Rejoice in your bond with The Karat Stores ‘18K Solid Gold Marquise Cut 3.5 Lab Grown Diamond Engagement Ring’. This dazzling piece of jewelry is design with a remarkable 3.50 carat marquise cut diamond that is lab grown and is famous for its clarity. This diamond is VVS-VS clarity with a color of E-F guaranteeing a show piece center that is hard to miss. The mounting has a band made of 18K Solid Gold with other variations in rose gold, yellow gold and white gold. For those who would like extra indulgence, the ring can also be made in 18K Solid Gold on special request.
At 1.50 mm bandwidth and thickness this wedding band looks delicate and stylish yet quite potent and robust. It therefore meets the objectives of being comfortable and classy at the same time. The marquise cut is also a pointed ends cut historically used for making wedded bands and eyepieces because of its beauty and elegance.
The Karat Store makes it a standing rule to give superior standard jewelry and services to all clients. The lab created diamonds are also attractive since they are guilt free and easy on the environment so one does not have to feel ashamed in how beautiful they will look. This “Marquise Cut 3.5 18K Solid Gold Lab Grown Diamond Engagement Ring” fully shows our responsibility and ability to make beauty and ethics together.
Do not wait and do this order, because this engagement ring will add a touch of romance to your engagement without the guilt of wasting materials in its production.
 
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
Available centre stone carats: 3.50 ct
Certifications: IGI & BIS Hallmarked
Shipping Time: 10-12 Business Days
Customer Support: Available via live chats, and video calls.

Frequently Asked Questions
How big does a 3 carat diamond look on the hand?
A 3 carat round diamond measures roughly 9.1mm in diameter — a noticeably large, statement-making center stone. Elongated shapes like oval, pear, or marquise can appear even larger for the same carat weight.
What's the price of this Marquise lab-grown diamond ring across different gold karats?
At The Karat Store, this Marquise lab-grown diamond ring starts at $3,182.4 in 10K gold, $3,590.4 in 14K gold, and $4,080 in 18K gold — all solid gold, not plated.
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.
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 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)