Welcome to Alpha Buying Co – Buyers of Jewellery, Gold, Watches and Diamonds in Sydney.

If you are looking to sell your gold, Alpha Buying Co offers a professional, discreet and convenient service. We also buy your silver, diamonds, jewellery or watches. We are located in the heart of the Sydney CBD and operate as jewellery consultants and agents for buying and selling.

Alpha Buying Co are buyers of gold and silver in all forms, as well as jewellery, gemstones and watches, and offer professional services to businesses and individual buyers and sellers alike.

Our Services:

We Buy – we buy gold and silver in any form, jewellery, gemstones, diamonds
and watches.

Consultants – we advise and assist in purchasing diamonds and major jewellery items.

Bridal Services – we work with you to find the perfect diamond for your engagement ring and wedding ring


Great experience shopping at Alpha. Sas knows what he is talking about, is fair with his prices (for both selling and buying) and generally just offers a really smooth and effortless shopping experience. You can see by the unique and beautiful stock that his knowledge is endless. Highly recommend!

Taryn Gold

Went to alpha buying company last week to sell some old jewellery. Sas was really great to deal with and I was happy with the outcome. Highly recommend this place if you want to sell valuables!

Vashti McKendry

For anyone needing to buy or sell watches and/or jewellery I had excellent service from Sas at Alpha Buying Co who has a wealth of knowledge about gold, silver, diamonds, watches and all jewellery… Easy to find and super convenient location near the QVB; I just popped in on my lunch break. I’ll be going back and highly recommend that others do too!

Ariela Bard

I can highly recommend Alpha for buying / selling jewelry, watches etc. Having dealt with Sas on many occasions, he has substantial experience, with an encyclopedic knowledge of a wide range of items. Also seems to have unique and hard to find pieces on offer along with fair buy pricing. I’ve been highly satisfied with all of our transactions. Conveniently located near the QVB.

Samuel Jackson

Sas was incredible to deal with, so warm, honest, friendly and really made me feel so comfortable. I recommend and trust him with all my buying and selling needs. Thanks so much Sas!!

Micki Persky

Always have great dealings with Sas. Amazed at the wealth of knowledge he has. Highly recommended!

Ivan Teh

Sas is professional and easy to deal with. His knowledge about gemstones and jewelry together with his friendly manner made a difficult and emotional experience much easier.

Michael Chant

Why Choose Alpha Buying Co as Your Gold, Jewellery, and watch Buyer?

  • Deal directly with a certified, practicing Gemmologist with 40 years’ jewellery industry experience
  • Complete privacy assured
  • Appointment only to minimise waiting time
  • Convenient CBD location
  • We’ll try to beat any other genuine offer
  • If we can’t buy from you, we may be able to suggest an alternative way for you to sell your valuables

ABC Notice Board

We are now looking for old or modern classic brand watches.

Competitive prices paid for gold and silver in all forms, as well as jewellery, watches and good quality gemstones.
We encourage you to shop around before making an appointment.

For reasons of confidentiality and convenience,


Please call us or fill in the form to make your appointment.

Sas Ambarchi F.G.A.A Dip. D.T

Phone Number

T: 02 9223 5778

F: 02 9223 5779

M: 0412 321 199


Suite 209/147 King Street, Sydney, 2000

(Between Pitt St and Castlereagh St, Opposite MLC Building)

If you would like to contact us, simply fill out the form below and hit send.