Shop Lab Grown Diamond Chain Necklaces
Sleek, versatile, and subtly luxurious—our lab-grown diamond chain necklace is designed for modern elegance that never fades. Whether you’re layering for a statement look or wearing one solo for a minimal aesthetic, these necklaces add a refined sparkle to every outfit.
Each piece is made in solid 14K & 18K gold and set with IGI-certified lab-grown diamonds, delivering the brilliance of natural diamonds with none of the ethical concerns. From dainty diamond-studded chains to bold, fashion-forward designs, this collection offers fine jewellery for every mood and moment. Enjoy free insured shipping across the UK, tamper-proof packaging, and full certification with every order.
14K Gold Lab-Created Diamond Solitaire Pendant Necklace
£1,576.00
14K Gold Bar Bezel Diamond Necklace
This 14K Gold Bar Bezel Diamond Necklace features 2.01 cts of lab-grown diamonds, each with VS1 clarity and F color. The diamonds are set in a sleek gold bar, protected by bezel settings for a smooth, refined look. With a polished finish, this modern, minimalist necklace is perfect for everyday wear or as an elegant addition to layered looks.
14K Gold Bar Snake Diamond Necklace
The 14K Gold Bar Snake Diamond Necklace features 0.41 cts of lab-grown diamonds, offering VS1 clarity and F color. The diamonds are elegantly set along a gold bar with a subtle snake-like curve, creating a modern and distinctive look. With its polished finish, this necklace combines unique design with everyday elegance, perfect for any occasion.
14K Gold Bezel Diamond Graduated Half Tennis Necklace
The 14K Gold Bezel Diamond Graduated Half Tennis Necklace features 1.15 carats of lab-grown diamonds set in a classic graduated design. Crafted from premium 14KT gold, this necklace offers a sophisticated touch with its bezel settings and polished finish. Presented in a Karat Store Jewelry box, it’s ideal for gifting or enhancing your collection with timeless elegance.
14K Gold Diamond Baguette Cut Lab Grown Necklace
14K Gold Diamond Clover Necklace
14K Gold Diamond Flower Necklace
The 14K Gold Diamond Flower Necklace showcases a delicate flower design with lab-grown diamonds, set in premium 14KT gold. The necklace features diamonds with VS1 clarity and F color, offering a subtle yet captivating sparkle. Polished to a high sheen and elegantly presented in a Karat Store Jewelry box, it's ideal for gifting or adding a touch of elegance to your collection.
14K Gold Diamond Mamas Necklace
14K Gold Diamond Marquise Clover Spaced Necklace
14K Gold Diamond Multi Trio Necklace
This 14K gold necklace showcases multiple sets of three lab-grown diamonds, each with VS1 clarity and F color. The sophisticated arrangement of diamond trios along a delicate gold chain combines timeless elegance with modern sophistication. Polished to a high shine, it’s perfect for adding a touch of luxury to any outfit.
14K Gold Diamond Ohm Necklace
14K Gold Diamond Oval Lab Grown Necklace
14K Gold Diamond Pear Lab Grown Necklace
14K Gold Diamond Prong Shaped Necklace
This 14K Gold Diamond Prong Shaped Necklace features 0.69 cts of lab-grown diamonds, with VS1 clarity and F color. The unique prong setting highlights each diamond's brilliance, creating a contemporary design that is both functional and artistic. With a polished finish, this necklace exudes versatility and elegance, perfect for both everyday wear and special occasions.
14K Gold Diamond Puff Link Necklace
The 14K Gold Diamond Puff Link Necklace features 2.03 carats of lab-grown diamonds in a chic puff link design. Crafted from premium 14KT gold, this elegant necklace combines modern sophistication with sparkling brilliance. Polished to a high shine and elegantly presented in a Karat Store Jewelry box, it's ideal for gifting or adding a touch of luxury to your collection.
14K Gold Diamond Rectangle Octagon Ball Necklace
The 14K Gold Diamond Rectangle Octagon Ball Necklace features lab-grown diamonds in a unique design combining rectangular and octagonal elements with a ball pendant. Crafted from premium 14KT gold, this necklace offers a modern and stylish look with a touch of elegance. Polished to a high shine and presented in a Karat Store Jewelry box, it’s ideal for gifting or adding to your collection.
14K Gold Diamond Trio Necklace
This 14K gold necklace features a stunning trio of lab-grown diamonds, each with VS1 clarity and F color. The elegant design highlights the diamonds’ brilliant sparkle and is perfect for any occasion, from everyday wear to special events. Crafted from premium gold, this necklace offers timeless sophistication and lasting beauty.
14K Gold Graduated Bezel Round Multi Diamond Necklace
This 14K Gold Graduated Bezel Round Multi Diamond Necklace showcases 0.30 cts of lab-grown diamonds, featuring VS1 clarity and F color. The diamonds are arranged in a graduated pattern, set in protective gold bezels. With a polished finish, this necklace exudes elegance, making it perfect for both everyday wear and special occasions.
14K Gold Heart Diamond Necklace
14K Gold Lab Grown Diamond Baguette Necklace
The 14K Gold Lab Grown Diamond Baguette Necklace features 0.54 cts of lab-grown diamonds with VS1 clarity and F color. The sleek design showcases elegant baguette-cut diamonds set in a premium gold chain, offering a refined and sophisticated look. Polished to a high shine, this necklace is ideal for adding a touch of luxury to any outfit.
14K Gold Lab Grown Diamond Heart Necklace
14K Gold Lab Grown Diamond Multi Heart and Pear Drop Necklace
14K Gold Lab Grown Diamond Multi Heart Drop Necklace
14K Gold Lab Grown Diamond Multi Marquise Drop Necklace
14K Gold Lab Grown Diamond Multi Pear Drop Necklace
The 14K Gold Multi Pear Drop Necklace features 2.33 cts of lab-grown diamonds, each with VS1 clarity and F color. The necklace showcases multiple pear-shaped diamonds elegantly suspended from a delicate gold chain, creating a captivating cascade of brilliance. Crafted from premium 14KT gold and polished to a high shine, this necklace is a stunning statement piece perfect for special occasions.
14K Gold Lab Grown Diamond Multi Shape Necklace
£1,668.00
14K Gold Lab Grown Diamond Multi Shape Necklace
14K Gold Lariat Double Marquise Diamond Necklace
The 14K Gold Lariat Double Marquise Diamond Necklace features two marquise-cut lab-grown diamonds (0.38 cts) set in a sleek lariat design. Adjustable in length, it’s polished to a high shine, enhancing the diamonds’ brilliance. Presented in a Karat Store Jewelry box, this necklace is ideal for gifting or personal wear.
14K Gold Lines Fluted Disc Diamond Necklace
The 14K Gold Lines Fluted Disc Diamond Necklace features a modern disc pendant with a fluted design and lab-grown diamonds of VS1 clarity and F color. Crafted from polished 14K gold, this necklace offers a contemporary and elegant look, ideal for enhancing both everyday outfits and special occasions. Packaged in a The Karat Store jewelry box.
14K Gold Multi Shape Drops Necklace
14K Gold Octagon Diamond Necklace
14K Gold Diamond Coin Cuban Link Necklace
The 14K Gold Diamond Coin Cuban Link Necklace features 0.38 carats of lab-grown diamonds set in a striking Cuban link design. Crafted from premium 14KT gold, this necklace combines modern style with sophisticated elegance. Polished to a high shine and elegantly presented in a Karat Store Jewelry box, it’s ideal for gifting or elevating your collection with a touch of luxury.
14K Gold Diamond Cuban Link Chain Necklace
14K Gold Diamond Mini Trio Pear Drop Ball Necklace
14K Gold Diamond Pear Ball Necklace
The 14K Gold Diamond Pear Ball Necklace features 0.95 carats of lab-grown diamonds in a stunning pear-shaped design. Crafted from premium 14KT gold, this elegant necklace combines modern sophistication with radiant sparkle. Polished to a high shine and presented in a Karat Store Jewelry box, it’s ideal for gifting or adding a touch of luxury to your collection.
18k Gold Lab-Created Diamond Solitaire Pendant Necklace
£1,872.00
18k Gold Bar Bezel Diamond Necklace
This 18k Gold Bar Bezel Diamond Necklace features 2.01 cts of lab-grown diamonds, each with VS1 clarity and F color. The diamonds are set in a sleek gold bar, protected by bezel settings for a smooth, refined look. With a polished finish, this modern, minimalist necklace is perfect for everyday wear or as an elegant addition to layered looks.
18k Gold Bar Snake Diamond Necklace
The 18k Gold Bar Snake Diamond Necklace features 0.41 cts of lab-grown diamonds, offering VS1 clarity and F color. The diamonds are elegantly set along a gold bar with a subtle snake-like curve, creating a modern and distinctive look. With its polished finish, this necklace combines unique design with everyday elegance, perfect for any occasion.
18k Gold Bezel Diamond Graduated Half Tennis Necklace
The 18k Gold Bezel Diamond Graduated Half Tennis Necklace features 1.15 carats of lab-grown diamonds set in a classic graduated design. Crafted from premium 18kT gold, this necklace offers a sophisticated touch with its bezel settings and polished finish. Presented in a Karat Store Jewelry box, it’s ideal for gifting or enhancing your collection with timeless elegance.
18k Gold Diamond Baguette Cut Lab Grown Necklace
18k Gold Diamond Clover Necklace
18k Gold Diamond Flower Necklace
The 18k Gold Diamond Flower Necklace showcases a delicate flower design with lab-grown diamonds, set in premium 18kT gold. The necklace features diamonds with VS1 clarity and F color, offering a subtle yet captivating sparkle. Polished to a high sheen and elegantly presented in a Karat Store Jewelry box, it's ideal for gifting or adding a touch of elegance to your collection.
18k Gold Diamond Mamas Necklace
18k Gold Diamond Marquise Clover Spaced Necklace
18k Gold Diamond Multi Trio Necklace
This 18k gold necklace showcases multiple sets of three lab-grown diamonds, each with VS1 clarity and F color. The sophisticated arrangement of diamond trios along a delicate gold chain combines timeless elegance with modern sophistication. Polished to a high shine, it’s perfect for adding a touch of luxury to any outfit.
18k Gold Diamond Ohm Necklace
18k Gold Diamond Oval Lab Grown Necklace
18k Gold Diamond Pear Lab Grown Necklace
18k Gold Diamond Prong Shaped Necklace
This 18k Gold Diamond Prong Shaped Necklace features 0.69 cts of lab-grown diamonds, with VS1 clarity and F color. The unique prong setting highlights each diamond's brilliance, creating a contemporary design that is both functional and artistic. With a polished finish, this necklace exudes versatility and elegance, perfect for both everyday wear and special occasions.
18k Gold Diamond Puff Link Necklace
The 18k Gold Diamond Puff Link Necklace features 2.03 carats of lab-grown diamonds in a chic puff link design. Crafted from premium 18kT gold, this elegant necklace combines modern sophistication with sparkling brilliance. Polished to a high shine and elegantly presented in a Karat Store Jewelry box, it's ideal for gifting or adding a touch of luxury to your collection.
18k Gold Diamond Rectangle Octagon Ball Necklace
The 18k Gold Diamond Rectangle Octagon Ball Necklace features lab-grown diamonds in a unique design combining rectangular and octagonal elements with a ball pendant. Crafted from premium 18kT gold, this necklace offers a modern and stylish look with a touch of elegance. Polished to a high shine and presented in a Karat Store Jewelry box, it’s ideal for gifting or adding to your collection.
18k Gold Diamond Trio Necklace
This 18k gold necklace features a stunning trio of lab-grown diamonds, each with VS1 clarity and F color. The elegant design highlights the diamonds’ brilliant sparkle and is perfect for any occasion, from everyday wear to special events. Crafted from premium gold, this necklace offers timeless sophistication and lasting beauty.
18k Gold Graduated Bezel Round Multi Diamond Necklace
This 18k Gold Graduated Bezel Round Multi Diamond Necklace showcases 0.30 cts of lab-grown diamonds, featuring VS1 clarity and F color. The diamonds are arranged in a graduated pattern, set in protective gold bezels. With a polished finish, this necklace exudes elegance, making it perfect for both everyday wear and special occasions.
18k Gold Heart Diamond Necklace
18k Gold Lab Grown Diamond Baguette Necklace
The 18k Gold Lab Grown Diamond Baguette Necklace features 0.54 cts of lab-grown diamonds with VS1 clarity and F color. The sleek design showcases elegant baguette-cut diamonds set in a premium gold chain, offering a refined and sophisticated look. Polished to a high shine, this necklace is ideal for adding a touch of luxury to any outfit.
18k Gold Lab Grown Diamond Heart Necklace
18k Gold Lab Grown Diamond Multi Heart and Pear Drop Necklace
18k Gold Lab Grown Diamond Multi Heart Drop Necklace
18k Gold Lab Grown Diamond Multi Marquise Drop Necklace
18k Gold Lab Grown Diamond Multi Pear Drop Necklace
The 18k Gold Multi Pear Drop Necklace features 2.33 cts of lab-grown diamonds, each with VS1 clarity and F color. The necklace showcases multiple pear-shaped diamonds elegantly suspended from a delicate gold chain, creating a captivating cascade of brilliance. Crafted from premium 18kT gold and polished to a high shine, this necklace is a stunning statement piece perfect for special occasions.
18k Gold Lab Grown Diamond Multi Shape Necklace
£1,964.00
18k Gold Lab Grown Diamond Multi Shape Necklace
18k Gold Lariat Double Marquise Diamond Necklace
The 18k Gold Lariat Double Marquise Diamond Necklace features two marquise-cut lab-grown diamonds (0.38 cts) set in a sleek lariat design. Adjustable in length, it’s polished to a high shine, enhancing the diamonds’ brilliance. Presented in a Karat Store Jewelry box, this necklace is ideal for gifting or personal wear.
18k Gold Lines Fluted Disc Diamond Necklace
The 18k Gold Lines Fluted Disc Diamond Necklace features a modern disc pendant with a fluted design and lab-grown diamonds of VS1 clarity and F color. Crafted from polished 18k gold, this necklace offers a contemporary and elegant look, ideal for enhancing both everyday outfits and special occasions. Packaged in a The Karat Store jewelry box.
18k Gold Multi Shape Drops Necklace
18k Gold Octagon Diamond Necklace
18k Gold Diamond Coin Cuban Link Necklace
The 18k Gold Diamond Coin Cuban Link Necklace features 0.38 carats of lab-grown diamonds set in a striking Cuban link design. Crafted from premium 18kT gold, this necklace combines modern style with sophisticated elegance. Polished to a high shine and elegantly presented in a Karat Store Jewelry box, it’s ideal for gifting or elevating your collection with a touch of luxury.
18k Gold Diamond Cuban Link Chain Necklace
18k Gold Diamond Mini Trio Pear Drop Ball Necklace
18k Gold Diamond Pear Ball Necklace
The 18k Gold Diamond Pear Ball Necklace features 0.95 carats of lab-grown diamonds in a stunning pear-shaped design. Crafted from premium 18kT gold, this elegant necklace combines modern sophistication with radiant sparkle. Polished to a high shine and presented in a Karat Store Jewelry box, it’s ideal for gifting or adding a touch of luxury to your collection.
Yard Necklace | Gold Diamond Necklace | Lab grown Diamond Necklace
£794.00
Yard Necklace | Gold Diamond Necklace | Lab grown Diamond Necklace
£1,090.00
History, Types, Cultural Significance Of Lab Grown Diamond Chain Necklaces
The diamond chain necklace has become a must-have in contemporary jewellery, offering elegance, fluidity, and everyday wearability in one. Our collection of lab-grown diamond chain necklaces elevates this timeless style with thoughtful craftsmanship and sustainable beauty.
Made using 100% solid 14K & 18K gold, these pieces are available in white, yellow, and rose gold finishes. Each chain features hand-set lab-grown diamonds, spaced beautifully to reflect light with every movement. Whether you're looking for a minimalist chain with evenly spaced stones or a full pavé-style diamond chain for added glamour, you'll find the perfect match here.
Our lab-grown diamonds are optically, physically, and chemically identical to mined diamonds, but created under ethical and eco-conscious conditions. Each one is IGI certified, ensuring you get verified brilliance and value with every piece.
These necklaces are especially popular in the UK for their versatility—you can wear them alone for an understated shine or layer them with other chains and pendants for a more stylish look. They’re ideal for both casual wear and formal occasions.
At The Karat Store, every necklace is handcrafted by experienced artisans who understand the balance of design and durability. Every piece undergoes a thorough inspection before shipping to ensure it meets our high standards of quality and craftsmanship.
When you choose a lab-grown diamond chain necklace, you’re choosing more than style—you’re choosing meaning, sustainability, and timeless beauty.
Quality of Material Used
We use only 100% solid 14K & 18K gold in all our chain necklaces—never plated, filled, or hollow. This ensures strength, longevity, and a rich, lasting shine. Available in yellow, white, and rose gold, each piece is made for durability and elegance.
Our lab-grown diamonds are hand-selected for clarity, brilliance, and uniformity. The jewellery is nickel-free and hypoallergenic, safe for sensitive skin, and crafted for long-term daily wear. This is luxury you can wear without worry.
Certifications Provided
Each lab-grown diamond chain necklace from The Karat Store includes a certificate from IGI (International Gemological Institute) verifying the cut, clarity, carat weight, and colour of the diamonds used.
The necklace is also stamped with a BIS hallmark, authenticating the 14K & 18K gold purity. A detailed invoice with your purchase ensures transparency and adds lasting value for insurance or resale. Certified jewellery means peace of mind—and with us, it’s always included.
Craftsmanship
Crafting a diamond chain requires precision and finesse. Our artisans handcraft each necklace, ensuring each diamond is spaced evenly, securely set, and perfectly aligned for symmetry and comfort.
Each piece is polished by hand and passes through a multi-step quality inspection, checking for structural strength, secure clasps, flawless finishing, and brilliance. What you receive is handcrafted fine jewellery, built to move with you and shine for years to come.
Frequently Asked Questions
1. How long does delivery take to the UK?
Shipping takes 12 to 22 days to your doorstep in the UK.
2. Is your gold authentic?
Yes, we use solid 14K & 18K gold, never plated or gold-filled.
3. Can I return a necklace if needed?
Returns are accepted only for damaged or incorrect items.
4. Do you offer free UK shipping?
Yes, we provide free insured shipping across the UK.
5. Will I receive tracking info?
Absolutely. A tracking number will be emailed once your order ships.
6. How do I contact customer support?
Reach us at contact@thekaratstore.uk with any questions or custom requests.
7. Are the diamonds certified?
Yes. All lab-grown diamonds are IGI-certified and come with documentation.
8. Can I customise my necklace?
Yes. We accept custom orders for chain length, diamond size, and spacing.
9. Is the jewelry hypoallergenic?
Yes. Our nickel-free 14K & 18K gold is safe for sensitive skin and daily wear.
10. Is the packaging secure and discreet?
Yes. We use tamper-proof, protective packaging to ensure safe delivery.