Paraiba Tiffany Necklace Sets New World Record at Christie’s New York

A spectacular Tiffany & Co. necklace has made auction history, achieving a record-setting USD $4.2 million and establishing a new world auction record for a Paraiba tourmaline. The piece sold for more than seven times its high estimate during Christie’s Magnificent Jewels sale on 10 December in New York.

The centrepiece of the necklace is an exceptional 13.54-carat triangular modified brilliant-cut Paraiba tourmaline, accented by an array of round, pear, and square-shaped diamonds. Paraiba tourmalines of this size and saturation remain among the rarest gemstones in the world, and the extraordinary result underscores the continued strength of the coloured-gemstone market.

Christie’s reported an impressive 95% sell-through rate, with the auction realising USD $46.5 million. High-value pieces from renowned maisons such as Harry Winston, Van Cleef & Arpels, Cartier, and Tiffany & Co. all attracted strong global demand.

Below are the top-performing lots from the sale:

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Top 10 Jewels at the Christie’s Magnificent Jewels Auction

1. Paraiba Tourmaline Tiffany & Co. Necklace
Final price: $4.2 million
Estimate: $300,000 – $600,000
A 13.54-carat Paraiba tourmaline with diamond accents — now a world-record holder.

2. Antique Kashmir Sapphire Earrings (circa 1910)
Final price: $3.1 million
Estimate: $1.5 million – $2 million
Featuring 11.92-carat and 12.61-carat cushion mixed-cut Kashmir sapphires suspended from old-cut diamonds.

3. Art Deco Cartier Ring (Rockefeller Kashmir Sapphire, circa 1925)
Final price: $2.6 million
Estimate: $1.5 million – $2.5 million
Centred on the celebrated 17.66-carat sugarloaf cabochon Kashmir sapphire.

4. D-Colour, VS1, 27.19-Carat Type IIa Diamond Ring
Final price: $1.9 million
Estimate: $1.4 million – $1.8 million
A rare type IIa diamond in classic emerald cut.

5. 16.23-Carat Kashmir Sapphire Ring
Final price: $1.8 million
Estimate: $500,000 – $700,000
A dramatic result for a cushion mixed-cut Kashmir sapphire surrounded by old-cut diamonds.

6. Tiffany & Co. Paraiba Tourmaline Earrings
Final price: $1.3 million
Estimate: $120,000 – $180,000
Two oval modified brilliant-cut Paraiba gems of 3.19 and 3.45 carats — another major Paraiba surprise.

7. Cartier Ring with 23.03-Carat D, VVS2 Step-Cut Diamond
Final price: $1.1 million
Estimate: $800,000 – $1.2 million
Featuring a cut-cornered rectangular step-cut diamond flanked by trapezoid stones.

8. Barbara & Frank Sinatra Diamond Ring
Final price: $990,600
Estimate: $800,000 – $1.2 million
Showcasing a 20.60-carat emerald-cut D, VVS1 diamond between triangular side stones.

9. Multi-Stone Diamond Earrings
Final price: $863,600
Estimate: $500,000 – $700,000
Each earring includes three pear-shaped diamonds, the largest being an 11.36-carat D VS2 and a 9.96-carat E VS1.

10. JAR Ruby and Diamond Earrings
Final price: $787,400
Estimate: $400,000 – $600,000
Designed with cushion, oval, pear, and round rubies surrounded by diamonds.

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What This Means for the Market

The exceptional performance of Paraiba tourmaline and Kashmir sapphire pieces highlights continued buyer appetite for rare, high-quality coloured gemstones, particularly those with strong provenance or iconic branding. Record prices at auction also reaffirm the importance of independent grading and authentication, an area where the DCLA remains Australia’s trusted authority.

Kashmir Sapphire and Diamond Necklace Achieves $16.1M at Christie’s Hong Kong

A magnificent sapphire and diamond necklace was the star of Christie’s recent Magnificent Jewels auction in Hong Kong, realising HKD 125.5 million (USD 16.1 million) and comfortably landing within its estimated range.

The centrepiece features 16 antique, cushion-shaped Kashmir sapphires, ranging from 3.43 to 13.37 carats—coveted for their velvety saturation and rarity. Each sapphire is framed by an array of D–F colour, internally flawless to VS1 diamonds, with a combined diamond weight of 121.81 carats.

According to Christie’s, the necklace dominated the 25 November sale and drew significant attention from collectors seeking exceptional provenance and craftsmanship.

The auction totalled HKD 538.1 million (USD 69.1 million), showcasing important creations from renowned maisons including Harry Winston, Van Cleef & Arpels, Cartier, and JAR.

Top 10 Lots from the Sale

1. Burmese Ruby “Red Butterfly” Earrings — HKD 25.5M (USD 3.3M)

Designed as vibrant red butterflies, these earrings feature oval Burmese rubies of 2.03, 2.11, 5.01, and 5.05 carats, set alongside pear- and marquise-cut diamonds. The pair sold within its presale estimate.

2. Kashmir Sapphire and Diamond Earrings — HKD 24.9M (USD 3.2M)

Showcasing four cushion-shaped Kashmir sapphires weighing 2.28–7.90 carats, accented by round and pear-cut diamonds, this pair also achieved its projected price range.

3. Diamond Rivière Necklace — HKD 22.1M (USD 2.8M)

A classic rivière design set with 25 diamonds (E–I colour), totalling 88.14 carats. The necklace includes five outstanding round brilliants weighing 8.57, 10.01, 12.86, 13.81, and 31.71 carats.

4. Cartier Tutti Frutti Necklace and Brooch — HKD 19.4M (USD 2.5M)

This iconic multi-gem suite features carved emeralds, sapphires, and rubies, complemented by cabochon beads and round diamonds. The result aligned with expectations.

5. 12.86-Carat Fancy Orangey-Pink Diamond — HKD 18.6M (USD 2.4M)

An unmounted round brilliant, VVS2 clarity and Fancy Orangey Pink colouration—a rare combination—fetched its forecasted price.

6. Art Deco Multi-Gem Cartier Bracelet (c. 1925) — HKD 16.4M (USD 2.1M)

Set with jadeite cabochons, a star sapphire, carved rubies and sapphires, enamel, and old-cut diamonds, this 1920s piece surged to nearly triple its high estimate.

7. 30.87-Carat D-Colour Heart-Shape Diamond Necklace — HKD 16.1M (USD 2.1M)

Featuring a detachable Type IIa, D-colour, VVS1 heart-shaped diamond, this versatile jewel achieved slightly above its lower estimate.

8. Boehmer et Bassenge Diamond Earrings — HKD 12.7M (USD 1.6M)

The earrings include two oval D-colour stones: an 11.03-carat internally flawless diamond and an 11.13-carat flawless diamond, suspended from round and marquise diamonds. The lot exceeded its high estimate.

9. Fancy Vivid Yellow Diamond Ring — HKD 10.9M (USD 1.4M)

An emerald-cut 10.39-carat Fancy Vivid Yellow diamond, VVS1 clarity, accompanied by round diamond shoulders, outperformed its HKD 6.8 million estimate.

Why This Matters to the Australian Market

High-profile auction results continue to highlight global demand for rare gemstones—particularly Kashmir sapphires, high-colour diamonds, and historically significant Cartier pieces.

As Australia’s only internationally accredited diamond laboratory, DCLA recognises how transparent, scientifically rigorous grading underpins confidence in the global secondary market. These results reinforce the premium commanded by stones with verified origin, colour, clarity, and craftsmanship.

Source: DCLA