Selling Gold and Diamond Jewellery in Johannesburg: A Seller’s Guide

Key takeaway: To sell gold and diamond jewellery in Johannesburg, take your pieces to a transparent buyer who weighs and tests them in front of you, prices gold against the live spot price, and pays the same day. The Gold Avenue in Illovo, Sandton does exactly this, by cash or EFT.

Selling jewellery you no longer wear should be straightforward, but for many people in Johannesburg it feels the opposite. Inherited rings, broken chains, single earrings and dated pieces sit in a drawer for years because the seller is unsure what they are worth or who to trust. This guide explains how the sale actually works, what determines the price of your gold and diamonds, and how to walk away confident that you were paid fairly.

The Gold Avenue was built around that exact problem. We buy gold and diamond jewellery from the public at our premises in Illovo, and our whole process is designed so you can see how the offer is reached, rather than being handed a number with no explanation.

What jewellery can you sell?

Most gold and diamond jewellery has resale value, whether or not it is still wearable. We regularly buy the following from sellers across Johannesburg and the wider Gauteng area:

• Gold rings, bracelets, chains, necklaces, earrings and pendants
• Diamond jewellery, including engagement and dress rings
• Broken, tangled or single-piece items where the gold still holds value
• Inherited and estate jewellery
• Gold coins and Krugerrands
• Luxury watches

A piece does not need to be in perfect condition to be worth selling. A snapped chain or a ring with a missing stone still contains gold, and that gold is priced on its weight and purity regardless of the damage.

How gold jewellery is valued

The value of a gold item comes down to two things: how much gold it contains, and what gold is worth on the day you sell. Understanding both removes most of the guesswork.

Weight and purity

Gold jewellery is rarely pure gold, because pure gold is too soft to hold a setting. It is alloyed with other metals, and the proportion of actual gold is described by its karat. Twenty-four karat is pure gold, eighteen karat is seventy-five percent gold, and so on down the scale. A heavier, higher-karat piece contains more gold and is therefore worth more. When you sell, the buyer weighs the item and tests its purity to work out exactly how much gold is present.

The live gold price

Gold trades on a global market and its price moves throughout the day. A fair buyer prices your jewellery against that live spot price at the moment of valuation, not against an outdated figure. This is why two visits a few weeks apart can produce slightly different offers for the same item, and why transparency about the current price matters so much.

How diamond jewellery is valued

Diamonds are assessed differently from gold, because their value rests on individual characteristics rather than weight alone. The widely recognised framework is the four Cs, developed by the Gemological Institute of America.

• Carat is the weight of the diamond. Larger stones are rarer and command higher value.
• Cut describes how well the stone has been shaped and faceted, which governs how it reflects light.
• Colour grades how close to colourless the diamond is, with less colour generally being more sought after.
• Clarity measures the presence of internal marks and surface blemishes.

If your diamond jewellery came with a grading certificate or a hallmark indicating the gold purity, bring it along. It helps speed up the assessment, though a good buyer will still examine and test the pieces independently.

How selling at The Gold Avenue works

We keep the process to four clear steps so that you always know what happens next.

1. Get in touch. Contact our team by phone, WhatsApp or online chat to ask questions and let us know what you are looking to sell.
2. Book a valuation. Bring your items to our premises at Illovo Point in Illovo, Sandton, at a time that suits you.
3. Receive your offer. We weigh and test your coins and jewellery in front of you, and price them on the live gold and market price together with the condition of each piece.
4. Get paid the same day. If you accept the offer, we pay you immediately by cash or EFT.

There is no obligation to sell after a valuation. You are free to take your items and the offer away to think it over.

How to get the best price for your jewellery

A few practical habits help you sell well and avoid being underpaid.

• Sort before you sell. Separate gold pieces from costume jewellery so the valuation focuses on items with genuine precious-metal content.
• Do not melt or alter anything. Some jewellery is worth more intact than as scrap gold, particularly branded or finely made pieces. Let the buyer assess it as it is.
• Bring documentation. Certificates, receipts and original boxes for diamonds and watches support a stronger offer.
• Ask how the offer is calculated. A trustworthy buyer will explain the weight, the purity reading and the price applied. If a buyer will not show you that, be cautious.
• Choose an established buyer. A fixed premises, a real team and a clear process matter far more than a roadside cash-for-gold sign.

What about tax and admin?

Selling personal jewellery is a private transaction, but it is sensible to keep a record of any sale for your own files. Tax treatment of the proceeds depends on your circumstances, and SARS sets the rules that apply. If you are selling high-value items or settling an estate, it is worth speaking to your own tax adviser or accountant so that everything is handled correctly. We are happy to provide a clear record of the transaction on our side.

Why sell to The Gold Avenue

The Gold Avenue was founded as a transparent, five-star alternative to the traditional pawn-and-gold-buying trade. Rather than guarding the numbers, we weigh and test your items in front of you and explain how the offer is built. Owner and managing director Trent Saldsman also works with an international dealer network, notably in the UAE, which allows us to pay local sellers more competitively than many buyers who only sell on within South Africa.

If you are ready to turn unworn gold and diamond jewellery into cash, here is how to reach us:

• Visit us: Illovo Point, 68 Melville Road, Illovo, Sandton, 2196
• Call: 010 109 0080
• WhatsApp: 076 393 5429

Book a valuation, see exactly how your offer is calculated, and get paid the same day by cash or EFT.

Frequently asked questions

Can I sell broken or damaged gold jewellery?

Yes. Broken chains, single earrings and rings missing stones still contain gold, and gold is valued on its weight and purity rather than its condition. Bring damaged pieces in and we will assess the precious-metal content.

Do I need a certificate to sell a diamond?

No, a certificate is not required. It is helpful and can speed things up, but we examine and test your diamond jewellery independently as part of the valuation, so you can still sell without paperwork.

How quickly will I be paid?

If you accept our offer, we pay you the same day, either in cash or by EFT, once your items are weighed and tested at our Illovo premises.

Am I obliged to sell after a valuation?

Not at all. A valuation is free of obligation. If you would rather hold on to your jewellery or think the offer over, you are welcome to take your items and leave.

Learn More

At The Gold Avenue, we simplify the process of selling your valuable assets. From luxury watches and Krugerrands to gold, diamond jewellery, and more, we offer fast, safe, and convenient buying services, coupled with an enjoyable experience. We stand by our promise to provide the best price for your items.

Krugerrands: Sell your Krugerrands swiftly and securely.

Gold Jewellery: Turn your gold jewellery into instant cash.

Gold Coins: Get the best price for your gold coins.

Diamonds: Exchange your diamonds for a competitive price.

Watches: Luxury watches like Rolex and others are welcome.

In need of a cash loan? We’ve got you covered.

Selling to The Gold Avenue is simple:

Contact Our Team: Reach out to our team via call, WhatsApp, or online chat. Describe the luxury items you want to sell.

Book an Appointment: Set a valuation appointment at a time convenient to you. Our safe and secure premises are located in Johannesburg.

Get an Offer: Our expert team will provide a quick and fair valuation. We’re committed to long-term relationships, guaranteeing the best price.

Money in Your Bank: We offer immediate payments, directly into your bank account, either through cash or EFT.

Ready to start selling? Book an Appointment