Pink Diamond Tender

The Pink Diamonds Tender™ is the world recognised Leading Secondary Marketplace to buy & sell your Australian Pink Diamonds

Public Auction/
Tender No. 3 Closed

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Storage of Wealth since 1983

500% ↑ 2000 – 2020

The owner of the Argyle diamond mine, Rio Tinto, estimates that Argyle pink diamond prices have appreciated by 500% at the mine’s private tenders over the past 20 years. Now the mine has closed with demand for Argyle pink diamonds never greater as prices continue to rise.

Rare Australian Pink Diamonds

In 1979 a glittering pink diamond was discovered on top of an anthill in a remote part of the Kimberly wilderness in Western Australia. When the subsequent Argyle mine commenced production in 1983, this would be the beginning of an extraordinary story about the search for the very rarest of rare diamonds created over 1.6 billion years ago.

The Argyle Diamond Mine has produced over 90% of the world’s pink diamonds during the last 38 years. However, deposits were limited and the Argyle Diamond Mine ceased operations in November 2020. Whilst the demand and popularity of pink diamonds grows stronger supply from the world’s primary producer has come to an end.

They say that it would take twenty years to fill a crystal wine glass with the very finest pinks discovered at the Argyle Diamond Mine during its comparatively short history.™ is honoured to have been appointed to conduct the First Public Sealed Bid Tender of Australian Pink Diamonds. We are proud to have been entrusted with mandates from the esteemed collector, Ms Di Fitzpatrick of Brisbane, a South Australian financial corporation and eight private collectors to offer for sale so many beautiful and rare pink diamonds all of which are appearing on the secondary market for the very first time.

Current Tenders

The latest announcements, news and information around fashion, finance, business and who’s who in the diamond industry.

Tender No.3 / September 2022

Buy Diamonds

The buying process explained.

Sell Diamonds

The selling process explained.


Are pink diamonds going to increase in value?

You can arrange a private  viewing at the  Jewellery & Gem World Singapore Fair or in one of the following Australian capital cities, Sydney, Brisbane or Perth by appointment, subject to the usual requirements of KYC and personal identification.


We do not provide investment advice. We are a secondary market facilitator for buyers and sellers in return for a modest transaction fee. However, we can report the facts. ASX listed Rio Tinto owns and operated the Argyle diamond mine (1983 – 2020). Rio Tinto reports publicly that the selling prices of pink diamonds from its mine increased by 500% during the twenty years from 2000 to 2020. This has been reflected by massive increased prices paid by consumers. Yielding a good return on an investment can be more about the way you buy. If you buy well on the secondary market, it is more likely you will experience capital growth quicker than if you buy on the primary market.

We provide a money back guarantee that all the diamonds sold on our Tender platform are genuine. Our diamond specialists are respected industry veterans.

Firstly, our pre-tender estimates are in our experience fair, realisable price estimates for the secondary market. We do not accept items for sale if the seller has an inflated idea of their value. We accept roughly half of what we are offered. However, we recommend that you do your research. The very best way to make informed decisions is to engage a reputable Jeweller /gemmologist and pay them a modest fee for providing you with advice on how much to bid at the Tender. A reputable jeweller should be happy to provide such advice providing they are paid for their service.
We go to a great deal of trouble and expense to ensure the reproductions of colours in our catalogues are as true as is digitally possible. Nothing beats a personal inspection. However, with the incredible advancement of digital technology we take pride in the facilitation of remote sales far more so than our competitors.
Once again, we do not provide investment advice. However, many of our customers, both sellers and buyers are Self-Managed Super Funds (SMSF). Some are GST registered investment vehicles of all shapes and sizes. Regardless, you should seek the advice of your accountant.
Until now this has been a problem. The secondary market platform is new and highly successful. We make a lifetime guarantee to our buying customers that when they wish to sell, we will do so with their seller’s fee cut in half. Yes, their re-seller’s fee will be reduced to just 5%.

Independent Art industry lender will fund up to 50% of your purchase for up to 12 months interest free. In this instance the seller pays your interest costs. Enquiries tim.goodman @ or +61 481 780 302

We deliver door to door free of charge within Australia and may do so overseas subject to country of destination. We have partnered with an international high security logistics business to provide this safe and secure service.
Your diamond is covered by our comprehensive insurance until the goods are delivered to your door and an authorised person has signed a receipt. Yes, you can arrange insurance to cover your diamond/s whilst they are in your possession. There are numerous insurance companies and brokers proving this kind of cover.™ can insure and store your diamonds for a modest fee paid monthly. This service may be of particular use to a SMSF.


What are my options to sell my pink diamond?

  1. Jeweller
    You can ask a jeweller to sell your pink diamond on your behalf. They generally do not buy back diamonds rather, they prefer to take your diamond on consignment. You need to confirm that your property is covered by insurance whilst it is their care and custody. This process can take months or even years. It is not transparent as generally you are not able to determine the fee charged by the jeweller or the price they have sold the item for.

  2. Auction
    Auctioneers charge the seller a commission generally between 12 – 20%. Further, auctioneers charge the buyer a commission called a buyer’s premium. The buyer’s premium is is generally around 25% plus indirect taxes. This can compound a total of fees of more than 50%. Whist auctions are relatively transparent fancy-coloured diamonds are highly specialised and no auction house specialises in pink diamonds.

  3. Tender
    A™ Public Tender specialises in pink diamonds and is backed by a team of coloured diamond specialists. The seller’s commission is 10% and the buyer’s premium is 10% totalling 20%, around 60% less expensive than the fees charged by auctioneers. The Tender diamonds appear in the Tender catalogue with videos and high resolution still images enabling prospective buyers to bid remotely.

Many pink diamonds from the Argyle mine do not have or are missing their original Argyle certificates. In this instance we will arrange a certificate of origin from the DELTA Diamond Laboratory in Perth, Australia to confirm that your diamond originated at the Argyle mine.

We collect from our sellers without charge.

Our Public Tender provides a highly cost-effective sales method that is transparent, customer focussed, fast and secure promoted by a global marketing campaign in the hundreds of thousands of dollars driven by our social media specialists in London, Sydney and Hong Kong.

The proceeds from the sale of your property are processed through a client trust account.

It is possible that your property may not sell. Around 70% of the lots in a Tender sell. Prices achieved are generally within the pre-Tender estimate. If your diamond does not sell, we can return it to your door or we can continue to try sell it by private treaty between Tenders. There are no hidden fees for items not sold.

Apart from the above there are no risks.

No one knows the answer to this question. Fancy pinks have increased in value over the life of the Argyle mine (1983 – 2020). The mine closed in November 2020. It is more likely that the re-sale prices of pinks will increase rather than decrease. However, there are no guarantees just like with any valuable investment grade collectable item like art, collector’s cars, wine, coins and stamps etc.
This is an age-old question. The insurance value of any item is the estimated cost of immediate replacement of that item in the event of its loss or damage. This is the cost of the item in a retail shop so you can replace your lost goods in a fast and convenient way. The retailer has costs including, interest on capital, rent, staff, marketing and insurance. The retailer must charge a markup to cover these costs and make a profit. The retail price in a shop is generally around double or even triple the price at auction. However, due to the low fees charged at a Tender the realisable price achieved can be more like half to two thirds the current retail price, far better than the alternative selling methods and thus returning more cash to the seller.


The latest announcements, news and information around fashion, finance, business and who’s who in the diamond industry.

Tender No.1 / July 2021

Tender No.2 / August 2021