

The necklace set with oval sapphires weighing approximately 29.05 carats, round and marquise-shaped diamonds weighing approximately 6.30 carats, mounted in 18 karat white gold, length 17 inches; the earrings set with oval sapphires weighing approximately 8.40 carats, round diamonds weighing approximately 1.50 carats, mounted in platinum. Est. 20,000—30,000 USD. Lot Sold 25,000 USD

Sapphire and diamond ring. Photo Sotheby's

The oval sapphire weighing 7.46 carats, flanked by baguette diamonds weighing approximately 1.55 carats, mounted in platinum, size 7. Est. 15,000—20,000 USD. Lot Sold 22,500 USD

Star sapphire and diamond ring. Photo Sotheby's

The cabochon star sapphire measuring weighing approximately 40.00 carats, framed by tapered baguette diamonds weighing approximately 2.90 carats, mounted in platinum, size 7¼. Est. 15,000—20,000 USD. Lot Sold 20,000 USD

White gold, sapphire and diamond necklace and earrings. Photo Sotheby's

The necklace and earrings set with oval sapphires weighing approximately 35.00 carats, and round diamonds weighing approximately 11.00 carats, length of necklace 16 inches. Est. 10,000—15,000 USD. Lot Sold 20,000 USD

Sapphire and diamond ring. Photo Sotheby's

The emerald-cut sapphire weighing approximately 8.70 carats, flanked by modified shield-shaped diamonds weighing approximately 1.10 carats, mounted in platinum, size 6¼. Est. 15,000—20,000 USD. Lot Sold 20,000 USD

Star sapphire and diamond ring, Circa 1930. Photo Sotheby's

The cabochon star sapphire weighing approximately 75.00 carats, flanked by baguette, old European-cut and single-cut diamonds weighing approximately 1.75 carats, mounted in platinum, size 5. Est. 7,500—10,000 USD. Lot Sold 20,000 USD

Sapphire and diamond bracelet. Photo Sotheby's

Emerald-cut diamonds weighing approximately 12.30 carats, calibré-cut sapphires weighing approximately 22.00 carats, mounted in platinum, length 7¼ inches. Est. 15,000—20,000 USD. Lot Sold 18,750 USD

Gold, silver, sapphire and diamond ring-brooch combination. Photo Sotheby's

The brooch set with round sapphires weighing approximately 7.40 carats, old European-cut, old mine and round diamonds weighing approximately 1.10 carats, circa 1880, with retractable pendant hook, accompanied by a brooch fitting and screwdriver; the gold ring, size 8. With two boxes signed DS Lavender. Est. 5,000—7,000 USD. Lot Sold 10,000 USD

Sapphire and diamond ring, Mauboussin, Paris. Photo Sotheby's

The square-cut sapphire weighing approximately 4.00 carats, flanked by cabochon sapphires, and baguette diamonds weighing approximately .50 carat, mounted in 18 karat gold, size 5¾, signed Mauboussin, Paris, numbered 46607, inscribed 13-V111-1993, French assay mark. Est. 8,000—12,000 USD. Lot Sold 10,000 USD

Pair of sapphire and diamond cluster earclips. Photo Sotheby's

Cushion-shaped sapphires together weighing approximately 9.00 carats, framed by marquise-shaped and round diamonds weighing a total of approximately 5.00 carats, mounted in white gold. Est. 5,000—7,000 USD. Lot Sold 10,000 USD

Sapphire and diamond ring. Photo Sotheby's

The oval sapphire weighing approximately 7.00 carats, framed by round diamonds weighing approximately 2.10 carats, mounted in white gold, size 7¾. Est. 7,500—10,000 USD. Lot Sold 9,375 USD

Pair of sapphire earclips, Aletto Brothers. Photo Sotheby's

Set with pear-shaped and marquise-shaped sapphires weighing approximately 30.00 carats, mounted in 18 karat white gold and platinum, signed Aletto Bros. Est. 6,500—7,500 USD. Lot Sold 8,125 USD

Sapphire and diamond pendant-necklace. Photo Sotheby's

The pear-shaped sapphire weighing approximately 10.00 carats, additionally set with pear-shaped, marquise-shaped and round diamonds weighing approximately 1.00 carat, mounted in platinum, length 16 inches. Est. 6,000—8,000 USD. Lot Sold 7,500 USD

Pair of sapphire and diamond earclips. Photo Sotheby's

The heart-shaped sapphires weighing approximately 5.55 carats, round diamonds weighing approximately 3.35 carats, mounted in platinum and 18 karat white gold. Est. 6,000—8,000 USD. Lot Sold 7,500 USD

Pair of sapphire and diamond pendant-earclips. Photo Sotheby's

Cushion-shaped sapphires weighing approximately 9.25 carats, round diamonds weighing approximately 3.50 carats, mounted in white gold. Est. 7,000—9,000 USD. Lot Sold 7,500 USD

Sotheby's. Important Jewels. 03 Feb 10. New York www.sothebys.com