Experience the perfect blend of timeless elegance and modern sustainability with 18K Solid Gold 4 Prong Cushion Cut 4ct Lab Grown Diamond Engagement Ring. This exquisite ring showcases a stunning 4.00 ct lab-grown diamond, precisely cut into a cushion shape and securely set with four prongs. Available in 18K Solid Gold, with an option for 18K upon request, you can choose from three beautiful gold colours: rose gold, yellow gold, and white gold to suit your personal style.
The band, designed with a sleek width and thickness of 1.50 mm, complements the sparkling centre stone while providing a comfortable fit. Our lab-grown diamonds boast VVS-VS clarity and E-F colour, ensuring exceptional brilliance and quality that rivals natural diamonds. The cushion cut, renowned for its soft, rounded edges and brilliant facets, adds a touch of classic sophistication to this modern piece.
Opting for a lab-grown diamond is not only an ethical choice but also an environmentally friendly one. These diamonds are created with advanced technology, ensuring they are free from the conflicts associated with mined diamonds. The Karat Store is committed to offering high-quality, sustainable luxury, providing you with jewellery that aligns with your values.
Celebrate your love with a ring that symbolizes both beauty and responsibility. The 4 Prong Cushion Cut 4ct Lab Grown Diamond Engagement Ring from The Karat Store is the ideal choice for those who value elegance, quality, and sustainability. Make a statement of timeless beauty with a ring that truly reflects your commitment.
 
Product Details:-
 
Metal: 18K Solid Gold (Available in White ,Rose Gold and Yellow Gold)
Width of Band: 1.50 mm
Thickness of Band: 1.50 mm
Colour & Clarity: Lab Grown Diamond VVS-VS , E-F Color
centre stone carats: 4.00 ct
Certifications:BIS Hallmarked & IGI
Shipping Time: 10-12 Business Days
Customer Support: Available via live chats, and video calls.

Frequently Asked Questions
Is diamond durable enough for everyday wear?
Yes. Diamond rates 10 on the Mohs hardness scale, making this piece durable enough for daily wear.
How much does this diamond ring cost in solid gold?
At The Karat Store, this diamond ring starts at $4,243.2 in 10K gold, $4,787.2 in 14K gold, and $5,440 in 18K gold — all solid gold, not plated.
Should I choose 10K, 14K, or 18K gold for this piece?
18K gold (75% pure) has the richest color and softest feel. 14K gold (58.3% pure) is the most popular balance of durability and value. 10K gold (41.7% pure) is the most affordable and most scratch-resistant.
Is this solid gold all the way through, or just gold-plated?
This piece is solid gold throughout, not gold-plated — the karat purity runs all the way through the metal. Unlike plated jewelry, it won't flake, discolor, or expose base metal over time, and it carries a karat hallmark stamp as proof of authenticity.
Can this ring be resized?
Yes. Select your ring size from the dropdown before checkout. If you're unsure of your size, we recommend visiting a local jeweler for an accurate measurement.
How do I clean and care for this piece at home?
Clean gently with warm water, a mild soap, and a soft brush, then dry thoroughly. Avoid chlorine, harsh chemicals, and ultrasonic cleaners, and store it separately from other jewelry to prevent scratching.
Ring Silhouette: Engagement ring
Available Metal Colours: Yellow Gold, White Gold, Rose Gold
Available Ring Sizes: US 2 to US 13 in quarter-size increments (45 sizes)