" Investment diamonds, investment stones, rare jewelry, world class art pieces and statues"



The website Minerough.com is a service provided by Manja-Thai Company Limited.
The company main activity is Custom Jewelry Creation and production for brands (since 2006) described here:
www.jewelry-project.com

Along the years we developped a network of professionals engaged in other activities in connection with the Luxury Goods Industry sector such as: Rough Gemstones Mining and Lapidary, high value Diamonds and Precious Stones, as well as Exclusive Jewelry and Art pieces (mostly statues, sculptures, and old clocks) owned by world class Thai collectionners.

We will be acting as traders in such activities in order to connect eventual customers to the owners of rare artifacts, diamonds and precious stones. Our role is to facilitate transactions within a professional frame for negociations, inspections, and transactions in a confidential, and yet transparent process.

Most items proposed on our website are located in Bangkok, Thailand at the time we publish them online, but some items might be located in other countries or proheminent cities such as Dubai, Paris, Geneva or New York (disclosed when is it the case).

We do not store any item at our facility.
All viewings and inspections will take place through a bank, Malca-Amit or Brink's services, as well as Art and Antique Galleries.

We do not engage in anonymous negociations through middle-men or agents, unless they can provide a mandate from the buyer duly witnessed by a lawyer office.
Any offer should be brough forward by properly identified individuals or corporate entities unless represented anonymously by a lawyer office able certify the release of the identity of a buyer at the time of the transaction.

The director Mr Yannick Mandaba (profile) has been working in te field of gemtones and jewlery since 1999 as a gemologist graduated from HRD-Antwerp, Belgium, as well as from the University of Sciences in Nantes (France). We are working closely with experts in the fields of Arts, Antiques and gemstones apraisal, and under the supervision of a cabinet of athorneys in Bangkok and eventually we can be domiciliated in Geneva also through a cabinet of athorneys, allowing a secured and legal frame for transactions in Asia and Europe.



It is quite difficult to keep the offers updated in real time because some items are available for sale in retail shops and galleries. Please contact us to check if the items of interest are still available for sale within our network.

For confidentiality and security reasons, some certificate numbers and other documents (such as Artifact recent history, artifact owner, artifact location, embassy documents of transfer for artifacts of national value) might be communicated only after a preliminary communication with the interested parties and might not be visible online without an access code to exclusive private sections of the website and downloads.

No one within our organisation will ever ask for any banking information of any sort from a potential customer or agent.
Any payment will be requested with an authorized invoice from Manja-Thai Co., Ltd, signed by one of the directors, payable on the corporate registered bank account (Bank account name: Manja-Thai Co., Ltd only) or as directed by our lawyer's office.

High value items will be handled via sale contract through our lawyer office.




Useful Links about Jewelry and Gemology

Laboratories & schools
www.aigslaboratory.com
(A.I.G.S. Laboratory)
www.gia.edu
GIA)
www.gemresearch.ch
(GRS)
www.igiworldwide.com
(IGI)
www.ssef.ch
(SSEF)
www.gubelinlab.com
(Gubelin)
www.gemnantes.fr
(D.U.G. France)
Knowledge
www.fieldgemology.org/
Field trips in the mines
http://webmineral.com
About minerals
www.ruby-sapphire.com
The best seller
www.mindat.org
Mineral database
www.themelis.com
Another famous gemologist
http://gemme.la.rca.fr
Blog gemmology and opals
www.opalinda.com
Blog gemmology and opals
beyond4cs.com
Free gemology courses and resources
Forums & Networks
www.gemologyonline.com
The rendez-vous gemology
www.geminterest.com
French equivalent
www.pricescope.com
All about prices
www.diamondse.info
Mostly about prices
http://polygon.net/
All about everything
www.ganoksin.com
All about everything
Associations
www.thaigemjewelry.or.th
(TGJTA)
www.crg-dug.frm
Gemology Research center
www.gemstone.org
(ICA)
www.agta.org
(AGTA)
www.gemsociety.org
(IGS)


This page is relative to trading of investment diamonds, investment stones, high value jewelry and world class art pieces and artifacts such as statues and sculptures.our general procedures and services. We are a jewelry manufacturer in Thailand making gold jewelry and silver jewelry production in our jewelry factory, which is more a jewelry workshop dedicated to provide personalized services. We also engage in trading of high value luxury goods and art pieces. Our mission is to bring knowledge support and a secured legal frame to high value transactions to help customers benefit from our network of Thai diamond and gemstones dealers as well as Thai art collectioners