Yes. We supply certified natural and lab-grown diamonds from internationally recognised grading laboratories, including GIA (Gemological Institute of America) and IGI (International Gemological Institute). A diamond certificate independently assesses the stone's cut, colour, clarity and carat weight, giving you confidence in exactly what you're purchasing. Every certified diamond will be supplied with its original grading report. If you're unsure whether a particular diamond includes certification, simply contact us and we'll be happy to advise.

GIA and IGI are two of the world's leading independent diamond grading laboratories. GIA is widely recognised as the global benchmark for grading natural diamonds and is known for its strict and consistent grading standards. IGI is one of the most respected laboratories for lab grown diamonds and also grades natural diamonds. Both laboratories provide independent reports detailing a diamond's cut, colour, clarity and carat weight. Choosing between GIA and IGI usually depends on the type of diamond you're purchasing rather than one laboratory being better than the other.

Yes. The Carat Club supplies both natural diamonds and lab grown diamonds, allowing you to choose the option that best suits your budget, preferences and project. Whether you're searching for a certified loose diamond, calibrated melee, matched pairs or coloured gemstones, we offer carefully selected stones for both jewellery professionals and private customers.

Lab grown diamonds are real diamonds created using advanced technology in carefully controlled laboratory environments. They have exactly the same chemical composition, physical properties and optical brilliance as natural diamonds. The only difference is how they're formed—natural diamonds develop underground over billions of years, while lab grown diamonds are produced over a period of weeks. Because they're genuine diamonds, lab grown stones can be graded, certified and used in jewellery in exactly the same way as natural diamonds.

Yes. Lab grown diamonds are genuine diamonds, not diamond simulants such as cubic zirconia or moissanite. They are made from pure carbon and share the same hardness, brilliance and durability as mined diamonds. Even trained gemologists require specialist equipment to distinguish between natural and lab grown diamonds. The only difference is their origin.

HPHT (High Pressure High Temperature) and CVD (Chemical Vapour Deposition) are the two main methods used to create lab grown diamonds. Both processes produce genuine diamonds with the same physical and optical properties as natural diamonds. The manufacturing process itself doesn't determine the beauty or quality of the finished stone. Instead, factors such as cut, colour, clarity and overall craftsmanship remain the most important considerations when choosing any diamond.

Lab grown diamonds eliminate the need for traditional mining but still require significant amounts of energy during production. Natural diamonds, meanwhile, support thousands of jobs and communities around the world through responsible mining operations. Rather than claiming one option is universally more sustainable, we believe it's important that customers have clear information to help them choose the diamond that best aligns with their priorities, values and budget.

Yes. Responsible sourcing is extremely important to us. We only work with trusted suppliers who follow strict ethical sourcing standards, and all natural diamonds supplied by The Carat Club comply with the Kimberley Process Certification Scheme. Our commitment is to supply diamonds with integrity, transparency and complete confidence. You can learn more by visiting Our Commitment to Responsible Sourcing page.

The Kimberley Process is an international certification scheme designed to prevent conflict diamonds from entering the global diamond supply chain. Participating countries certify shipments of rough diamonds before they enter the market, helping ensure they originate from legitimate and conflict-free sources. The Carat Club only works with suppliers who comply with the Kimberley Process and responsible sourcing practices.

Conflict-free diamonds are diamonds that have been sourced and traded in accordance with international regulations designed to prevent the funding of armed conflict. Every natural diamond supplied by The Carat Club is sourced through trusted suppliers who comply with the Kimberley Process and our own ethical sourcing standards.

Melee diamonds are small diamonds commonly used in fine jewellery, including pavé settings, halo engagement rings, wedding bands and dress jewellery. They are available in a wide range of calibrated sizes, colours and clarities. The Carat Club supplies both natural and lab grown melee diamonds for jewellery manufacturing, repairs and bespoke commissions.

We supply a wide range of calibrated melee diamonds in numerous sizes, colours and clarities. Whether you're replacing a single missing stone, manufacturing jewellery or producing larger quantities for trade, we can help source the correct size for your project. If you can't find the exact size you require on our website, simply contact us or WhatsApp us and we'll be happy to help.

Yes. If you can't find the exact diamond, gemstone or matched pair you're looking for, we offer a bespoke sourcing service through our trusted network of suppliers. Simply let us know your requirements—including shape, size, certification or budget—and we'll do our best to source suitable options for you.

Yes. Alongside round brilliant melee diamonds, we can source a variety of fancy shape melee diamonds, subject to availability. If you're looking for oval, pear, marquise, princess or other calibrated fancy shapes, simply let us know your requirements.

Matched pairs are two diamonds or gemstones carefully selected to closely match each other in size, colour, clarity, cut and overall appearance. They're commonly used for earrings, trilogy side stones and jewellery designs where symmetry is important. We offer matched pairs across a variety of diamond and gemstone types.

Yes. Alongside our diamond collection, we supply a carefully selected range of coloured gemstones including sapphires, emeralds, rubies, tanzanites, tsavorites and amethysts. If you're searching for a particular gemstone, size or quality that isn't listed on our website, our sourcing service may be able to help.

Absolutely. If you can't find exactly what you're looking for online, we can source natural diamonds, lab grown diamonds, coloured gemstones, matched pairs and specialist stones through our trusted network of suppliers. Simply contact us or WhatsApp us with your requirements and we'll do our best to help.

For specialist requirements, we may be able to arrange custom-cut diamonds through our trusted suppliers. Whether you're looking for a unique shape, specific dimensions or a bespoke diamond for a jewellery project, we can help. Learn more about our Custom Diamond Cutting service or contact us to discuss your requirements.

Yes. We regularly supply replacement diamonds for jewellery repairs, restoration work, resizing projects and bespoke commissions. Whether you're a professional jeweller or replacing a missing stone in a sentimental piece, we'll help you find the closest possible match.

Absolutely. While we proudly supply jewellers, jewellery designers, manufacturers and trade professionals, everyone is welcome to purchase from The Carat Club. Whether you're buying a single loose diamond, sourcing gemstones for a personal project or replacing a missing stone, you'll receive the same friendly, knowledgeable service.

Yes. We work closely with jewellers, jewellery designers, manufacturers and other trade professionals throughout the UK. If you regularly purchase diamonds or gemstones, please get in touch to discuss trade pricing, ongoing supply and how we can support your business.

Most of our products have no minimum order quantity, allowing you to purchase exactly what you need. Some specialist products or bespoke sourcing requests may have minimum purchase requirements, but we'll always let you know this before your order is confirmed.

Delivery times vary depending on the product you've ordered. Many in-stock items are dispatched quickly, while specially sourced diamonds, fancy shape melee or bespoke orders may require additional time. If your order has a longer lead time, we'll keep you updated throughout the process so you always know when to expect delivery. If you need an item by a specific date, please contact us before placing your order and we'll do our best to accommodate your requirements.

Yes, where possible. Many in-stock products are available with next-working-day delivery within the UK. For made-to-order or specially sourced items, delivery times will vary depending on availability and production.

Yes. We offer free UK delivery on all orders, giving you a secure and convenient way to receive your diamonds or gemstones at no extra cost. For customers outside the UK, we also offer free international delivery on orders over £50. Orders below this value will have shipping costs calculated at checkout based on the destination and delivery service selected. All orders are carefully packaged and dispatched using fully tracked services, so you can follow your parcel from dispatch through to delivery.

We deliver throughout the United Kingdom and to most countries worldwide. During checkout, you'll be able to select your delivery country from the available list. If your location isn't shown, don't worry—simply contact us before placing your order. We'll be happy to check whether we can arrange delivery to your destination and provide a shipping quote if required. All orders are carefully packaged and dispatched using trusted, fully tracked courier services to ensure your diamonds and gemstones arrive safely and securely, wherever possible.

Delivery charges are calculated automatically during checkout based on your order value, delivery destination and the shipping service selected. All shipping costs are clearly displayed before payment, so you'll always know exactly what you're paying before completing your purchase.

We use trusted, fully tracked and insured courier services to ensure your order arrives safely and securely. The courier used may vary depending on your order and delivery location, but we'll always provide tracking details once your order has been dispatched.

Yes. Once your order has been dispatched, you'll receive a shipping confirmation email containing your tracking information. You can use this to follow your orders progress from dispatch through to delivery. If you haven't received your tracking details or need any assistance, simply contact us and we'll be happy to help.

Yes. All orders are carefully packaged and shipped using fully insured delivery services. This provides additional peace of mind while your order is in transit. If your parcel is delayed, damaged or appears to be missing, please contact us as soon as possible so we can investigate and resolve the issue.

If you need to make changes to your order, please contact us as soon as possible. We'll always do our best to accommodate your request before your order has been processed or dispatched. Unfortunately, once an order has been shipped or a bespoke item has entered production, changes or cancellations may not be possible.

Yes. We want you to shop with confidence. If you wish to return an eligible item, please contact us first and we'll guide you through the returns process. Please note that certain products, including bespoke or made-to-order items, may not be eligible for return. Full details can be found in our Returns Policy.

If you're ordering from outside the UK, your order may be subject to customs duties, import taxes or local handling fees, depending on your country's regulations. Where possible, we'll contact you before dispatch if any charges can be paid in advance. If this isn't available, your local customs authority or courier will contact you directly with details of any fees that need to be paid before your parcel can be delivered. Unfortunately, these charges are determined by the destination country and are outside of our control. If you have any questions about international shipping, please get in touch before placing your order and we'll be happy to help.

If your purchase is eligible for return, you have 30 days from the date you receive your order to notify us that you'd like to return it. Returned items should be sent back in their original condition and packaging. Once your return has been received and inspected, any approved refund will be processed as quickly as possible. For full details, please refer to our Returns Policy.

Although every order is carefully packaged, if your parcel arrives damaged or you believe an item has been damaged during transit, please contact us immediately. Where possible, include photographs of both the packaging and the item. This allows us to investigate quickly and arrange an appropriate resolution as soon as possible.

If your order hasn't arrived within the expected delivery timeframe, we recommend first checking your tracking information using the link provided in your dispatch email. If you're still unable to locate your parcel, simply contact us and we'll investigate with the courier on your behalf and keep you updated throughout the process.

We accept all major debit and credit cards, along with the secure payment methods displayed during checkout. All payments are processed through trusted payment providers using industry-standard encryption, ensuring your personal and payment information remains secure.

Yes. Protecting your information is extremely important to us. All payments are processed securely using encrypted payment systems and we never store your full payment card details. You can shop with confidence knowing your payment information is handled using secure, industry-standard technology.