
A ring that celebrates your bonds.
Our 1.5 carat radiant cut diamond rings are designed for those who want maximum sparkle with a modern edge. Whether you choose a natural diamond, a lab-grown diamond, or moissanite, the radiant cut delivers brilliance with a refined, rectangular shape that flatters every hand. Paired with solid 14K or 18K gold, this ring is the perfect balance of bold and timeless.
Each piece is made using 100% real gold and certified stones, handcrafted to perfection, and shipped securely to your door in the USA within 12 to 22 days. Every order includes a gold purity stamp, gemstone certification, and tamper-proof packging.
18k Solid Gold Promise Ring with 1.5 CT radiant and round natural diamonds. GH color, VS-SI clarity. GIA & BIS certified. Thin 1.60 mm band.
With its signature trimmed corners and dazzling step-brilliant hybrid cut, the radiant cut is one of the most brilliant fancy shapes available. At 1.5 carats, it offers a bold look and strong presence without being too overpowering. Its rectangular silhouette makes it ideal for those who love clean lines and contemporary elegance.
At The Karat Store, you can choose from:
GIA-certified natural diamonds – Unique, rare, and timeless
IGI-certified lab-grown diamonds – Eco-conscious and visually identical to mined stones
GRA-certified moissanite – Brilliant, durable, and affordable
Style options: Solitaire, hidden halo, three-stone, east-west, pave band
Gold choices: 14K and 18K solid gold in yellow, white, or rose
Stone shapes: Radiant cut center with optional accents
This is the perfect engagement or statement ring for someone who appreciates modern brilliance with vintage inspiration.
We don’t compromise on materials. All rings are crafted using 100% solid 14K or 18K gold—never plated, filled, or vermeil. Each band is polished, hallmarked, and built to last.
14K gold is durable and perfect for daily wear
18K gold offers a richer tone and higher gold content
All rings are nickel-free and hypoallergenic, ideal for long-term wear and sensitive skin.
We use only ethically sourced and certified gemstones, hand-selected for cut, clarity, and light performance:
GIA for natural diamonds
IGI for lab-grown diamonds
GRA for moissanite
Each 1.5 carat radiant cut is precision-cut to maximize brilliance in every angle.
Every ring comes with:
A 14K or 18K gold purity stamp
Official certification for your chosen gemstone
A detailed invoice outlining your ring’s exact materials and specifications
We make sure your investment is protected and transparent—because forever deserves nothing less.
Each ring is handcrafted by experienced artisans, who shape the gold, set the radiant-cut stone, and polish the final piece with expert precision. The result is a ring that feels substantial, shines brilliantly, and meets the highest standards of craftsmanship.
Before shipping, each ring undergoes a multi-point quality inspection to ensure flawless presentation and secure settings.
1. How big is a 1.5 carat radiant cut diamond?
A typical 1.5 carat radiant cut measures around 7.5 x 6.0 mm, depending on proportions and depth.
2. Is the ring made with real gold?
Yes. We use only 100% solid 14K or 18K gold, never plated or gold-filled.
3. Are the diamonds and moissanite certified?
Yes:
GIA for natural diamonds
IGI for lab-grown
GRA for moissanite
4. Can I customize the setting or stone size?
Absolutely! We accept custom orders for stone shape, gold tone, band style, and setting.
5. Is the ring hypoallergenic?
Yes. Our gold is nickel-free and hypoallergenic, perfect for everyday wear.
6. What is the delivery time to the USA?
Shipping takes 12 to 22 days from dispatch. Tracking is provided with every order.
7. Do you offer free shipping?
Yes. All orders come with free, insured, and trackable shipping within the USA.
8. What’s the difference between 14K and 18K gold?
14K is more durable and scratch-resistant.
18K has higher gold purity and a deeper, richer hue.
9. Can I return the ring?
Returns are accepted for damaged or incorrect items only. Please email contact@thekaratstore.us within 7 days of receiving your item.
10. Will the ring be hallmarked?
Yes. Every ring is stamped with 14K or 18K gold purity, depending on your choice.
A ring that celebrates your bonds.