Experience classic beauty through18K Solid Gold Round Cut 3 ct Lab Grown Diamond Prong Setting Engagement Ring. It carries a brilliant 3.00 ct round-cut lab-grown diamond set in an eternally beautiful prong setting. This ring is available in 18K Solid Gold. However, for an additional fee, it can be made in 18K Solid Gold . You may also choose between rose gold, yellow gold, and white gold upon your personal preference for the ring.
The band has a dainty 1.50 mm width and depth, setting a subtle yet beautiful landscape for the sparkling center stone to feel proud of. Our cultured diamonds have VVS to VS clarity, E-F color, with superior brightness and quality as earth-mined diamonds. Perhaps one of the most recognized cuts, the round brilliant offers the quintessence of timelessness and maximum sparkle, perfect for those who prefer classic beauty combined with a modern touch.
A selection of lab-grown diamond represents a commitment to sustainability and source ethics. Lab-grown diamonds are made through advanced technology, so they are socially and environmentally responsible as there is no attachment of the environmental and social impacts that are usually accompanying in the extraction process of natural diamonds. Jewelry at The Karat Store is an apt example of dedicatedly sustainable luxury as it sells jewelry with ethic sources and exquisite craftsmanship.
Celebrate your love with a ring that symbolizes commitment to both each other and to a better world. The Round Cut 3 ct Lab Grown Diamond Prong Setting Engagement Ring from the Karat Store stands in idealism, such as elegance, quality, and sustainability.
 
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
Color & Clarity: Lab Grown Diamond VVS-VS , E-F Color
center stone carats: 3.00 ct
Certifications: IGI & BIS Hallmarked
Shipping Time: 10-12 Business Days
Customer Support: Available via live chats, and video calls.

Frequently Asked Questions
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 much does this 3 carat lab-grown diamond ring cost in solid gold?
Pricing on this Round lab-grown diamond ring runs from $2,839.2 (10K) to $3,203.2 (14K) to $3,640 (18K) at The Karat Store.
Should I choose 10K, 14K, or 18K gold for this ring?
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 — a practical choice to pair with a 3 carat center stone.
Is this ring solid gold all the way through, or just gold-plated?
This ring 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.
Is a lab-grown diamond as good as a natural diamond?
Yes — lab-grown diamonds are chemically, physically, and optically identical to natural diamonds, both rating 10 on the Mohs hardness scale. The difference is origin, not quality: lab-grown diamonds are created in a controlled environment rather than mined, which is why a 3 carat lab-grown stone costs significantly less than a natural one of the same size and quality.
How do I clean and care for this ring so it lasts?
Clean every few weeks with warm water, a mild soap, and a soft brush, then dry thoroughly. Avoid chlorine, harsh chemicals, and ultrasonic cleaners for the gold setting, and store the ring separately 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)