Auction preview · Bonhams
Bonhams to Offer Fine Jewelry: California
A preview of the top lots ahead of Bonhams's Fine Jewelry: California.
PC Auction DeskFact-checked · 10 citations verified
Bonhams will present Fine Jewelry: California, with bidding opening 29 July.
A DIAMOND NECKLACE carries an estimate of $30,000 to $50,000.
A LOOSE FANCY PINK-PURPLE DIAMOND carries an estimate of $30,000 to $50,000.
A LOOSE FANCY DEEP PINK DIAMOND carries an estimate of $25,000 to $35,000.
A LOOSE FANCY BLUE DIAMOND carries an estimate of $25,000 to $35,000.
A DIAMOND NECKLACE, CIRCA 1920 carries an estimate of $25,000 to $35,000.
Top lots by result
- Est. $30–50K—
- Est. $30–50K—
- Est. $25–35K—
- Est. $25–35K—
- Est. $25–35K—
- Est. $20–30K—
- Est. $20–30K—
- Est. $20–30K—
- Est. $20–30K—
- Est. $20–30K—
- Est. $20–30K—
- Est. $25–28K—
| Top lots by result | Estimate | Realized | Where it landed | |
|---|---|---|---|---|
 | A DIAMOND NECKLACE | $30–50K | — | |
 | A LOOSE FANCY PINK-PURPLE DIAMOND | $30–50K | — | |
 | A LOOSE FANCY DEEP PINK DIAMOND | $25–35K | — | |
 | A LOOSE FANCY BLUE DIAMOND | $25–35K | — | |
 | A DIAMOND NECKLACE, CIRCA 1920 | $25–35K | — | |
 | AN EMERALD AND DIAMOND NECKLACE AND EARRING SET | $20–30K | — | |
 | A BICOLOR GOLD AND RUBY NECKLACE | $20–30K | — | |
 | A LOOSE FANCY INTENSE PINK-PURPLE DIAMOND | $20–30K | — | |
 | A LOOSE FANCY DEEP PINK DIAMOND | $20–30K | — | |
 | A RUBY AND DIAMOND NECKLACE | $20–30K | — | |
 | A DIAMOND NECKLACE, CIRCA 1950 | $20–30K | — | |
 | A PLATINUM, MULTI-COLORED SAPPHIRE AND DIAMOND NECKLACE | $25–28K | — | |
Range band marks the pre-sale estimate; the tick marks the realized price. Lot photography: Courtesy Bonhams.
Market context · Jewellery · 2026 YTDPC Auction Desk
Phillips
$13.9M
Bonhams
$3.1M
Jewellery YTD $17.0MAvg sell-through 88%Leader Phillips
Figures in the modules above are computed from the underlying auction data, never written by the model.