Lab-grown diamonds and distinctive gold jewellery

Gold and Diamond Jewellery at Karat Goldsmiths

Discover lab-grown diamond and gold jewellery online or visit our Birmingham boutique. Our collection brings together diamond engagement rings, wedding and eternity rings, gold earrings and bespoke jewellery, with a focus on distinctive 18k and 24k gold combinations.

You can compare designs online, then speak with us about diamond choice, gold purity, sizing or custom details. Visit us at 581 Stratford Road, Birmingham B11 4LS, or call +44 121 773 4222.

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Woman in ornate blue and gold traditional dress wearing jewelry, hands near her necklace

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Rings, earrings and personal commissions

Shop Gold and Diamond Jewellery

Diamond Engagement Rings

Choose an engagement ring that suits your partner’s style and the way they plan to wear it. Our lab-grown diamond designs include classic and contemporary shapes set in solid gold.

Compare

Round, oval, pear and marquise-cut diamonds
Solitaire, shoulder-set and bypass designs
Diamond size and proportions
Gold purity and colour
Setting profile and band width
Ring size and adjustment requirements

Our oval lab-grown diamond ring pairs an oval centre stone with marquise-cut shoulders and a hidden halo for added detail around the setting.

View the oval lab-grown diamond ring with marquise shoulders

Wedding and Eternity Rings

Mark your wedding, anniversary or milestone with a diamond band designed to sit alone or beside another ring. Consider the shape of your engagement-ring setting before choosing a straight, curved or contoured band.

Diamond coverage also affects comfort and appearance. A full diamond band places stones around the finger, while a part-set design leaves a plain section that may help with future size adjustments. Our team can help you compare the options and check how two rings sit together.

View a brilliant round diamond wedding band

Gold and Diamond Earrings

Gold earrings work for everyday wear, celebrations and milestone gifts. Diamond details add light without requiring a large design.

Choose earrings by considering

Stud, drop or statement styling
Gold purity and colour
Diamond shape and carat weight
Fastening type
Size, weight and wear frequency

If you are buying a gift, bring a photograph of jewellery the recipient wears. Gold colour, earring scale and design details can help us identify a suitable direction.

Bespoke Gold Jewellery

A bespoke commission gives you control over the metal, diamond, setting and proportions. We can discuss engagement rings, wedding jewellery and personal pieces built around your ideas.

Bring sketches, reference images, an existing piece or a description of the person who will wear the jewellery. We will use those details to shape the design brief.

Discuss a bespoke design

Gold purity and everyday wear

Choose Between 18k and 24k Gold

Gold purity affects colour, hardness, weight and suitability for regular wear. UK jewellers also use the term “carat” for gold purity, so you may see 18k written as 18ct.

18k Gold

18k gold contains 75% pure gold. Other metals form the remaining 25% and give the alloy more strength than high-purity gold.

Many customers choose 18k gold for

Engagement and wedding rings
Diamond settings
Earrings worn on a regular basis
Jewellery that needs a balance of rich colour and strength

The alloy composition influences the finished colour. Yellow gold keeps a warm gold tone, while white and rose gold use different alloy mixtures. Ask us about the gold colours available for the design you have chosen.

24k Gold

24k gold represents gold at close to full purity. It has a rich yellow colour and a softer structure than 18k gold.

Its softness requires careful design choices, above all in rings or settings that hold diamonds. Frequent knocks and pressure can mark or distort high-purity gold. Earrings, pendants, decorative details and special pieces may suit 24k gold better than an exposed everyday ring.

We work with 18k and 24k gold combinations to create jewellery that balances colour, structure and design. Our team can explain where each purity sits within a chosen piece.

18k or 24k for Everyday Wear?

Choose 18k gold for an engagement ring, wedding band or other piece that will face regular contact. Its alloy gives the piece greater resistance to dents and changes in shape.

Choose 24k gold when you value its strong yellow colour and high gold content and can give the piece suitable care. The design and intended wear matter as much as the purity number.

Read more about gold types and characteristics in our precious-metals guide.

Read our guide to precious metals

Understanding your jewellery

Check the Gold Hallmark

A UK hallmark helps you verify the precious-metal content of eligible jewellery. Check the piece for a fineness mark and assay-office mark. An 18ct gold item carries a 750 fineness mark because it contains 750 parts of pure gold per thousand.

Hallmark requirements depend on the metal and item weight. Ask us to show you the marks on your chosen piece and explain what each symbol means.

Gold hoop earrings with small diamond accents on a white background

Understand origin and specification

Lab-Grown and Natural Diamonds

Specialist laboratories create lab-grown diamonds through processes that reproduce the conditions under which diamonds form. Lab-grown and natural diamonds share the same crystal structure and chemical composition. Both can display differences in cut, colour, clarity and carat weight.

A trained gemmologist or specialist equipment can identify the origin. Your eye cannot provide a dependable distinction from appearance alone.

We specialise in lab-grown diamond and gold jewellery. Lab-grown stones give you a broad choice of shapes and specifications, so you can compare the qualities that affect appearance and price.

If you want to discuss a natural diamond, contact us with your preferred shape, size and budget. We can explain the available route without presenting one origin as the right choice for every buyer.

Compare Diamonds Through the 4Cs

Cut

Cut describes the quality of a diamond’s proportions, symmetry and finish. It affects the way light travels through the stone and has a strong influence on brightness.

Cut grade applies in different ways across diamond shapes. Compare stones rather than relying on a headline grade alone.

Colour

Diamond colour grades assess the amount of body colour within a stone. Diamonds near the colourless end of the scale often command higher prices, although gold colour and setting style affect how you perceive the stone.

Yellow or rose gold may reduce the need for a top colour grade in some designs. White metal around the diamond may make colour differences easier to notice.

Clarity

Clarity measures internal features and surface marks. Many inclusions require magnification to see. Concentrate on whether you can see an inclusion without magnification and whether its position affects the stone’s appearance.

Carat

Carat measures diamond weight rather than visible diameter. Two diamonds with the same carat weight can look different in size because shape, proportions and setting influence their face-up appearance.

Compare millimetre dimensions alongside carat weight. This gives you a clearer sense of how the stone will look on the hand or ear.

Diamond Grading Documents

Ask us which grading report or product documentation accompanies the diamond you are considering. Check that the report details match the stone and record the laboratory, measurements, carat weight, colour and clarity.

We can review these details with you during a consultation.

Pieces for meaningful moments

Jewellery for Engagements, Weddings and Gifts

Engagement and Proposals

Start with the wearer’s preferred gold colour and diamond shape. Next, consider daily routine, ring profile and setting security. A lower setting may suit someone who works with their hands, while a raised design can create space for a straight wedding band.

If the proposal will come as a surprise, bring an existing ring worn on the correct finger or ask us about size selection.

Weddings and Anniversaries

Wedding bands need to suit the engagement ring and feel comfortable through daily wear. Try the rings together in our Birmingham boutique where possible.

Eternity rings suit anniversaries, family milestones and personal celebrations. Choose diamond coverage, setting style and band width with future sizing in mind.

Birthday and Milestone Gifts

Gold earrings offer a flexible gift choice because they do not require ring sizing. A bespoke piece can incorporate a preferred diamond shape, meaningful detail or specific gold combination.

Consider the recipient’s

Usual gold colour
Preferred jewellery scale
Work and daily routine
Existing jewellery
Piercing type or ring size

A piece shaped around your ideas

Bespoke Gold and Diamond Jewellery in Birmingham

Our bespoke service lets you create a piece around a personal idea, a particular diamond or an 18k and 24k gold combination.

You can customise elements such as

Gold purity and colour
Lab-grown diamond shape and specification
Ring size and band proportions
Setting style and height
Diamond arrangement
Engraving or personal details

Gold rings displayed on hexagonal black stands in a jewelry store

Your Bespoke Consultation

Contact us to arrange a discussion at our Stratford Road boutique. Bring any reference images, sketches or jewellery that captures the style you want. A target budget and required date will help us define the brief.

We will discuss the design, materials and practical requirements. You can review the proposed details before production begins. We will also confirm costs, timescales and collection arrangements for your commission before you proceed.

For remodels or designs involving an existing item, bring the jewellery to the boutique so we can inspect it and explain the available options.

Call +44 121 773 4222 to discuss a bespoke appointment.

Discuss a bespoke design

Review the details before you choose

A Checklist for Comparing Jewellery

Review the full specification before buying a gold and diamond piece.

Gold

Purity, such as 18ct or 24ct
Yellow, white or rose colour
Hallmark details
Item weight and dimensions
Suitability for the intended wear

Diamond

Lab-grown or natural origin
Shape and cutting style
Cut quality
Colour and clarity grades
Carat weight and millimetre dimensions
Grading report or product documentation

Construction

Setting type and stone security
Band width and depth
Earring fastening
Surface finish
Comfort during regular wear

Service

Correct ring size
Scope for future adjustment
Care instructions
Repair and cleaning options
Current delivery, collection and returns terms

Ask us to confirm the terms that apply to your chosen product or bespoke order before purchase.

Protecting your jewellery

Caring for Gold and Diamond Jewellery

Remove rings before heavy lifting, gym work or contact with harsh cleaning products. Store each piece apart to reduce scratches and tangled chains.

Clean many gold and diamond pieces with warm water, mild washing-up liquid and a soft brush. Delicate settings, treated stones or mixed-material designs may require a different method, so ask us before cleaning an unfamiliar piece.

Check claws and settings if the jewellery catches on clothing or the stone starts to move. Stop wearing the piece and bring it to us for inspection.

See the collection in person

Visit Our Birmingham Jewellery Boutique

Visit us to view gold and diamond jewellery, compare lab-grown diamonds and discuss a bespoke design.

Karat Goldsmiths

581 Stratford Road

Birmingham

B11 4LS

United Kingdom

Phone: +44 121 773 4222

Call before travelling if you want to view a particular piece or discuss a detailed commission. We can confirm product-viewing arrangements and arrange time to talk through sizing, gold purity or diamond specifications.

Book a Birmingham consultation

Helpful answers before you choose

Frequently Asked Questions

Rows of ornate gold rings displayed on stands.

Is 18k or 24k gold better for everyday jewellery?

18k gold suits many pieces worn each day because its alloy gives it more strength than 24k gold. It works well for engagement rings, wedding bands and diamond settings.

24k gold offers higher purity and a deeper yellow colour, but its softer structure needs more care. The jewellery type and construction should guide your choice.

Are lab-grown diamonds real diamonds?

Yes. Lab-grown diamonds have the same chemical composition and crystal structure as natural diamonds. Their origin differs. Laboratories create lab-grown stones, while natural diamonds form within the earth.

Both types vary in cut, colour, clarity and carat weight.

Do you sell lab-grown diamond engagement rings?

Yes. We specialise in lab-grown diamond and gold jewellery, including engagement rings in a range of diamond shapes and setting styles. Browse online or visit our Birmingham boutique to compare designs.

Can I order bespoke gold and diamond jewellery?

Yes. Speak with us about the metal, diamond, setting, size and design details you want. We can also discuss 18k and 24k gold combinations where the proposed construction supports them.

Can I view jewellery in your Birmingham store?

Yes. Visit our boutique at 581 Stratford Road, Birmingham B11 4LS. Call +44 121 773 4222 before travelling if you want to view a particular design or arrange a consultation.

Can you resize a diamond ring?

Resizing depends on the ring’s construction, metal, setting and diamond coverage. Full eternity bands and intricate designs can limit the available adjustment. Bring the ring to our boutique so we can inspect it and explain the options.

How do I choose a diamond for an engagement ring?

Set a budget, then compare cut, shape and visible size. Review colour and clarity in relation to the gold colour and setting. Consider the wearer’s routine as well, since setting height and stone shape affect comfort.

Our team can help you compare stones and explain the accompanying grading information.

Does gold jewellery carry a hallmark?

UK hallmarking rules depend on the metal and item weight. Ask us to identify the hallmark on your chosen piece and explain its fineness and assay-office marks.

Can I buy online?

Yes. You can browse selected gold and diamond jewellery online. Contact us if you need help with sizing, specifications or collection arrangements before placing your order.

Online, in our boutique or made for you

Find Your Gold and Diamond Jewellery

Browse our lab-grown diamond and gold jewellery online, visit our Birmingham boutique or speak with us about a bespoke commission. We will help you compare gold purity, diamond specifications and design details before you choose.

Shop the collection Discuss a bespoke design

Call +44 121 773 4222