The 18K Solid Gold Marquise Cut Diamond Engagement Ring is a timeless and elegant solitaire ring that showcases the beauty of a single marquise-cut diamond.
 
The elongated shape of the marquise diamond, combined with its brilliant facets, creates an eye-catching sparkle, making it a perfect choice for a classic and sophisticated engagement ring.
 
This simple yet striking design is crafted from 18K Solid Gold and is available in white, rose, or yellow gold, allowing you to personalize the ring to your preference or match it with other pieces in your collection.
 
With a band width and thickness of 1.50 mm, this ring offers a delicate and comfortable fit, ideal for everyday wear.
 
The marquise diamond is of VS-SI clarity and IJ color, ensuring a beautiful sparkle, while the DEF color grading provides an exceptional level of brilliance.
 
This solitaire design emphasizes the elegance of the diamond, making it the focal point of the ring.
 
Product Details :
 
Metal: 18K Solid Gold (Available in White, Rose, and Yellow Gold)
Band Width: 1.50 mm
Band Thickness: 1.50 mm
Diamond Quality: VS-SI Clarity, IJ Color
Diamond Color: DEF Color
Stone Shape: Marquise
Certifications: GIA & BIS Hallmarked
Shipping Time: 10-12 Business Days
Customer Support: Available via live chats, and video calls.

Frequently Asked Questions
What makes this design different from a plain ring?
The detailed setting gives this piece a distinct look compared to a simple band, while still being practical enough for everyday wear.
What's the price range for this diamond ring across different gold karats?
At The Karat Store, this diamond ring starts at $1,583.4 in 10K gold, $1,786.4 in 14K gold, and $2,030 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.
How can I tell this is real solid gold and not gold-plated?
This ring is solid gold throughout, not gold-plated — the karat purity runs all the way through the metal, not just a surface layer. 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, 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)