Guide to Selling 18K Gold Jewelry for Optimal Returns

Have you ever wondered how much those unused 18K gold jewelry pieces in your drawer are really worth? In a gold recycling market filled with varying standards, how can you avoid being lowballed and truly maximize your return?

18K gold, also known as 18kt, 18k or 750 gold, is an alloy containing 75% pure gold. The remaining 25% consists of other metals such as copper, zinc or silver. These additional metals give 18K gold greater hardness and durability, making it ideal for jewelry. However, this alloy composition also creates opportunities for unethical dealers to exploit information gaps and offer unfairly low prices.

As of November 2025, the market "spot" price for 18K gold is approximately £74.54 per gram. However, this is merely a reference price. Any company offering only the spot price should be viewed with caution, as the actual recycling price typically falls below this figure.

Many gold recycling companies take advantage of consumers' limited knowledge about gold valuation. Some engage in opaque pricing practices or impose hidden charges such as shipping fees or service fees. Without understanding the true value of 18K gold per gram, sellers can suffer significant financial losses.

While all 18K gold contains 75% pure gold, the remaining 25% alloy composition affects its final color. Common 18K gold colors include:

• 18K yellow gold
• 18K rose gold
• 18K white gold

Jewelry purchased in the UK typically carries hallmarks that certify its purity. These small stamps found inside rings or on the back of earrings can accurately identify gold content. For items purchased abroad or without hallmarks, professional testing methods like XRF analysis can determine authenticity.

The value of 18K gold jewelry depends on two key factors:

• The current gold "spot" price at time of sale
• The item's weight in grams, minus any gemstones or non-gold components

Multiply the current recycling price per gram by your item's weight to determine its base value. This calculation applies to jewelry, certain gold watches (without movements) and even dental gold. Damaged items still retain value if made from 18K gold.

Certain jewelry, watches or collectibles (like gold coins) may have value beyond their gold content. Brand-name watches and coins sometimes command premium prices above their base gold value.

"Gold-plated" items combine a layer of 18K gold with base metals like brass or copper to create the appearance of solid gold while improving durability. Gold-plated silver consists of a thick gold coating over a sterling silver base.

As internationally traded commodities, precious metal prices change constantly. Transparent dealers provide real-time market price updates to allow accurate comparisons.

Significant price differences between dealers often indicate varying business practices. Some may quote prices surprisingly close to spot prices while actually paying 40-60% of an item's true value. Careful examination of terms and conditions can reveal hidden deductions.