Important Jewels
Updated October 17, 2026
| Date | November 1, 2026 at 11:00 AM EST |
| Type | Online only |
| Auction house | Grogan & Company |
| Location | Boston, Massachusetts, 02114 · more auctions in Boston |
| Lots | 148 |
| Estimates | $700 – $200,000 |
What's in this auction
148 lots, mostly jewelry & watches (148). 148 lots have photos. Pre-sale estimates $700–$200,000 across 148 priced lots. Bidding is online through the auction house's catalog, closing November 1, 2026.
Highest-estimated lots
- Platinum, Kashmir Sapphire, and Diamond Ring — est. $100,000–$200,000
- TIFFANY & CO., LOUIS COMFORT TIFFANY 18K Gold, Platinum, Aquamarine, and Diamond Necklace — est. $30,000–$50,000
- Platinum, Colombian Emerald, and Diamond Ring — est. $20,000–$40,000
- Platinum, 18K Gold, Fancy Light Yellow Diamond, and Diamond Pendant Necklace — est. $15,000–$25,000
- Platinum and Diamond Ring — est. $12,000–$22,000
From the auction house
Upcoming auction: Important Jewels. Full catalog and bidding: view on invaluable .
View the full catalog and register to bid →
In this auction (148 lots)
Categories: Jewelry & Watches (148)
- Lot 1 — Silver-Topped-Gold and Diamond Starburst Pendant/Brooch
- Lot 2 — Platinum and Diamond Brooch
- Lot 3 — Platinum, Pearl, and Diamond Necklace
- Lot 4 — TIFFANY & CO. Platinum and Diamond Pendant Watch
- Lot 5 — Platinum-Topped-Gold and Diamond Bracelet
- Lot 6 — Platinum-Topped-Gold and Diamond Brooch
- Lot 7 — 14K Gold, Turquoise, and Diamond Ring
- Lot 8 — TIFFANY & CO. 14K Gold, Turquoise, and Diamond Horseshoe Brooch
- Lot 9 — TIFFANY & CO., LOUIS COMFORT TIFFANY 18K Gold, Platinum, Aquamarine, and Diamond Necklace
- Lot 10 — UDALL & BALLOU Platinum, Aquamarine, and Diamond Brooch
- Lot 11 — Art Deco Platinum and Diamond Earring Pendants
- Lot 12 — Art Deco Platinum and Diamond Bracelet
- Lot 13 — GARRARD Art Deco Platinum, Emerald, and Diamond Brooch
- Lot 14 — Art Deco Platinum, Emerald, and Diamond Bracelet
- Lot 15 — Platinum, 14K Gold, Diamond, and Emerald Earrings
- Lot 16 — Platinum, Diamond, and Emerald "Toi et Moi" Ring
- Lot 17 — Platinum and Diamond Line Bracelet
- Lot 18 — TIFFANY & CO. Art Deco Platinum and Diamond Dress Clips/Brooch
- Lot 19 — Platinum, Kashmir Sapphire, and Diamond Ring
- Lot 20 — Platinum, Colombian Emerald, and Diamond Ring
- Lot 21 — Platinum, Colombian Emerald, and Diamond Ring
- Lot 22 — DAVID WEBB 18K Gold, Platinum, Diamond, and Enamel Brooch
- Lot 23 — OSCAR HEYMAN 18K Gold, Sapphire, and Diamond Bracelet
- Lot 24 — fTIFFANY & CO., SCHLUMBERGER 18K Gold Bracelet
- Lot 25 — TIFFANY & CO., SCHLUMBERGER 18K Gold Necklace
- Lot 26 — TIFFANY & CO., SCHLUMBERGER 18K Gold, Diamond, and Ruby 'Ibex' Brooch
- Lot 27 — CARTIER 14K Gold, Citrine, Ruby, and Diamond Brooch
- Lot 28 — CARTIER 18K Gold and Gemset Suite
- Lot 29 — 18K Gold, Sapphire, and Diamond Bracelet
- Lot 30 — MARCUS & CO. 14K Gold and Black Opal Bracelet
- Lot 31 — TIFFANY & CO. 18K Gold and Sapphire Earclips
- Lot 32 — FRANK GARDNER HALE 18K Gold and Tourmaline Brooch
- Lot 33 — 14K Gold, Ruby, and Diamond Ring
- Lot 34 — BLACK, STARR & FROST 18K Gold and Diamond Earrings
- Lot 35 — 22K Gold and Sapphire Ring
- Lot 36 — ILIAS LALAOUNIS 18K Gold, Diamond, and Ruby Bracelet
- Lot 37 — ILIAS LALAOUNIS 22K Gold Necklace
- Lot 38 — ILIAS LALAOUNIS 18K Gold and Diamond Bracelet
- Lot 39 — ILIAS LALAOUNIS 18K Gold and Diamond Bracelet
- Lot 40 — ZOLOTAS 22K Gold Bangle Bracelet
- Lot 41 — ZOLOTAS 22K Gold Bracelet
- Lot 42 — DAVID WEBB 18K Gold Ring
- Lot 43 — ZOLOTAS 18K Gold and Diamond Ring
- Lot 44 — BUCCELLATI 18K Gold and Ceylon Sapphire Ring
- Lot 45 — Platinum-Topped-Gold, Sapphire, and Diamond Ring
- Lot 46 — Platinum, Ceylon Sapphire, and Diamond Ring
- Lot 47 — Platinum, 18K Gold, Fancy Light Yellow Diamond, and Diamond Pendant Necklace
- Lot 48 — Platinum and Diamond Ring
- Lot 49 — Platinum and Diamond Ring
- Lot 69 — CARTIER 18K Gold 'Pharaon' Bracelet
- Lot 50 — Platinum and Diamond Ring
- Lot 51 — Platinum, 14K Gold, and Diamond Pendant Necklace
- Lot 52 — 14K Gold and Diamond Ring
- Lot 53 — Platinum and Diamond Ring
- Lot 54 — 18K Gold, Platinum, Emerald, and Diamond Brooch
- Lot 55 — Platinum, Emerald, and Diamond Ring
- Lot 56 — Platinum, Emerald, and Diamond Ring
- Lot 57 — Attributed to HARRY WINSTON Platinum, Sapphire, and Diamond Eternity Band
- Lot 58 — 18K Gold, Sapphire, and Diamond Ring
- Lot 59 — 18K Gold, Sapphire, Ruby, and Diamond Earclips
- Lot 60 — 18K Gold, Sapphire, and Diamond Brooch
- Lot 61 — SEAMAN SCHEPPS 18K Gold and Diamond 'Astro' Necklaces
- Lot 62 — 18K Gold and Diamond Ring
- Lot 63 — TIFFANY & CO., SCHLUMBERGER 18K Gold Ring
- Lot 64 — 14K Gold and Emerald Bracelet
- Lot 65 — TIFFANY & CO., PALOMA PICASSO 18K Gold Bracelet
- Lot 66 — TIFFANY & CO., PALOMA PICASSO 18K Gold Necklace
- Lot 67 — BVLGARI 18K Gold and Coral Pendant
- Lot 68 — TIFFANY & CO., ELSA PERETTI 18K Gold and Nephrite 'Bean' Bracelet
- Lot 70 — TIFFANY & CO. 18K Gold, Enamel, and Gemset Fish Brooch
- Lot 71 — TIFFANY & CO., SCHLUMBERGER 18K Gold Hedgehog Brooch
- Lot 72 — 14K Gold, Cultured Pearl, Diamond, and Coral Brooch
- Lot 73 — E. WOLFE & CO. 18K Gold, Pearl, and Diamond Brooch
- Lot 74 — SEAMAN SCHEPPS 18K Gold, Mother-of-Pearl, and Cultured Pearl 'Turbo' Shell Earclips
- Lot 75 — SEAMAN SCHEPPS 14K Gold, Rock Crystal, Diamond, and Onyx Earclips
- Lot 76 — Platinum and Diamond Ring
- Lot 77 — Platinum and Diamond Ring
- Lot 78 — Platinum and Diamond Ring
- Lot 79 — 14K Gold and Diamond Stud Earrings
- Lot 80 — Platinum and Diamond Stud Earrings
- Lot 81 — 18K Gold, Emerald, and Diamond Brooch
- Lot 82 — Silver-Topped-Gold and Diamond Starburst Pendant/Brooch
- Lot 83 — Silver-Topped-Gold and Diamond Brooch
- Lot 84 — Silver and Diamond Brooch
- Lot 85 — Silver-Topped-Gold, Emerald, Diamond, and Ruby Dragonfly Brooch
- Lot 86 — Platinum, Diamond, and Sapphire Ring
- Lot 87 — Platinum and Diamond Ring
- Lot 88 — Platinum and Diamond Ring
- Lot 89 — Platinum and Diamond Ring
- Lot 90 — 14K Gold and Diamond Ring
- Lot 91 — Platinum and Diamond Ring
- Lot 92 — Platinum and Diamond Brooch
- Lot 93 — 18K Gold and Diamond Earclips
- Lot 94 — ORLANDA 18K Gold, Platinum, and Diamond Earclips
- Lot 95 — TIFFANY & CO. 18K Gold Brooch
- Lot 96 — CARTIER 18K Gold Ring
- Lot 97 — CARTIER 14K Gold Bracelet
- Lot 98 — TIFFANY & CO. 18K Gold Necklace
- Lot 99 — TIFFANY & CO. 14K Gold, Sapphire, and Diamond Dress Clips
- Lot 100 — 18K Gold, Sapphire, and Aquamarine Brooch
- Lot 101 — 14K Gold, Ruby, Cultured Pearl, and Diamond Bracelet
- Lot 102 — Antique 14K Gold and Diamond Necklace
- Lot 103 — TIFFANY & CO. 18K Gold Star Earclips
- Lot 104 — TIFFANY & CO. 18K Gold Earclips
- Lot 105 — TIFFANY & CO. 18K Gold Earrings
- Lot 106 — TIFFANY & CO. 18K Gold and Cultured Pearl Earclips
- Lot 107 — 18K Gold, Ruby, Emerald, Sapphire, and Diamond Earrings
- Lot 108 — GUMPS 18K Gold, Lapis Lazuli, and Diamond Earclips
- Lot 109 — 18K Gold, Pink Sapphire, Diamond, and Enamel Bracelet
- Lot 110 — 18K Gold, Venetian Glass, and Ruby Pendant
- Lot 111 — 14K Gold and Diamond Ring
- Lot 112 — 18K Gold and Diamond Ring
- Lot 113 — 18K Gold and Diamond Ring
- Lot 114 — 18K Gold and Diamond Ring
- Lot 115 — 18K Gold and Diamond Ring
- Lot 116 — TIFFANY & CO. 14K Gold Necklace
- Lot 117 — 14K Gold and Diamond Bracelet
- Lot 118 — BARRY KIESELSTEIN-CORD 18K Gold and Diamond Ring
- Lot 119 — 18K Gold and Diamond Bracelet
- Lot 120 — 14K Gold, Diamond, and Onyx Bracelet
- Lot 121 — 14K Gold Necklace
- Lot 122 — 18K Gold Bracelet
- Lot 123 — 14K Gold Bracelet
- Lot 124 — Pair of 14K Gold and Aquamarine Bracelets
- Lot 125 — 14K Gold Necklace
- Lot 126 — 14K Gold Necklace
- Lot 127 — 18K Gold, Moonstone, and Cultured Pearl Pendant
- Lot 128 — Silver-Topped-Gold, Diamond, and Garnet Brooch
- Lot 129 — Antique Silver, 14K Gold, and Diamond Necklace
- Lot 130 — CARTIER Platinum, 18K Gold, Diamond, and Enamel Wristwatch
- Lot 131 — HAMILTON Platinum, 14K Gold, and Diamond Wristwatch
- Lot 132 — AUDEMARS PIGUET 18K Gold 'Classic' Wristwatch
- Lot 133 — OMEGA 18K Gold and Diamond Wristwatch
- Lot 134 — OMEGA 14K Gold and Diamond Wristwatch
- Lot 135 — BUCHERER 18K Gold Wristwatch
- Lot 136 — OMEGA 14K Gold Wristwatch
- Lot 137 — BAUME & MERCIER 18K Gold and Diamond Wristwatch
- Lot 138 — CHOPARD Stainless Steel 'Imperiale' Wristwatch
- Lot 139 — EBEL Stainless Steel and Diamond 'Beluga' Wristwatch
- Lot 140 — OMEGA 18K Gold 'Damier' Wristwatch
- Lot 141 — PATEK PHILIPPE 18K Gold 'Calatrava' Wristwatch
- Lot 142 — BREGUET 18K Gold 'Classique' Wristwatch
- Lot 143 — BREITLING 18K Gold Chronograph Wristwatch
- Lot 144 — CHOPARD 18K Gold, Diamond, and Enamel 'Happy Diamonds' Wristwatch
- Lot 145 — TIFFANY & CO. 18K Gold and Platinum Pocket Watch
- Lot 146 — A. SKINNER & SONS 18K Gold Pocket Watch
- Lot 147 — Silver and Diamond Dress Studs
- Lot 148 — CARTIER 18K Gold and Sapphire Vanity Case
More auctions in Massachusetts
- THE BETTCHER COLLECTION-RAYMOND NH — Amesbury · October 30, 2026
- Oct D1 Estate of Charlotte Florence 10/31/26 — Beverly · October 31, 2026
- Annual Fall Fine Arts, Antiques & Jewelry — Sudbury · November 1, 2026
- Oct D2 Estate of Charlotte Florence 11/01/26 — Beverly · November 1, 2026
- FALL COLLECTIBLES AUCTION — SWANSEA · November 1, 2026