$55,000 sapphire necklace leads Bonhams California on 24 September
Four sapphires of 3.25 to 5.65 carats sit in the top lot of a sale of more than 200 pieces. Tiffany, Hermes and David Webb fill out the estate names.
By The Saleroom Desk
What changed
The estate end prices. Bonhams sells more than 200 lots in California on 24 September. A multicoloured sapphire and diamond necklace carries the top estimate at $55,000, with four sapphires between 3.25 and 5.65 carats.
What it means
- If you buy estate goods: this is the band a shop can actually restock from, not a trophy sale.
- If you price signed pieces: a David Webb bangle at $25,000 to $35,000 is the comparable.
- What this is not: a market. Five lots do not set an estate price level.
Key figures
| Top estimatesapphire and diamond necklace | $55,000 |
|---|---|
| Lots on offerCalifornia, 24 September | 200+ |
| Gems in one suiteemerald, ruby and sapphire | 97.45 ct |
| Diamond line necklaceestimate $25,000 to $35,000 | 37.70 ct |
Source: Bonhams Fine Jewelry: California, 24 September 2026 - lots and estimates as published by Rapaport, 2 September 2026
This is the restocking band
Five figures, not seven. The whole published top five sits between $25,000 and $55,000. A shop buying estate goods can bid in that band; it cannot bid in Hong Kong's.
Signed names carry it. Tiffany, Hermes and David Webb appear among the makers. A signature is what lifts an estate lot above the melt and stone value beneath it.
| Lot | Principal stones | Estimate |
|---|---|---|
| Multicoloured sapphire and diamond necklace | Sapphires of 3.25, 3.32, 4.56 and 5.65 ct | $55,000 |
| Gem and diamond suite, three pieces | 36.85 ct emerald, 33.75 ct ruby, 26.85 ct sapphire | $35,000-55,000 |
| Pearl and sapphire necklace and bracelet | 4.90 ct sapphire, 7.50 ct diamond | $30,000-50,000 |
| Diamond line necklace | 37.70 ct total | $25,000-35,000 |
| David Webb panther bangle | 1.10 ct diamond | $25,000-35,000 |
Source. Rapaport, 2 September 2026, reporting Bonhams Fine Jewelry: California, 24 September 2026.
The 97.45 carats. is the sum of the suite's emerald, ruby and sapphire weights, computed by Carat Capital.
The top lot. carries a single figure in the source rather than a range.
Weight is where the value hides
One suite, 97.45 carats. The three-piece gem suite holds 36.85 carats of emerald, 33.75 of ruby and 26.85 of sapphire, and is estimated at $35,000 to $55,000.
Diamonds price lower. A line necklace of 37.70 carats carries $25,000 to $35,000, under $1,000 a carat at the top of the range.
What the preview does not say
No sale total. Bonhams publishes no aggregate estimate for the 200-plus lots, and the five named are a selection made for the trade press.
What to watch
- 24 SepThe sale in California. The $55,000 necklace against its hammer is the test.
- Before 24 SepBonhams' catalogue, for a low estimate on the top lot and the full lot count.
- 17 SepSotheby's Hong Kong, the same month at forty times the top estimate.
The story so far
- 39 of 48 in SydneyA regional room cleared four fifths of its lots.
- £59,000 in PenzanceA steel Patek beat its low estimate 11.8 times.
Go deeper
What would change this call
A hammer well above $55,000 on the top lot, with the suite following. That would make this a coloured-stone result rather than an estate-restocking sale, and the reading of it as a trade buying band would not hold.
How an estate lot is estimated
A house estimating estate jewellery starts from the intrinsic value of the stones and metal, applies a discount for the cost of breaking the piece up, then adds a premium for the maker's signature, the period and the condition of the mount. Unsigned pieces tend to be estimated close to intrinsic value, which is why a signed bangle carrying little diamond weight can be estimated alongside a necklace holding thirty-seven carats.
Method
Estimates, carat weights and the lot count are Rapaport's, published 2 September 2026, reporting Bonhams' Fine Jewelry: California sale of 24 September 2026. The 97.45-carat figure is the sum of the suite's 36.85 carats of emerald, 33.75 of ruby and 26.85 of sapphire, computed by Carat Capital; the source gives them separately and also lists 5.85 carats of diamonds in the same suite, which is excluded from that sum. The under-$1,000-a-carat reading on the line necklace divides $35,000 by 37.70 carats and is Carat Capital's arithmetic. Rapaport publishes a single figure for the top lot rather than a range, and no aggregate estimate for the sale, so neither a low estimate nor a sale total is stated.