Magnificent Jewels Christie’s 2025

Magnificent Jewels

Magnificent Jewels by Christie’s In a market often influenced by economic uncertainty, Christie’s has once again proven the unwavering demand for exceptional fine jewels with rich history and provenance. The recent Magnificent Jewels auction in New York saw collectors from around the globe engage in fierce bidding, propelling the sale to an unprecedented $87.7 million—the highest total … Read more

Important Gems and Jewelry

The Marie-Thérèse Pink Diamond: A Journey of Rarity, Royalty, and Record-Breaking Sale

Over the past six months, the market for important gems and jewelry has been marked by several significant auction sales, particularly at major houses like Christie’s. The most notable sales often involve rare, large, and historically significant pieces. Here are some of the key highlights from the last six months: Christie’s Magnificent Jewels Auctions: Christie’s … Read more

The Marie-Thérèse Pink Diamond

The Marie-Thérèse Pink Diamond: A Journey of Rarity, Royalty, and Record-Breaking Sale

The Marie-Thérèse Pink Diamond: A Journey of Rarity, Royalty, and Record-Breaking Sale     The Glittering Legacy: Unveiling the Marie-Thérèse Pink Diamond In the rarefied world of high-end jewelry, where history and rarity converge, a single gemstone can transcend its physical form to become a cultural artifact. This was the case on June 17, 2025, … Read more

Ancient History of Lapis Lazuli

The Azure Allure: A Journey Through the Ancient History of Lapis Lazuli   Few gemstones command the immediate fascination and enduring reverence quite like Lapis Lazuli. Its captivating deep blue, often flecked with golden pyrite and streaked with white calcite, has enchanted humanity for millennia, making it one of the oldest and most continuously prized … Read more

A NEW UNDERSTANDING OF HOW SEAM OPAL IS MADE IN NATURE

how seam opal is made in its natural environment and how to detect for opals through the research that we have done on this matter

[sc_fs_multi_faq headline-0=”h2″ question-0=”1. What is the primary source of the silica that forms Australian seam opal?” answer-0=”According to the research, the silica source is Diatoms. These are tiny, single-celled algae that live in “houses” made of transparent opaline silica. When these organisms died in the ancient Eromanga Sea, they sank to the bottom, creating thick … Read more

Welo Opal 2025

Welo Opal: Ethiopia's Fiery Gemstone and the Story of its Mining

Welo Opal: Ethiopia’s Fiery Gemstone and the Story of its Mining The world of gemstones is a realm of breathtaking beauty, and among its most captivating inhabitants is the opal. For centuries, Australia held the undisputed crown as the primary source of this iridescent gem. However, in recent decades, a new star has risen from … Read more

Gemstone Mining USA 2025 and Beyond

Gemstone Mining USA  takes place within a diverse geological landscape that has formed gemstones across its states.

Historical Context of Gemstone Mining in the USA Gemstone Mining USA  takes place within a diverse geological landscape that has fostered the formation of various gemstones across its states. Gemstone mining in the USA ranges from large-scale commercial operations to smaller, recreational sites open to the public. This article provides an overview of notable gemstone … Read more

Original Source of Diamonds

India, a land of rich history and vibrant culture, holds a unique place in the world of gemstones as the original source of diamonds.

Executive Summary: The Actuarial Legacy of Indian Diamonds India holds a unique, sovereign place in the world of gemstones as the original source of diamonds. For over two millennia, India was the world’s sole supplier of these prized minerals, producing stones that defined the very concept of Sovereign Rarity. At American Gem Registry, we recognize … Read more

Opal Fields of Queensland Australia

[sc_fs_multi_faq headline-0=”h2″ question-0=”1. Where exactly is the “Opal Belt” of Western Queensland located?” answer-0=”The opal deposits are found in a massive belt approximately 250 miles wide. It extends from Kynuna (80 miles west-north-west of Winton) in a south-south-easterly direction down to the border at Hungerford, covering a total distance of about 550 miles.” image-0=”” headline-1=”h2″ … Read more

The Aga Khan Emerald sold at Christie’s Geneva

The Aga Khan Emerald, a captivating 37-carat Colombian emerald, has made headlines recently for its triumphant return to Christie's Geneva

[sc_fs_multi_faq headline-0=”h2″ question-0=”1. Who was the original owner of the Aga Khan Emerald and why was it commissioned?” answer-0=”The emerald was commissioned in 1960 by Prince Sadruddin Aga Khan as a gift for his wife, Nina Dyer. The Parisian jeweler Cartier originally set the stone into an exquisite brooch.” image-0=”” headline-1=”h2″ question-1=”2. Why was the … Read more