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Pallinghurst’s Gemfields earns record US$55 million in Singapore ruby auction
Of the 76 lots offered, 71 were sold; average price of US$90.81 per carat, a 49 per cent premium to the last auction of similar qualities in June 2017
By: Diamond World News Service
Nov 14 2017 10:54AM
Reference: 15801  


Pallinghurst is pleased to announce the results of an auction of rough rubies held by its 100 per cent subsidiary, Gemfields plc (“Gemfields”), in Singapore from 6 - 10 November 2017. The rough rubies were extracted by Montepuez Ruby Mining Limitada (“MRM”, which is 75 per cent owned by Gemfields and 25 per cent by local partner Mwiriti Limitada) from the licence held by MRM in the Montepuez district of Mozambique.

Highlights – Ruby Auction

Auction revenues of US$54.96 million, the highest figure attained at any Gemfields auction;

Of the 76 lots offered, 71 were sold (93 per cent);

Average price of US$90.81 per carat, a 49 per cent premium to the last auction of similar qualities in June 2017;

605,229 carats sold out of the 682,508 carats offered (89 per cent); and

The nine Montepuez auctions held since June 2014 have generated US$335 million in aggregate revenues.

Gemfields’ ninth auction of rough rubies from Montepuez saw 54 companies placing bids. The auction offered high, medium and commercial grade rough rubies in both untreated and treated form. All treated lots were offered using industry-accepted treatment and on a fully disclosed basis.

The consistency of supply and the reliability of the Gemfields grading system continues to be well received by buyers as it reduces risk, improves manufacturing efficiencies and increases ability to meet consumer demand.

The auction generated total revenues of US$54.96 million at an average realised price of US$90.81 per carat.

The proceeds of this auction will be repatriated to MRM in Mozambique, with the production tax due to the Government of Mozambique being paid on the full sales price achieved at the auction.

Given that the quality mix offered at this auction comprised a blend of varying qualities and sizes of material, a direct top-line comparison with the results of previous auctions is not feasible. On a quality-for-quality basis however, the per carat prices demonstrated strong demand, and reflected Gemfields’ experiences at recent industry events, including the first ever World Ruby Forum which took place in Bangkok, Thailand on the 4th of November 2017.

The auction results, which saw 71 of the 76 lots offered being sold, provided a high level of comfort in respect

of Gemfields’ understanding of the current market demand profile, which was further supported by customer feedback received during the auction.

The results of the five most recent Montepuez auctions are summarised in the table below:

Dec ‘15
Jun ‘16
Dec ‘16
Jun ‘17
Nov ‘17
Dates 14-18 Dec
13-19 Jun
12-16 Dec
10-14 Jun
6-10 Nov
Location Singapore Singapore Singapore Singapore Singapore
Type Rough Ruby (Higher and Medium Quality) Rough Ruby & Corundum (Higher, Medium and Commercial Quality) Rough Ruby & Corundum (Higher, Medium and Commercial Quality) Rough Ruby (Higher, Medium and Commercial Quality), no Corundum Rough Ruby (Higher, Medium and Commercial Quality), no Corundum
Carats offered 92,136 1,601,145 1,372,145 1,048,687 682,508
Carats sold 90,642 1,516,459 1,094,673(a) 895,849 605,229
No. of lots offered 49 75 71(a) 83 76
No. of lots sold 45 71 59(a) 78 71
Percentage of lots sold 92% 95% 83%(a) 94% 93%
Percentage of lots sold by weight 98% 95% 80% 85% 89%
Total sales realised at auction US$28.8 million US$44.3 million US$30.5 million(a) US$54.8 million US$55.0 million
Average per carat sales value US$317.92/carat US$29.21/carat US$27.88/carat(a) US$61.13/carat US$90.81/carat

(a) Please note that the December 2016 ruby and corundum auction results have been amended to include a lot that was not previously included in the original announcement made by Gemfields on 19 December 2016. Revenues have increased by US$0.1 million.

The specific auction mix and the exact quality of the lots offered at each auction vary in characteristics such as size, colour and clarity on account of variations in mined production and market demand. Each auction naturally contains a degree of variation in overall quality composition and therefore the results of each auction are not always directly comparable.

Sean Gilbertson, CEO of Gemfields, commented:

“The strong revenues from this auction provide a solid boost to the Gemfields cash position and underscore the fact that market demand for responsibly sourced rubies from Mozambique remains in fine fettle.

We pay tribute to the teamwork at Gemfields, covering all the disciplines involved in delivering successful auctions: exploration, mining, processing, grading & sorting, auction composition & logistics, marketing & public relations and of course its Corporate Social Responsibility programme. It is a distinct privilege to work with a team of this calibre.

As always, we extend our thanks to our loyal customers, to Mwiriti Limitada - our partners in MRM - and to the Government of the Republic of Mozambique for their collective efforts and support in making this auction and the outcome possible.”


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