My Unique Diamonds

Diamond investor and educator located in Antwerp, Belgium #Diamonds #Myuniquediamonds #Gems #Antwerp #Belgium

[My Unique Diamonds @JohnCMadsen]

Fancy Intense Blue diamond of 10.02 carats auctioned at Sotheby’s this week, the 3rd Intense Blue of its size to be offered since 2008. Blue diamonds are some of the rarest gem materials on the planet. Sold at the High Jewelry sale in New York for $8.7 million. Credit: Sotheby’s

[harrywinston @HarryWinston]

Beauty that speaks to you. A 29.09-carat Paraiba is at the center of this jewel from the ultimate high jewelry house founded by the “King of Diamonds.” Discover the Talk to Me, Harry Winston collection: https://t.co/tuModKOiWs #HarryWinston #WinstonHighJewelry

[My Unique Diamonds @JohnCMadsen]

Christie’s is auctioning off the “Azure Blue”: a 31.62 carat fancy blue pear-shaped diamond, the largest of its kind offered at auction. Estimated at $6.5 million to $8.5 million. The auction is on June 9 at Rockefeller Center. Credit: Christie’s

[Natural Gems Belgium @naturalgemsbel]

Rough tourmaline - for faceting or rough gemstone jewelry - 1.950 ct - bluish green 👇
Rough tourmaline - for faceting or rough gemstone jewelry - 1.950 ct - bluish green Certificate: RO-TOUR025BG-002-... https://t.co/jlQIeb2ZAQ

[Chaumet @Chaumet]

Dahlia tiara transforms.

Five removable blooms, infinite possibilities. Heritage reimagined through contemporary vision.

#JewelsbyNature #ChaumetHighJewelry #Chaumet

[harrywinston @HarryWinston]

Breathtaking sapphire and diamond gems echo the rhythm of waves and light. Find more brilliant summer jewels: https://t.co/jL2UeLYCu3 #HarryWinston #WinstonHighJewelry

[harrywinston @HarryWinston]

Breathtaking sapphire and diamond gems echo the rhythm of waves and light. Find more brilliant summer jewels: https://t.co/ltSEEfr77c #HarryWinston #WinstonHighJewelry

[Tiffany & Co. @TiffanyAndCo]

In 1912, this Tiffany & Co. pocket watch was given as a tribute to Captain Arthur Rostron, whose action aboard the R.M.S. Carpathia saved nearly 700 lives in the aftermath of the R.M.S. Titanic. It is an expression of gratitude and a remarkable chapter in the House's legacy.

[harrywinston @HarryWinston]

This necklace honors a brilliant legacy of excellence—where each sapphire and diamond is meticulously handset into gleaming platinum with unwavering precision. #HarryWinston #WinstonHighJewelry

[MineralExpert.org @mexporg]

Rare #Bixbyite (Mn end-member) in rhylotite matrix from Thomas Range, Juab County, Utah, USA.

FOV 12 mm

#minerals #crystals #mineralcollecting #mineralexpert #rockhounding #mineralogy

[harrywinston @HarryWinston]

The House presents an extraordinary #WinstonHighJewelry design, where 56 carats of sapphires and 54 carats of diamonds unite in a jewel of regal brilliance. Schedule an appointment for more information: https://t.co/fFCrPP75cg #HarryWinston

[Tiffany & Co. @TiffanyAndCo]

The Seahorse necklace from Blue Book 2025: Sea of Wonder is a testament to the House’s legacy of exceptional craftsmanship and unrivaled gemstone expertise. Its setting echoes the elegant movements of the underwater creature. Discover more: https://t.co/8FAABFY8nB

[Eternia Gems @Angel74654801]

#Catawiki Blau, Violett Saphir - 1.21 ct - International Gemological Institute (IGI) - No Treatment-Color Change https://t.co/OiagQcFzV6

[My Unique Diamonds @JohnCMadsen]

https://t.co/ty6jpaE2Nt

[Edahn Golan @edahn]

Global diamond production rose 5.8% to 118 million carats in 2024, according to the latest @KimberleyProces figures. The value of production, however, fell 10% as global consumer demand kept declining.

The average value per carat of last year’s production fell 15% to $97, following a 16% fall in 2023. In the past two years, value of production has crashed by 28%.

Check out https://t.co/BNp2M1KTz9 for more on this.

[Edahn Golan @edahn]

My thoughts on the changes in the US jewelry retail scene and how they affected the firms that drive it. A National Jeweler's State of the Majors Special. https://t.co/mntKAsKTqS

[Edahn Golan @edahn]

This is part of Chanel's push into jewelry.
https://t.co/Kp4YLZLH5c

[Tiffany & Co. @TiffanyAndCo]

Tiffany & Co. is honored to announce actress Zhang Ziyi as the newest global House ambassador. An icon of elegance, strength and cinematic artistry, Zhang shines in Tiffany & Co. designs including the Jean Schlumberger by Tiffany Stars and Moons necklace, a Tiffany High Jewelry diamond ring, earrings and bracelet, and a Tiffany Victoria® diamond bracelet. #TiffanyAndCo

[Edahn Golan @edahn]

In January, Botswana’s rough diamond exports fell 78% year over year, according to recently released preliminary figures by the Bank of Botswana.

The decline comes as global demand for diamonds shrank and existing inventories supplied most consumers’ demand. This is a long-term trend that effects Botswana’s most important export.

In 2023, the country’s rough diamond exports sank 41%, followed by an additional 26% drop in 2024.

If you are after annual figures, look here: https://t.co/4bQOBBqalA

[Gem-A @GemAofGB]

Japanese techniques of pearl restoration in the latest Gems&Jewellery 📚

Ayako Naito dives into the methods used when a pearl is damaged. Gem-A Members: https://t.co/CFv5S1bL7g

📸 Pearls affected by the Great East Japan Earthquake, The Pearl Science Laboratory Co. Ltd.