Questions?

In the UK, any gold item weighing more than 1 gram must be legally hallmarked to verify its purity.

Authentic 18ct gold will feature a "750" fineness mark as part of a full UK hallmark, indicating 750 parts of pure gold per thousand.

No, silver items are exempt from hallmarking if they weigh less than 7.78 grams.

The four official offices are located in London, Birmingham, Sheffield, and Edinburgh.

A 925 stamp is a manufacturer's mark and does not replace a legal hallmark, which must also include a sponsor's mark and an Assay Office symbol.

Extremely light gold jewellery is exempt from hallmarking if the precious metal content weighs less than 1 gram.

The "375" mark indicates that the piece is 9ct gold, containing 37.5% pure gold.

On average, a custom-designed engagement ring takes between 6 to 8 weeks to complete from the final design approval.

Most custom rings can be resized by a professional goldsmith, though it is ideal to measure accurately beforehand as resizing can sometimes create a minor weak point in the band.

Platinum is the most durable and wear-resistant choice for daily wear, as it does not thin over time and is naturally hypoallergenic.

Yes, white gold usually requires rhodium re-plating every few years to maintain its bright, silvery-white finish.

It is highly recommended to match the metals to prevent the harder metal from wearing down the softer one over time.

The 4 Cs are Colour, Clarity, Cut, and Carat weight, which together determine a diamond's quality and value.

Many UK jewellers offer a redesign service that allows you to incorporate sentimental stones into a new, contemporary setting.

Platinum is generally more expensive due to its density and rarity, although it requires less long-term maintenance than white gold.

While 18ct gold is more valuable, 9ct gold is harder and more resistant to daily scratches because it contains a higher percentage of alloy metals.

Palladium is an excellent alternative as it offers similar durability and a natural white sheen but is lighter in weight.

Platinum and palladium are naturally hypoallergenic and the safest choices for those with sensitive skin.

Rose gold gets its warm pink hue from a higher concentration of copper mixed with pure gold.

While affordable, silver is generally too soft for a lifelong engagement ring and is prone to tarnishing and bending over time.

A brushed finish provides a textured, satin-like appearance that is better at hiding everyday scratches than a high-polish finish.

Many reputable UK jewellers, including Goldsmiths, provide interest-free finance options to help customers spread the cost of luxury items over several months.

Look for membership in the National Association of Jewellers (NAJ), which guarantees high standards of service and ethics.

Bespoke or custom-made items are often non-returnable, so you should always check the specific returns policy before placing an order.

Yes, lab-grown diamonds share the same physical and chemical properties as natural diamonds, making them equally durable for daily wear.

You can clean gold pieces using warm soapy water and a soft-bristled brush, followed by a gentle polish with a lint-free cloth.

It is wise to insure high-value items immediately to protect against loss, theft, or accidental damage based on their full replacement value.

A GIA certificate is an independent grading report from the Gemological Institute of America that confirms the diamond’s specific 4C characteristics.

Gold-plated items only have a thin surface layer of gold over a base metal, whereas solid gold has a consistent purity throughout the entire piece.

No, 24ct gold is 100% pure and too soft for daily wear, as it can easily bend or scratch.

Yes, new customers can often claim an exclusive 10% discount on their first full-price purchase by signing up for the official newsletter.

Verified Blue Light Card members can access a unique code for 20% off selected watches and jewellery brands.

Students can secure a 15% discount by verifying their status through platforms like Student Beans, UNiDAYS, or Totum.

You can frequently find codes for 20% off selected 9ct and 18ct gold, platinum, or palladium wedding rings.

Most promotional codes strictly exclude luxury brands such as Rolex, Cartier, OMEGA, and TAG Heuer.

During peak periods like Black Friday, Goldsmiths often releases "EXTRA10" codes for an additional 10% saving on already reduced clearance lines.

Specific high-value vouchers typically require a minimum spend of £350 to activate the £50 discount at checkout.

Standard delivery is usually free on all orders over £200, so a separate code is rarely needed for shipping.

Promotional codes are generally restricted to full-price new items and cannot be applied to the pre-owned or vintage collections.

No, promotional codes cannot be used in conjunction with Tesco Clubcard tokens, insurance cards, or other financial schemes.

Active service members and veterans can often claim a 20% discount by verifying their status through professional platforms like Defense Service Perks or Blue Light Card.

You should enter your code in the "Got a promotional code?" box located on the basket page before proceeding to secure checkout.

Smartwatches and connected devices are typically excluded from general jewellery discounts, though specific Garmin-only codes occasionally appear.

Select diamond jewellery and engagement rings are eligible for 20% off during specific seasonal promotions.

Teachers can access a 20% key worker discount by verifying their employment through recognized third-party platforms.

Yes, signing up for the newsletter usually provides an instant 10% off code for your next full-price purchase.

General jewellery codes for 25% off often apply to popular brands like Swarovski, Ted Baker, and Michael Kors.

While Click & Collect is free, there is no specific discount code awarded solely for choosing in-store pickup.

Discount codes are usually not valid when using consumer credit or interest-free finance options.

Seasonal events often feature codes for up to 50% off selected gift collections.

The Blue Light Card unique codes are generally intended for online use, although some stores may honor them if you present your physical card.

The validity of codes varies, but many exclusive offers are set to expire at the end of 2026.

Yes, the purchase of gift cards and reloadable shopping cards is excluded from all promotional code applications.

Specific codes for 20% off Zenith or selected Tissot models are frequently available as online exclusives.

Members of the Goldsmiths loyalty or newsletter list may receive a personalized discount code during their birthday month.

Check that your items are not on the exclusion list and that you have met the minimum spend requirement for that specific code.

General jewellery promo codes for 25% off typically include 18ct gold earrings, provided they are full price.

High-value purchases may qualify for free gift cards worth up to £350 rather than a direct percentage discount code.

Social care workers can claim a 20% discount using a code obtained through the Blue Light Card platform.

No, Goldsmiths only allows one discount code to be applied per transaction.