Fortuna Auction House

05/29/2026

✨ NOW BIDDING: Lot 2176 — Art Deco Diamond Ring

There's a reason Art Deco jewelry has endured for a century: it was designed to be unforgettable.

This exceptional platinum ring centers an old mine cut diamond of approximately 2.00 carats (G-H / VS), surrounded by matching old mine cut diamonds totaling another 2.00 carats. The mounting — geometric, floral, unmistakably of the Art Deco / late Edwardian period — frames the stones with architectural precision while keeping the overall feeling warm, romantic, and deeply wearable.

Old mine cut diamonds predate modern brilliant cuts. They were shaped by hand, designed for candlelight, and carry a depth of character that modern diamonds simply don't replicate. This one is a particularly fine example: white, lively, and full of personality.

🔹 Metal: Platinum
🔹 Center stone: Old mine cut diamond, approx. 2.00 ct, G-H / VS
🔹 Accents: Old mine cut diamonds, approx. 2.00 ct total
🔹 Ring size: 8-1/2 (sizeable)
🔹 Provenance: Property of a Montana Lady

📋 Estimated retail value: $11,500
🏷️ Auction estimate: $5,500 – $7,500
💰 Starting bid: $4,500

⏳ Timed auction — approximately 3 days remaining, closes on May 31.

👉 Bid now on https://auctions.fortunaauction.com/

05/28/2026

A standout of our Fine Jewelry, Watches & Handbags sale, this Victorian Ceylon unheated sapphire and diamond ring is especially compelling for its age, beauty, and private collection provenance.

Elegant, richly colored, and certified, it captures the romance of 19th-century design while offering the kind of rarity serious collectors look for.

Browse the full sale and bid now:

Fortuna Auction is an auction house based in New York City, specializing in fine, estate, and antique jewelry. Our auctions are a platform for collectors, wholesalers, retailers, and private clients to buy and sell jewelry on an international scale.

05/20/2026

Blue, in three expressions.

A Cartier Tank reimagined. An 11.22 carat sapphire bracelet in bloom. A Bvlgari Serpenti Forever born from the Hiroshi Fujiwara collaboration.

The Cartier Tank Solo begins with an icon, then departs from it, transformed by a custom pavé sapphire and diamond bezel and lugs commissioned by a previous owner who understood that personal style lives in the details. The cool geometry of the Tank becomes something sharper, rarer, unmistakably individual.

Beside it, a sapphire and diamond bracelet unfolds like a series of jeweled flowers in motion: 11.22 carats of sapphires framed by 2.98 carats of G-H/VS diamonds, each bloom composed with remarkable balance and dimension. Romantic, but with precision.

And anchoring the story: the Bvlgari Serpenti Forever Top Handle in RFID denim blue, from the Hiroshi Fujiwara x Bvlgari collaboration. Italian craftsmanship filtered through Fragment Design’s unmistakable restraint, finished with the iconic serpent head closure that feels equally at home in fashion and art.

Three shades of blue. Three collectors’ pieces. One perspective.

Lot 1005 · Cartier Tank Solo, 27mm Steel, Custom Sapphire & Diamond Pavé Bezel - Est. Retail: $7,000; Starting Bid: $3,000
https://auctions.fortunaauction.com/lots/view/1-CNIAZE/cartier-tank-solo-in-steel

Lot 2144 · Sapphire & Diamond Flower Bracelet, 18K White Gold - Est. Retail: $10,000; Starting Bid: $4,500
https://auctions.fortunaauction.com/lots/view/1-CNIB8S/sapphire-and-diamond-flower-bracelet

Lot 3005 · Bvlgari Serpenti Forever Top Handle, Denim Blue Hiroshi Fujiwara x Bvlgari - Est. Retail: $3,500; Starting Bid: $1,300
https://auctions.fortunaauction.com/lots/view/1-CNIBAG/bvlgari-serpenti-forever-top-handle-bag-denim-rfid-blue-hiroshi-fujiwara-collaboration

Auction closes on May 21 at 11 AM ET. Register to bid: https://auctions.fortunaauction.com

05/20/2026

Lot 1005 · Cartier Tank Solo, 27mm Steel, Custom Sapphire & Diamond Pavé Bezel
Est. Retail: ,000; Starting Bid: ,000

Lot 2144 · Sapphire & Diamond Flower Bracelet, 18K White Gold
Est. Retail: ,000; Starting Bid: ,000

Lot 3005 · Bvlgari Serpenti Forever Top Handle, Denim Blue
Hiroshi Fujiwara x Bvlgari

Auction closes on May 21 at 11 AM ET
Register to bid: https://auctions.fortunaauction.com/lots/view/1-CNIAZE/cartier-tank-solo-in-steel
https://auctions.fortunaauction.com/lots/view/1-CNIB8S/sapphire-and-diamond-flower-bracelet
https://auctions.fortunaauction.com/lots/view/1-CNIBAG/bvlgari-serpenti-forever-top-handle-bag-denim-rfid-blue-hiroshi-fujiwara-collaboration

05/06/2026

She didn’t chase the sea. She arrived wearing it.

There are jewelry suites that sparkle.
And then there are suites that breathe.

Hand-carved aquamarine leaves ripple across the skin like sunlight moving through shallow water, translucent, weightless, alive with motion. Over 320 carats of aquamarine flow through the necklace, bracelet, and earrings, each leaf individually carved to catch light from every angle.

Deep cobalt lapis lazuli flowers bloom throughout the composition like wildflowers against the tide, rich velvety blue against the icy clarity of aquamarine.

The effect isn’t loud.
It’s hypnotic.

Cool against the skin. Fluid in movement. A kind of quiet luxury that feels less like adornment and more like atmosphere.

✨ Necklace · Lot 2006
✨ Bracelet · Lot 2007
✨ Earrings · Lot 2008

Estimated retail value for the complete suite: $19,500
Opening bids for the entire suite begin at $4,800.

Auction closes Thursday, May 7 at 11 AM ET ⏳
Bid now:
https://auctions.fortunaauction.com/auctions/1-C8H0I1/fine-jewelry-watches-handbags?limit=999

05/06/2026

What does $77,000 in Zambian emeralds feel like on a Tuesday?

Some women dress and then accessorize.
She starts with the emeralds.

On her ears, Zambian cabochons, 25.02 carats total. A origin worth naming. Deep, slightly bluish green with the kind of saturation that does not ask for attention. It commands it. Nearly 5 carats of pear-shape diamonds radiate outward like a crown her ears were made to hold.

On her hand, two emerald cabochons stacked and elongated, reaching 1¾ inches up her finger like a garden that decided to grow upward. 16 carats of living green, framed by round brilliants and a rose-cut diamond that knows its place.

She touches her ears before she walks in.
She glances at her hand as she reaches for the door.
And then she does not think about jewelry again.
Because she does not have to.

Lots 2145 + 2146 | Combined est. retail: $77,000
Ring opening bid $6,750 · Earrings open at $15,500
Auction closes Thursday, May 7 at 11 AM ET ⏳
Bid now: https://auctions.fortunaauction.com/auctions/1-C8H0I1/fine-jewelry-watches-handbags?limit=999

05/04/2026

She is not wearing jewelry. She is wearing a decision.

The decision to walk into a room and not explain herself.
To let rubies speak first. To let emeralds answer. To let 18.35 carats of diamonds make sure everyone heard it.

This chromatic drop necklace in 18K yellow gold carries every color the earth has ever made precious, rubies, emeralds, blue sapphires, pink sapphires, and yellow sapphires, arranged not by accident but by intention.
Like a woman who has stopped being careful and started being herself.

There are necklaces that complete an outfit.
And then there are necklaces that complete a chapter.

Lot 2064 | Starting bid: $28,000 | Estimated retail: $95,000
Auction begins closing Wednesday, May 7 at 11 AM ET.
Bid now:
https://auctions.fortunaauction.com/lots/view/1-CK6X3H/ruby-sapphire-emerald-and-diamond-drop-necklace

🌍 Global shipping available.

05/04/2026

She is not wearing jewelry. She is wearing a decision.

The decision to walk into a room and not explain herself.
To let rubies speak first. To let emeralds answer. To let 18.35 carats of diamonds make sure everyone heard it.

This chromatic drop necklace in 18K yellow gold carries every color the earth has ever made precious, rubies, emeralds, blue sapphires, pink sapphires, and yellow sapphires, arranged not by accident but by intention.
Like a woman who has stopped being careful and started being herself.

There are necklaces that complete an outfit.
And then there are necklaces that complete a chapter.

Lot 2064 | Starting bid: ,000 | Estimated retail: ,000
Auction begins closing Wednesday, May 7 at 11 AM ET.
Bid now:
https://auctions.fortunaauction.com/lots/view/1-CK6X3H/ruby-sapphire-emerald-and-diamond-drop-necklace

🌍 Global shipping available.

04/26/2026

Two hours left - and these close tonight.
An emerald and diamond bracelet built like a piece of architecture - openwork white and yellow gold set with round emeralds and pear, marquise, and baguette diamonds throughout. Est. $26,000-$34,000, starting at $17,000.
Lot 2148:
https://auctions.fortunaauction.com/lots/view/1-CGKHU1/emerald-and-diamond-bracelet

And a Chopard Happy Sport with ruby bezel and floating diamonds on a red crocodile strap - no reserve, estimated at $3,000-$4,000, starting at $100.
Lot 1004:
https://auctions.fortunaauction.com/lots/view/1-CGKHKS/chopard-happy-sport-in-steel-with-ruby-bezel-no-reserve

04/26/2026

The Cartier Panthere in 18K gold with factory diamonds. Roman numerals, sapphire crown, the brick-link bracelet set throughout with brilliant-cut diamonds. One of the most recognized designs in fine watchmaking - and one of the few that reads equally as jewelry.
Estimated at $14,500-$18,500. Closing today at 5:00 PM ET.

Lot 1019 | Est. $14,500-$18,500 | Starting bid: $10,000

Bid now:
https://auctions.fortunaauction.com/lots/view/1-CGKHLM/cartier-panthere-ladies-in-18k-gold