Showcase your style with this round diamond letter signet ring—customizable, elegant, and perfect for adding a personal touch to your jewelry collection.
Buy Moissanite Round Brilliant Ring
Timeless, radiant, and full of fire—our Moissanite round brilliant rings are crafted in 100% solid 14K & 18k gold and feature GRA-certified Moissanite stones. Known for their unmatched sparkle, round brilliant cuts are the most iconic and desired stone shape for both engagement and everyday rings.
Each piece is hypoallergenic, ethically crafted, and shipped securely across the UKÂ with full certification and tamper-proof packaging. If you're looking for a classic with modern brilliance, this collection is made for you.
14K Solid Gold Baguette and Round Diamond Full Eternity Ring
"Elegant 14K Solid Gold Baguette and Round Diamond Full Eternity Ring – a beautiful design with diamonds set all around the band, perfect for a sophisticated, radiant touch."
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This product has multiple variants. The options may be chosen on the product page
14K Solid Gold Mini Round Ring with Moissanite Diamonds Ring
Minimalist 14K solid gold ring with brilliant round-cut Moissanite diamonds (D color, VVS1 clarity). Ideal for stacking or wearing solo. BIS & GRA certified.
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This product has multiple variants. The options may be chosen on the product page
14k Solid Gold Moissanite Diamond Round Brilliant Ring
Exquisite 14K Gold Round Brilliant Moissanite Diamond Ring with unmatched sparkle. Available in White, Rose & Yellow Gold, BIS & GRA certified.
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This product has multiple variants. The options may be chosen on the product page
14k Solid Gold Moissanite Diamond Round Brilliant Ring
Crafted in 14K solid gold, this ring features a round brilliant moissanite diamond—offering dazzling clarity and classic charm for lasting sophistication.
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This product has multiple variants. The options may be chosen on the product page
14k Solid Gold Moissanite Diamond Round Brilliant Ring
Elegant 14K Gold Round Brilliant Moissanite Diamond Ring with timeless sparkle. Available in White, Rose & Yellow Gold, certified by BIS & GRA.
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This product has multiple variants. The options may be chosen on the product page
14k Solid Gold Round Brilliant Cut Moissanite Diamond Ring
This 14K solid gold ring showcases a dazzling round brilliant cut moissanite diamond—offering classic beauty and lasting brilliance for a refined look.
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14K Solid Gold Round Cut Moissanite Diamond Ring 1.00 ct Promise Ring
The 14K Solid Gold Round Cut Moissanite Diamond 1.00 ct Promise Ring features a VVS1 clarity, D color stone in rose, yellow, or white gold, perfect for lasting promises.
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This product has multiple variants. The options may be chosen on the product page
18K Solid Gold Baguette and Round Diamond Full Eternity Ring
"Elegant 18k Solid Gold Baguette and Round Diamond Full Eternity Ring – a beautiful design with diamonds set all around the band, perfect for a sophisticated, radiant touch."
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This product has multiple variants. The options may be chosen on the product page
18K Solid Gold Mini Round Ring with Moissanite Diamonds Ring
Minimalist 18k solid gold ring with brilliant round-cut Moissanite diamonds (D color, VVS1 clarity). Ideal for stacking or wearing solo. BIS & GRA certified.
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This product has multiple variants. The options may be chosen on the product page
18K Solid Gold Moissanite Diamond Round Brilliant Ring
Exquisite 18k Gold Round Brilliant Moissanite Diamond Ring with unmatched sparkle. Available in White, Rose & Yellow Gold, BIS & GRA certified.
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This product has multiple variants. The options may be chosen on the product page
18K Solid Gold Moissanite Diamond Round Brilliant Ring
Get this Product in 14K Gold
Crafted in 18k solid gold, this ring features a round brilliant moissanite diamond—offering dazzling clarity and classic charm for lasting sophistication.
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This product has multiple variants. The options may be chosen on the product page
18K Solid Gold Moissanite Diamond Round Brilliant Ring
Elegant 18k Gold Round Brilliant Moissanite Diamond Ring with timeless sparkle. Available in White, Rose & Yellow Gold, certified by BIS & GRA.
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This product has multiple variants. The options may be chosen on the product page
18K Solid Gold Round Brilliant Cut Moissanite Diamond Ring
Get this Product in 14K Gold
This 18k solid gold ring showcases a dazzling round brilliant cut moissanite diamond—offering classic beauty and lasting brilliance for a refined look.
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This product has multiple variants. The options may be chosen on the product page
18K Solid Gold Round Cut Moissanite Diamond Ring 1.00 ct Promise Ring
The 18k Solid Gold Round Cut Moissanite Diamond 1.00 ct Promise Ring features a VVS1 clarity, D color stone in rose, yellow, or white gold, perfect for lasting promises.
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This product has multiple variants. The options may be chosen on the product page
Round Diamond Letter Signet Ring
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This product has multiple variants. The options may be chosen on the product page
Round Diamond Letter Signet Ring
Showcase your style with this round diamond letter signet ring—customizable, elegant, and perfect for adding a personal touch to your jewelry collection.
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This product has multiple variants. The options may be chosen on the product page
History, Types, Cultural Significance Of Moissanite Round Brilliant Ring
The round brilliant cut is beloved for its 58 expertly angled facets, designed to reflect the most light possible. It’s the most popular choice in the U.K. for engagement rings and fine jewellery—thanks to its versatility, brilliance, and enduring style.
Our Moissanite round brilliant ring collection includes:
Solitaire round brilliant rings in prong, bezel, or cathedral settings
Halo designs that enhance size and sparkle
Three-stone styles symbolising past, present, and future
Stackable round brilliant bands for minimalist or layered looks
Customizable options in stone size, setting style, and gold tone
Each ring is made in solid 14K & 18k gold—choose from yellow, white, or rose—and features ethically lab-grown, GRA-certified Moissanite for brilliant fire and clarity.
Quality of Material Used
We only use 100% solid 14K & 18k gold—not plated or filled—ensuring your ring holds its shine and value for a lifetime.
Our GRA-certified Moissanite is lab-created for exceptional sparkle and sustainability. It’s durable, dazzling, and a responsible alternative to mined stones. All our rings are nickel-free and hypoallergenic, safe for sensitive skin and long-term wear.
Certifications Provided
Each Moissanite round brilliant ring from The Karat Store includes:
GRA certification verifying Moissanite authenticity
A 14K & 18k gold purity stamp
A complete invoice and official documentation
We provide fine jewellery you can trust, backed by transparency and true craftsmanship.
Craftsmanship
Each Moissanite round brilliant ring from The Karat Store includes:
GRA certification verifying Moissanite authenticity
A 14K & 18k gold purity stamp
A complete invoice and official documentation
We provide fine jewellery you can trust, backed by transparency and true craftsmanship.
Frequently Asked Questions
1. Are these rings made with real gold and Moissanite?
Yes. All rings are made with solid 14K & 18k gold and set with GRA-certified Moissanite stones.
2. Why choose a round brilliant cut?
The round brilliant cut is designed for maximum sparkle and is the most popular stone shape for its classic appeal and light performance.
3. Can I wear a round brilliant ring every day?
Absolutely. Moissanite is highly durable, and our rings are built for daily wear.
4. How long does shipping take to the U.K. address?
Shipping takes 12 to 22 business days to your U.K. address.
5. Do you offer free shipping across the United Kingdom?
Yes! We provide free, secure shipping nationwide.
6. Will I receive certification with my ring?
Yes. Every ring includes a GRA certification, a 14K & 18k K gold purity stamp, and a full invoice.
7. Are your rings hypoallergenic?
Yes. Our jewellery is nickel-free and hypoallergenic, safe for sensitive skin.
8. Can I customise my round brilliant ring?
Yes! We accept custom orders—from stone size and gold colour to engraving and setting style.
9. Do you offer round brilliant engagement rings?
Yes! Our round brilliant rings are perfect for engagements, with timeless design and dazzling brilliance.
10. How can I contact support?
You can email us at contact@thekaratstore.uk—we’re always here to help.