Three-Stone Lab-Grown Diamond Engagement Ring in 14K White Gold (5/8 ct. tw.), Size 7

Product Overview
A 14K white gold engagement ring featuring a round lab-grown center diamond flanked by two additional stones in a three-stone setting, finished with a polished, rhodium-plated surface.
Lab-grown diamonds are created in controlled laboratory environments using processes that replicate the conditions under which natural diamonds form, resulting in stones that are chemically, physically, and optically identical to mined diamonds. This origin allows for a larger total carat presentation at a more accessible price point than an equivalent mined-diamond ring.
Key Features
- Crafted in 14K white gold with a polished finish
- Finished with rhodium plating for lasting brilliance
- Set with lab-grown diamond
- Approximate weight of 3.07 grams
Precious Metals at Sophia Jewelers
Our jewelry comes in a range of metals, from gold, platinum and sterling silver to stainless steel and titanium. Each product page lists its exact metal.
14k Gold (Most Popular)
58.3% pure gold. The ideal balance of durability and color richness. Available in yellow gold, white gold, and rose gold. The standard choice for fine jewelry and everyday wear.
18k Gold (Premium)
75% pure gold. Richer in color, slightly softer than 14k. Preferred for statement and heirloom pieces where purity matters most.
10k Gold (Everyday Value)
41.7% pure gold. The most durable gold alloy — ideal for active wearers. Stamped 417 on the piece.
Sterling Silver
92.5% pure silver, stamped 925. Cool-toned and versatile. Best for occasional wear; silver develops a natural patina over time.
Platinum
Naturally white, hypoallergenic, and the most durable precious metal. Recommended for those with nickel sensitivities.
Titanium & Stainless Steel
Lightweight, hypoallergenic, and virtually maintenance-free. Excellent for everyday jewelry and sensitive skin.
Lab-Grown Diamonds
Lab-grown diamonds are physically, chemically, and optically identical to mined diamonds. Same carbon crystal structure, same hardness (10 on the Mohs scale), same brilliance. The difference is origin and price: created in a controlled environment, lab-grown diamonds are typically 50-70% less expensive than comparable mined stones, meaning you get a larger, higher-quality diamond for your budget.
Lab-grown diamonds are conflict-free by origin and graded on the same 4Cs as mined diamonds: cut, color, clarity and carat weight. Grading reports are included only when the individual product details specify one.
How to Care for Your Jewelry
Fine jewelry deserves thoughtful care. These guidelines will keep your pieces looking luminous for years.
Daily Wear
- Remove jewelry before swimming, showering, or using cleaning products
- Apply lotion, perfume, and hairspray before putting on your jewelry — chemicals can dull metal and damage stones
- Avoid wearing jewelry during gym workouts or high-contact activities
- Put jewelry on last when getting dressed — last on, first off
Cleaning at Home
Mix a few drops of mild dish soap with warm water. Soak for 15-20 minutes, then gently scrub with a soft toothbrush. Rinse thoroughly and dry with a lint-free cloth. This method is safe for gold, platinum, and most gemstones. Avoid ultrasonic cleaners for pearls, opals, and emeralds.
Storage
Store each piece separately in a soft pouch or compartmentalized jewelry box to prevent scratching. Keep chains flat or hung to avoid tangling. Store silver in anti-tarnish pouches to slow oxidation.
Professional Care
Have precious stone jewelry professionally cleaned and inspected once a year to check prong integrity, stone security, and clasp function. Most jewelers offer this service free of charge.
Shipping
Standard shipping is free on US orders of $99 or more. Orders ship within 2–3 business days in insured packaging.
- Standard: free on US orders of $99 or more; under $99, the USPS rate is shown at checkout
- Faster delivery: USPS Priority Mail, UPS 2nd Day Air and UPS Next Day Air, priced at checkout
- International: Canada, the UK, Germany, Australia and Japan, priced at checkout
A tracking number is emailed as soon as your order ships.
Returns and Exchanges
Return or exchange unworn items within 30 days of delivery, with their original tags and packaging. Request a return authorization (RMA) first; refunds carry a 10% restocking fee, waived for store credit. Engraved and personalized pieces can't be returned.
To start a return or exchange, email info@sophiajewelers.com with your order number, or see how returns work.
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Engagement Rings, answered
Straight answers about engagement rings. See all Engagement Rings
- Free Shipping
- US Orders $99+
- Exchanges
- 30 Days, Including Ring Size
How do I choose between solitaire, halo, and three-stone rings?
Choose by how much sparkle and presence you want. A solitaire keeps the focus on one center diamond. A halo surrounds it with smaller stones so it looks larger. A three-stone ring adds side stones for width and balance. Browse solitaire rings for the simplest look.
Should I pick white gold, yellow gold, or two-tone for a ring?
Pick the color that matches the jewelry they already wear. White gold gives a bright, cool look that suits diamonds. Yellow gold feels warmer and more classic. Two-tone combines both. Most rings here are 14K gold, which is a practical choice for daily wear.
What does lab-grown diamond mean in these engagement rings?
It means the diamond was grown in a lab, not mined. Lab-grown diamonds have the same chemical makeup and hardness as mined diamonds. Many listings on this page are lab-grown, and the product title states it clearly, so you can compare each ring easily.
What does ct. tw. mean in a ring title?
Ct. tw. is the total carat weight of all diamonds. In a three-stone or halo ring, it adds the center stone and the side or halo stones together. A solitaire title shows a single ct. figure because it has one stone. Compare the cut shapes too, since they affect how large a ring looks.
What affects the price of engagement rings?
Stone size, stone type, and metal drive the price. Total carat weight, whether the diamond is lab-grown or natural, the setting style, and the gold color and karat all play a part. Extra side stones add to it as well. Use the Price filter on this page to set a budget.
Which engagement ring styles are most popular?
Three-stone rings and halo rings lead the list. Round and oval lab-grown diamond solitaires follow closely. Half moon side stones, in cushion, emerald, and princess shapes, also appear often, mostly in 14K white gold, with some in yellow gold. See halo rings for more of that style.