Rio Tinto Unveils Final Beyond Rare™ Tender: A Unique Collection of Pink, Red, Violet, Yellow, and White Diamonds

The Beyond Rare™ Diamond Collection: Rio Tinto’s Final Tender Reveals a Spectrum of Color

Sydney, Australia – september 19, 2025 – Rio Tinto has launched its final Beyond Rare™ Tender, unveiling a impressive collection of exceptionally colored diamonds, including pink, red, violet, yellow, and white stones. This collection marks the culmination of decades of exploration and responsible mining at the Argyle diamond mine, which ceased operations in November 2020 after 43 years.

The diamonds offered in this final tender represent a unique possibility for collectors and investors, with each stone possessing its own distinct characteristics and history. The collection embodies the geological legacy of Argyle,known for its meaningful contribution to the global diamond market,notably its production of pink diamonds,which account for over 90% of the world’s supply.

diamond Color	Key Characteristics	Rarity
Pink	Vivid pink hues, influenced by internal graining.	Extremely rare
Red	Intense, saturated coloration; the rarest color in diamonds.	Remarkable Rarity
Violet	A captivating blend of purple and pink.	Very rare
Yellow	Luminous and cheerful, ranging from light to intense shades.	Rare
White	Exceptional clarity and brilliance.	Highly Sought-After

Did You Know? The color in pink diamonds is believed to be caused by structural defects in the crystal lattice created during formation, rather than chemical impurities.

Pro Tip: Understanding the 4Cs – Cut, Clarity, Carat, and Color – is crucial when considering a diamond investment. Color significantly impacts value, particularly for rare hues like pink and red.

The online tender is now open and will close on November 13, 2025, providing participants worldwide a chance to bid for these extraordinary gems. The release of the final Beyond Rare™ tender marks a significant turning point in the diamond industry.

The diamond market continues to evolve, with colored diamonds gaining prominence as both investments and heirloom pieces. Understanding the factors influencing value-such as rarity, color intensity, and clarity-is key to making informed decisions. Rio Tinto’s decision to conclude the Beyond Rare™ tenders marks the end of an era, and the demand for Argyle diamonds is expected to remain strong. Supply and demand dynamics will likely drive price gratitude for these gems in the coming years. For future explorations into the diamond market, staying updated with industry reports such as those from the Gemological Institute of America (GIA) and the Antwerp World Diamond Center (AWDC) is recommended.

What are your thoughts on the future of colored diamond investments? Do you believe the value of Argyle diamonds will continue to rise as supply dwindles?

What is the historical meaning of the Argyle mine in relation to pink diamond production?

Rio Tinto, a leading global mining group, has announced the final tender for its Beyond Rare™ diamond collection, presenting a breathtaking array of exceptionally colored and colorless diamonds. This tender showcases some of the most remarkable diamonds recovered from the Argyle mine before its closure in November 2020, marking the end of an era for this iconic source of pink diamonds. The collection is highly anticipated by collectors, investors, and jewelry enthusiasts worldwide.

Understanding the Beyond Rare™ Tender

The Beyond Rare™ tenders have become synonymous wiht exclusivity and rarity in the diamond world. Each tender features a curated selection of diamonds, meticulously chosen for their exceptional color, clarity, and carat weight. This final tender is notably significant, representing the last prospect to acquire Argyle diamonds directly from Rio Tinto.

* Historical Significance: The Argyle mine, located in Western Australia, produced over 90% of the world’s pink diamonds. Its closure has dramatically impacted the availability of these coveted gemstones.

* Tender Process: The tender process is a closed-bid auction,allowing qualified bidders from around the globe to submit offers on individual diamonds or the entire collection.

* Diamond Certification: all diamonds offered in the tender are independently assessed and certified by leading gemological laboratories, ensuring clarity and authenticity.

The Spectrum of Colors: A Detailed Look

This final Beyond Rare™ tender boasts an extraordinary range of diamond colors, each possessing unique characteristics and appeal.

Pink Diamonds: The Argyle Legacy

Pink diamonds remain the most sought-after and valuable diamonds from the Argyle mine. Their rarity stems from the unique geological conditions required for their formation.

* Hue & Intensity: The value of a pink diamond is determined by its hue (ranging from purplish-pink to brownish-pink) and intensity (from faint to vivid). Vivid pink diamonds command the highest prices.

* Carat Weight: Larger pink diamonds are exceptionally rare, with stones exceeding one carat being particularly prized.

* Argyle Pink Diamond Grading: Rio Tinto’s own grading system for Argyle pink diamonds adds another layer of prestige and collectibility.

Red Diamonds: The Pinnacle of Rarity

red diamonds are the rarest color of all diamonds, and those originating from Argyle are particularly exceptional. Only a handful of true red diamonds have ever been discovered.

* Pure red hue: True red diamonds exhibit a pure, intense red color without any modifying hues.

* Investment Potential: Due to their extreme rarity, red diamonds are considered a highly secure and appreciating investment.

Violet,yellow,and White Diamonds: Completing the Collection

Beyond pink and red,the tender also includes a selection of violet,yellow,and white diamonds,each offering its own distinct beauty.

* Violet Diamonds: These diamonds exhibit a captivating purple hue,often with secondary pink or blue tones.

* Yellow Diamonds: Argyle yellow diamonds range in color from pale yellow to intense golden hues.

* White Diamonds: Exceptional white diamonds with superior clarity and cut are also included, showcasing the Argyle mine’s ability to produce diamonds of all colors.

Investment Considerations & Market Trends

the closure of the Argyle mine has significantly impacted the diamond market, driving up prices for pink and red diamonds.

* Supply & Demand: The limited supply of Argyle diamonds, coupled with continued strong demand, has created a favorable market for investors.

* Long-Term Value: Historically, Argyle pink diamonds have demonstrated strong long-term value thankfulness, making them an attractive investment option.

* Market Analysis: Industry experts predict that the value of Argyle pink diamonds will continue to rise in the coming years, particularly for stones with exceptional color and clarity.

Notable Diamonds from Previous Tenders (Case Studies)

Examining past Beyond Rare™ tenders provides insight into the potential value of diamonds offered in this final collection.

* The Argyle Pink Empress (2016): A 9.11-carat vivid pink diamond sold for $18 million, setting a record price per carat for a pink diamond.

* The Argyle Rose (2020): A 10.55-carat fancy vivid pink diamond, cut from a 20.02-carat rough diamond, was sold for an undisclosed sum.

* The Jardin (2018): A 20.02-carat rough pink diamond, showcasing the potential for exceptional cuts and brilliance.

Practical Tips for Potential bidders

For those considering participating in the tender, here are some practical tips:

1. Due Diligence: Thoroughly review the diamond certificates and grading reports provided by Rio Tinto and autonomous gemological laboratories.
2. Market Research: Research recent sales of comparable diamonds to understand current market values.
3. financial Planning: Determine your budget and bidding strategy before participating in the tender.
4. Expert Consultation: Consider consulting with a diamond expert or