International News
Emeralds announce spring’s arrival in Natasha Collis x Gemfields collaboration
Just in time for the start of Emerald Month in May – when green buds burst into life, lifting spirits – comes an exciting new collaboration from Gemfields. A world-leading responsible miner and marketer of coloured gemstones – and majority-owner and operator of the Kagem emerald mine in Zambia – Gemfields has joined forces with Ibiza-based jeweller Natasha Collis on two special collections designed to “bring joy to the everyday”. The Natasha Collis Fine Jewellery x Gemfields Ludic and Dancing Duet ranges showcase Gemfields’ Zambian emeralds offset against yellow gold in pieces that balance spontaneity and refinement. Inspired by the dualities of nature, they resound with the joys of spring. The four-piece Ludic collection consists of arresting 6cm drop earrings with oval, pear and round cut emeralds; a striking statement ring with an off-centre emerald; an open bangle with emerald pave; and a necklace with a chain of oval, pear and round emeralds.
Ludic is defined by its free-form shapes, a motif which also provides the design inspiration underpinning the Dancing Duet range. In this second collection, contrasting gold forms are placed two by two, creating an intimate duality of interconnected elements. The Dancing Duet range encompasses two necklaces, cascading Dancing Duet earrings, everyday studs and a beautifully flowing bracelet. Each of these features exquisite emeralds from the Kagem mine, set in sculpted 18k gold pieces, locked together in a graceful dance of playful opposition.

“My love for emeralds combined with Gemfields’ brand ethos inspired me to create this collaboration,” says Natasha Collis, who founded her eponymous fine jewellery brand in London before relocating in 2009 to Ibiza, where she now has a boutique and studio in the rugged North of the island and takes design inspiration from nature. A trained painter, Natasha switched her focus to jewellery design, experimenting with gold and different creations, and she has never looked back.
Her signature style highlights the raw beauty of gold: hand-crafting nuggets into organic shapes, with carefully selected asymmetric gemstones incorporated in a quirky and playful way. Natasha’s designs are, at once, wearable works of art and perfect for layering into every day. Gemfields believes those who mine gemstones should do so with transparency, legitimacy and integrity and that coloured gemstones should create a positive impact for the country and community from which they originate. Kagem – 75% owned by Gemfields in partnership with Zambian government – is believed to be the world’s single largest-producing emerald mine and has been the source of some of the most exceptional emeralds ever seen. “Natasha Collis’ organic, free-flowing designs take us to Ibiza! In these beautiful collections, Zambian emeralds provide pops of green and sparkle, effortlessly elevating a look and demonstrating the playful quality of coloured gemstones. Each emerald is a miracle of nature, having formed over 500 million years ago in the most unlikely of circumstances. Their rarity and unique characteristics set them apart, and make them the perfect choice for collections that are lively, and full of fun,” says Gemfields’ Marketing and Communications Director, Emily Dungey. With emerald the resplendent birthstone of May, it is timely to see Kagem’s treasures take pride of place in these one-of-a-kind designs by Natasha.
International News
Sotheby’s Breuer Opening Auction Achieves Nearly $14 Million With Exceptional Heritage Jewels
The luxury house expands its creative partnership with the K-pop icon, introducing limited-edition pieces that fuse high jewellery craftsmanship with global pop-culture appeal.
The inaugural jewelry sale at Sotheby’s new Breuer building location showcases rare masterpieces from Boucheron, Belperron, JAR, Cartier and more—setting strong results across top lots.
Sotheby’s marked the debut of its New York Breuer building with an elegant inaugural jewelry sale titled A Legacy of Elegance: Jewels from an Exceptional Collection. The auction presented 56 curated lots from some of the most influential designers in jewelry history and closed with an impressive total approaching$14 million.
The top performer of the evening was a magnificent Boucheron laurel wreath necklace dating back to around 1888. Set with seven cushion-cut Burmese and Thai rubies and a mix of old mine-, old European-, and single-cut diamonds, the historic piece sold for $1.3 million, landing comfortably within its presale estimate.
The auction featured standout creations by celebrated names including Suzanne Belperron, JAR, René Boivin and Cartier—many of which surpassed expectations. Below are the remaining highlights from the top 10 results:

Reversible Pendant/Brooch: A vibrant multi-gem piece featuring pink topazes, rubies, diamonds, amethysts, sapphires, tourmalines and demantoid garnets sold for just over $1 million, more than doubling its $500,000 high estimate.

Diamond Earrings: A pair showcasing two pear-shaped diamonds — a 12.24-carat F/VVS2 and an 11.68-carat D/VS2 — realized $889,000.

Suzanne Belperron, 1966 Bib Necklace: Featuring topazes, morganites, aquamarines and diamonds, this statement creation brought in $825,500, exceeding its $350,000 top estimate.

JAR Quatrefoil Earrings: Pavé-set with rubies and diamonds, the pair sold for $698,500, above the $600,000 estimate.

JAR Rock Crystal & Sapphire Butterfly Brooch (circa 1987): Achieved $698,500, surpassing its $500,000 expected high.

Suzanne Belperron, 1954 Necklace: A cabochon sapphire and diamond bib-style piece that doubled its estimate, selling for $635,000.

JAR Wild Rose Brooch: Featuring a grey natural pearl framed by amethyst and sapphire petals, the brooch brought in $609,600, beating its $400,000 estimate.

Cartier 1930s Ruby & Diamond Bracelet: The invisibly-set classic reached $558,800, just over its high estimate.

JAR Frost-Inspired Earrings: Diamond-set branches radiating from pear-shaped center stones sold for $508,000, slightly above expectations.
The successful debut signals strong collector appetite for rare, historically significant jewels and reinforces Sotheby’s positioning at the forefront of high jewelry auctions.
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