Buy Natural Diamond Jewellery
Welcome to our curated collection of natural diamond jewellery, where each piece tells a story of timeless beauty, expert craftsmanship, and ethical luxury. Made with 100% solid 14K gold and GIA-certified natural diamonds, these pieces are designed to last a lifetime and beyond.
Every diamond is carefully handpicked for brilliance and responsibly sourced to reflect our commitment to sustainability. Whether you're shopping for a classic solitaire ring, a meaningful pendant, or a sparkling pair of studs, you'll find jewellery that’s elegant, durable, and shipped across the UK with free delivery. All pieces come with proper certification, gold purity stamping, and secure packaging—because trust and quality should never be compromised.
18k Gold Montana Sapphire and Natural Diamond Engagement Ring
18k Gold Montana Sapphire Pear Shaped Engagement Ring
18k Gold Montana Sapphire Three Stone Necklace
18k Gold Natural Diamond and Sapphire Engagement Ring
18k Gold Natural Diamond and Sapphire Engagement Ring | Floral Engagement Ring
18k Gold Natural Diamond Braided Chain Link Ring
18k gold braided chain link ring with 0.43 ct natural diamonds (GH color, VS-SI clarity). BIS Hallmarked & GIA certified. Available in 3 gold tones.
18k Gold Natural Diamond Chain Link Ring
18k solid gold chain link ring with 0.63 ct natural diamonds (GH color, VS-SI clarity). BIS Hallmarked & GIA certified.
18k Gold Natural Diamond Chain Link Ring
Chain link design ring in 18k gold with 198 natural diamonds (0.23 ct). GH COLOR, VS-SI Clarity. GIA Certified & BIS Hallmarked.
18k Gold Natural Diamond Chain Necklace
18k Gold Natural Diamond Charm Necklace
18k Gold Natural Diamond Crescent Moon Necklace
18k Gold Natural Diamond Cross Pendant Necklace
18k Gold Natural Diamond Disc Ray Necklace
18k Gold Natural Diamond Elephant Charm Necklace
18k Gold Natural Diamond Heart Necklace
18k Gold Natural Diamond Heart Necklace
18k Gold Natural Diamond Infinity Necklace
18k Gold Natural Diamond Initial Necklace
18k Gold Natural Diamond Initial Necklace | Letter Natural Diamond Necklace for women
18k Gold Natural Diamond Key Charm Necklace
18k Gold Natural Diamond Love Necklace
A delicate 18k gold Natural diamond love necklace, featuring 44 round diamonds (0.21 ct, G color, SI clarity) in a prong setting. Available in White, Rose, and Yellow Gold. BIS Hallmarked.
18k Gold Natural Diamond Mini Lotus Earring
18K Gold Natural Diamond Necklace
18k Gold Natural Diamond Necklace
18K Gold Natural Diamond Necklace
18k Gold Natural Diamond Ruby Pear Drop Necklace
18k Gold Natural Diamond Solitaire on a Bail
18k Gold Natural Diamond Spike Necklace
18k Gold Natural Diamond Stacking Ring
18k solid gold stacking ring with 0.18 ct natural diamonds, GH color, VS-SI clarity. Available in White, Rose, and Yellow Gold. BIS Hallmarked & GIA certified.
18k Gold Natural Diamond Star Charm Necklace
18k Gold Natural Diamond Sun Circle Necklace
18k Gold Natural Diamond Wrap Ring
18k solid gold wrap ring with 0.16 Ct GH COLOR, VS-SI Clarity natural diamonds. BIS Hallmarked & GIA certified. Available in white, rose & yellow gold.
18k Gold Natural Montana Sapphire and Diamond Floral Necklace
18k Gold Nature Inspired Engagement Ring Diamond and Sapphire
18k Gold Nature Inspired Leaf Wedding Band Diamonds and Montana Sapphire
18k Gold Nature Inspired Leaf Wedding Band Teal Montana Sapphire
18k Gold Necklace with Alternating Baguette and Round Brilliant Cut Natural Diamonds
18k Gold Oval Blue Sapphire Engagement Ring Set
18k Gold Oval Cut Natural Diamond Eternity Band
18k white gold eternity band with 1.17 ct oval-cut GH COLOR, VS-SI Clarity natural diamonds. GIA Certified, BIS Hallmarked. Elegant and symbolic.
18k Gold Pastel Blue Pear Sapphire and Natural Diamond Ring | Cluster Engagement Ring
18k Gold Pastel Blue Sapphire Leaf Engagement Ring
18k Gold Pastel Green Sapphire and Diamond Engagement Ring
A stunning 18k solid gold engagement ring featuring a 1.3-1.5 ct pear-shaped pastel green sapphire, accented by natural diamonds. Available in White, Rose, and Yellow Gold.
18k Gold Pastel Purple Sapphire and Pear Shape Natural Diamonds Engagement Ring
18k Gold Pave Diamond Graduated Necklace
18k Gold Pear Montana Sapphire Necklace
18k Gold Pink Sapphire and Natural Diamond Engagement Ring Set
18k Gold Pink Sapphire Engagement Ring with Natural Diamonds
18k Gold Prong Setting Natural Diamond Solitaire Necklace
18K gold solitaire necklace with a natural round-cut diamond in a classic prong setting. Elegant, certified, and crafted for everyday luxury.
18k Gold Purple Sapphire Engagement Ring Set Natural Diamonds
18k Gold Rainbow Sapphire Bar Necklace
18k Gold Rainbow Sapphire Tennis Necklace
18k Gold Round Blue Sapphire Natural Diamond Ring Set
18k Gold Round Brilliant Natural Diamond Triple Criss Cross Band
18k Gold Round Cut Natural Diamond Trio Necklace
18K gold necklace featuring three round-cut natural diamonds. A minimalist trio design crafted in white, rose, or yellow gold with certified stones.
18k Gold Sapphire and Natural Diamond Engagement Ring
18k Gold Sideways Natural Diamond Heart in Micro Pave Setting
18k Gold Single Natural Diamond Heart Necklace
18k Gold Single Natural Diamond Star Necklace
18k Gold Slanted Marquise and Round Natural Diamond Necklace
18k Gold Sun and Moon Necklace Natural Montana Sapphire and Diamonds
18k Gold Teal Blue Montana Sapphire Ring
18k Gold Teal Blue Montana Sapphire Ring With Natural Diamonds
18k Gold Teal Blue Montana Sapphire Solitaire Engagement Ring
18k Gold Teal Blue Montana Sapphire Solitaire Ring Set
18k Gold Teal Blue Pear Sapphire and Natural Diamond Engagement Ring Set
18k Gold Teal Blue Sapphire and Natural Diamond Cluster Engagement Ring Set
18k Gold Teal Blue Sapphire and Natural Diamond Engagement Ring
18k Gold engagement ring with a 2–2.3 ct teal sapphire and 0.18 ct natural diamonds. GIA & BIS certified. Available in three gold tones.
18k Gold Teal blue sapphire Kite Engagement Ring Set
18k Gold Teal Green Montana Sapphire Engagement Ring Marquise Natural Diamonds
18k Gold Teal Green Montana Sapphire Natural Diamond Engagement Ring
18k Gold Teal Green Sapphire and Diamond Engagement Ring Set
18k Gold Teal Green Sapphire Engagement Ring
18k Gold Teal Green Sapphire Engagement Ring Set With Natural Diamonds
18k Gold Teal Green Sapphire Ring
18k Gold Teal Mint Green Montana Sapphire Ring
18k Gold Teal Montana Sapphire and Natural Diamond Engagement Ring Set
18k Gold Teal Sapphire Engagement Ring Pear Shape
18k Gold Teal Sapphire Hidden Halo Diamond Engagement
18k Gold Teal Sapphire Hidden Halo Natural Diamond Engagement Ring
Exquisite 18k Gold Teal Sapphire Hidden Halo Natural Diamond Engagement Ring, featuring a 2-carat natural teal sapphire with hidden halo natural diamonds. Available in white, rose, and yellow gold. GIA & BIS Hallmarked for authenticity.
18k Gold Teal Sapphire Natural Diamond Engagement Ring
18k Gold Teal Sapphire Ring Set Salt and Pepper Natural Diamonds
18k Gold Tiny Ball Natural Diamond Cross Necklace
18k Gold Tiny Diamond Cross Necklace
18k Gold Tiny Natural Diamond Cross Necklace
18k Gold Tiny Natural Diamond Heart Necklace
18K gold tiny heart necklace with natural diamonds. Dainty and romantic, perfect for gifting or layering. Available in yellow, white, and rose gold.
18k Gold Triangle Cut Natural Diamond Solitaire Necklace
18k Gold Twig Leaf Engagement Ring
18k Gold Twig Leaf Engagement Ring Set With Teal Blue Montana Sapphire
18k Gold Uncut Natural Diamond Station Necklace
18k Gold Vine Eternity Ring: Nature-Inspired Dainty Stacking Band
18k Gold White Sapphire Engagement Ring Set | Cluster Sapphire Engagement Ring
A stunning 18k gold engagement ring set featuring a 1-1.1 ct natural white sapphire, accented by blue and teal sapphires. Available in White, Rose, or Yellow Gold. GIA & BIS certified.
18k Gold White Sapphire Hexagon Ring With Blue Montana Sapphires
Elegant 18k Gold White Sapphire Hexagon Ring with Blue Montana Sapphires, featuring a 1.5 - 1.8 ct hexagon white sapphire with vibrant Montana sapphire accents. Available in white, rose, and yellow gold. GIA & BIS Hallmarked for authenticity.
18k Heart Natural Diamond Necklace
18k Illusion Setting Step Cut Mosaic Natural Diamond Necklace
18k Marquise Natural Diamond Cluster Necklace
A delicate 18k gold marquise natural diamond cluster necklace, featuring three marquise-cut diamonds and one round diamond (0.16 CTW, G color, SI clarity) in a prong setting. BIS Hallmarked, available in White, Rose, and Yellow Gold.
18k Mini Natural Diamond Horseshoe Necklace
18k Natural Diamond Bar Necklace
18k Natural Diamond Bar Necklace
18k Natural Diamond Bar Pendant Necklace
18k Natural Diamond Bar Pendant Necklace
History, Types, Cultural Significance Of Natural Diamond Jewelry
Diamonds have long been considered the ultimate symbol of love, strength, and commitment. Especially in UK culture, gifting a natural diamond is about more than just luxury—it’s a meaningful gesture tied to milestones, memories, and legacy. From engagements and anniversaries to birthdays and "just because" moments, diamonds are always the right choice.
At The Karat Store, we honour that tradition with an exclusive range of certified natural diamond jewellery. Explore styles that include:
Solitaire and halo rings in various carat weights
Minimalist and statement diamond pendants
Classic tennis bracelets and bangles
Studs and hoop earrings are designed to elevate your look
Each design is handcrafted in solid 14K gold, never plated or filled, and set with natural diamonds certified by the GIA. Whether you love vintage-inspired cuts or modern minimalism, our collection includes styles to suit every taste and occasion.
In today’s fast-paced world, natural diamond jewellery remains one of the few things that hold lasting value, both emotionally and financially. And with rising interest in ethical sourcing and slow fashion, shoppers in the U.K. are increasingly turning to handcrafted fine jewellery that blends luxury with responsibility.
Quality of Material Used
Quality starts with the materials. Our jewellery is made using pure 14K solid gold—never plated, never mixed. That means your piece won’t tarnish or wear away over time.
We work with ethical suppliers to source conflict-free natural diamonds, ensuring every stone has a clear origin and exceptional brilliance. Our pieces are hypoallergenic, perfect for daily wear, and designed to retain their glow through years of use. Real gold, real diamonds, real quality—every time.
Certifications Provided
Every piece of natural diamond jewelry from The Karat Store includes GIA certification, the gold standard in diamond grading. GIA certificates provide complete transparency on a diamond’s cut, color, clarity, and carat weight.
Your jewelry will also feature a 14K gold purity stamp, a full invoice, and gemstone or diamond grading documents. Buying certified jewelry means peace of mind—you know exactly what you're getting, and its value is verified by the world’s top experts.
Craftsmanship
At The Karat Store, every item is handmade by skilled artisans who’ve spent years perfecting their craft. From carefully setting each diamond to the final polish, every detail is handled with precision and care.
Our jewellers use secure prong settings, hand polishing, and fine finishing to ensure every piece is flawless. And before shipping, we conduct a multi-point inspection process to guarantee that what you receive is nothing less than perfect. This is handcrafted fine jewellery, the way it should be—made with love, made to last.
Frequently Asked Questions
1. Is your diamond jewellery made with real 14K gold?
Yes, all our pieces are crafted in 100% solid 14K gold—no plating or fillers.
2. What kind of certification will I receive?
You’ll receive a GIA certificate for natural diamonds, along with gold purity stamps and a full invoice.
3. How long does shipping take to the UK?
Shipping takes between 12 to 22 days to your doorstep in the UK.
4. Is shipping free across the UK?
Yes! We offer free shipping on all orders, no matter where you live in the U.K.
5. Do you offer returns?
We only accept returns if you receive a damaged item or the wrong product.
6. Can I track my order?
Absolutely. You’ll receive full tracking details once your jewellery ships.
7. Is your packaging safe and secure?
Yes, we use tamper-proof, secure packaging to protect your jewellery during shipping.
8. Do you accept custom orders?
Yes, we’d love to bring your design ideas to life. Just contact us to get started.
9. Is your jewellery hypoallergenic?
Yes, our 14K solid gold and diamonds are safe for sensitive skin and everyday wear.
10. How can I get in touch with you?
You can email us anytime at contact@thekaratstore.uk for questions or support.