DiamondBuzz
Christie’s Unveils High-Value Diamond Earrings and Gemstone Masterpieces at Hong Kong Auction
Leading design houses and exceptional gemstones anchor Christie’s latest Hong Kong jewelry auction.
Christie’s has unveiled an impressive lineup of diamonds and colored gemstones for its Magnificent Jewels Online auction in Hong Kong, with bidding open until December 5. The event brings together standout creations from renowned jewelry houses and rare stones that appeal to both collectors and investors.
Leading the sale is a striking pair of emerald-cut, D-color, internally flawless diamond earrings, estimated to fetch up to HKD 2 million ($256,974). The design incorporates six diamonds ranging between 1.01 and 3.01 carats, for a combined weight of 12.05 carats, making it one of the most valuable pieces in the auction.
Alongside the top lot, Christie’s is presenting an array of exceptional gemstones and branded jewels. Houses such as Cartier, Hermes, Bucherer and Buccellati are represented, offering collectors a diverse selection of craftsmanship and heritage.

Among the notable individual pieces is a 0.86-carat fancy-vivid purplish-pink diamond ring, featuring a cut-cornered square modified-cut stone with SI2 clarity. It carries an upper estimate of HKD 1.5 million ($192,729).


Two standout ruby rings are also set to attract significant attention. One features an antique cushion-cut 4.28-carat Burmese ruby framed by diamonds, while another highlights a 12.78-carat oval Burmese ruby in a setting of round and pear-shaped diamonds. These lots are estimated at HKD 1.5 million and HKD 1.2 million, respectively.


Diamond earrings continue to dominate the top selections, including a pair of pear-brilliant-cut D-color, VVS1 diamonds weighing 3.28 and 3.25 carats, estimated at HKD 800,000 ($102,787). Another pair featuring fancy-vivid and fancy-intense yellow diamonds in matching cut-cornered rectangular modified brilliant cuts is likewise expected to reach up to HKD 800,000.
As the auction progresses, Christie’s anticipates strong interest from international buyers seeking rarity, investment-grade gems and finely crafted luxury pieces.
DiamondBuzz
Diamond Slump forces Debswana to diversify into copper, platinum and solar
Diamond-centric mining models is giving way to broader resource portfolios
Debswana Diamond Company, the 50–50 joint venture between the Botswana government and De Beers, is moving to diversify into copper, platinum and renewable energy as the prolonged downturn in natural diamond demand pressures earnings and forces the industry to rethink its growth strategy.
The company’s board has approved plans to invest in a portfolio of non-diamond projects after revenue fell 46% in 2024, the latest available financial year, highlighting the scale of the downturn in the global diamond market.

The move signals a strategic shift toward commodities with stronger long-term demand fundamentals, particularly copper, which is central to global electrification and energy-transition infrastructure.
Debswana’s diversification reflects a broader industry pivot as diamond producers confront weak consumer demand, rising competition from lab-grown stones and elevated inventories across the supply chain.
The shift is also visible among smaller exploration companies. Botswana Diamonds recently rebranded as Botswana Minerals, signalling its own strategic focus on copper exploration rather than diamonds.
Together, these moves underscore a growing consensus across the sector: the era of diamond-centric mining models is giving way to broader resource portfolios anchored in energy-transition metals.
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