Precious Trade
At the hammer

Sales/Results · Sotheby's New York · online auction N11928

The Gem Drop December

Online auction · 12 December 2025 · See the catalogue on Sotheby's

The catalogue

Estimates in USD. Prices realised not read yet: Sotheby’s shows them to logged-in visitors only.

Sapphires 2 lots

Sapphire ringUSD 30k–50kestimate Lot 7 Sapphire ring 13.03 ct · Ceylon · No heat Purple sapphire ringUSD 40k–60kestimate Lot 11 Purple sapphire ring 11.88 ct · Tanzania · No heat

Rubies 1 lots

Burma

Ruby and diamond ringUSD 20k–40kestimate Lot 9 Ruby and diamond ring 1.47 ct · Burma · No heat

Coloured diamonds 1 lot

Fancy yellowish brown diamond and green beryl ringUSD 65k–85kestimate Lot 5 Fancy yellowish brown diamond and green beryl ring 7.13 ct · Fancy Yellowish Brown · SI1

Colourless diamonds 1 lot

Diamond band ringUSD 100k–150kestimate Lot 6 Diamond band ring 19.52 ct

Signed jewels 6 lots

Jogani

Fancy yellowish brown diamond and green beryl ringUSD 65k–85kestimate Lot 5 Fancy yellowish brown diamond and green beryl ring 7.13 ct · Fancy Yellowish Brown · SI1 Purple sapphire ringUSD 40k–60kestimate Lot 11 Purple sapphire ring 11.88 ct · Tanzania · No heat Faint pink diamond ringUSD 30k–50kestimate Lot 3 Faint pink diamond ring 2.01 ct · VS2 Sapphire ringUSD 30k–50kestimate Lot 7 Sapphire ring 13.03 ct · Ceylon · No heat Ruby and diamond ringUSD 20k–40kestimate Lot 9 Ruby and diamond ring 1.47 ct · Burma · No heat Diamond ringUSD 8k–10kestimate Lot 2 Diamond ring 2.00 ct · SI1

Other jewels 4 lots

Pair of diamond stud earringsUSD 125k–175kestimate Lot 4 Pair of diamond stud earrings Diamond braceletUSD 70k–150kestimate Lot 1 Diamond bracelet Diamond braceletUSD 70k–100kestimate Lot 8 Diamond bracelet Diamond band ringUSD 30k–40kestimate Lot 10 Diamond band ring

The sale

Online auction N11928
12 December 2025The Gem Drop December11 lots
The catalogue in numbers By maison, origin, treatment and type

Every lot of the sale, by maison, origin, treatment and type. 11 lots counted.

By maison lots
Jogani 6
Unsigned 5
By origin stones
Burma 1
Ceylon 1
Tanzania 1
By treatment lab reports
Unheated 3
Natural colour 2
Minor oil 1
No oil 1
By type lots
Ring 8
Bracelet 2
Earrings 1

Counted by script (scripts/count-lots.mjs) from the lot titles and descriptions: maison as signed, origin and treatment as stated in the laboratory report. A lot with several reported stones counts once per origin.

Source: Sotheby’s catalogue, sale N11928, public lot data read by Precious Trade (scripts/sothebys-lots.mjs). Prices to be added (Sotheby's login): Sotheby’s shows results to logged-in visitors only.