Round Lab-Grown Diamond Solitaire Necklace in 14K White Gold (1 ct. tw.), 18 Inch

Product Overview
A bright round lab-grown diamond glints at the center of this solitaire necklace, set in white gold with a polished rhodium finish. The gold is finished in rhodium, which gives it a crisp, silver-tone shine that lets the white stone stand out. The pendant slides onto a fine cable chain, so the diamond rests neatly and moves with you, and a lobster clasp closes the chain securely. Wear it with a crisp white shirt or a soft knit sweater for an easy, polished look. A thoughtful gift for anyone who loves April's birthstone. Understated sparkle.
Key Features
- Crafted in 14K white gold with a polished finish
- Finished with rhodium plating for lasting brilliance
- Set with white lab-grown diamond
- Cable necklace design
- Measures 8 mm wide and 18 inches long
- Secured by a lobster clasp
- Approximate weight of 1.28 grams
Why You’ll Love It
- A single stone keeps the look clean and focused.
- Bright rhodium shine pairs easily with silver-tone pieces.
- Easy to wear alone or layered with longer chains.
- Understated sparkle that suits workdays and evenings alike.
Perfect For
Ideal for birthdays, anniversaries, graduations and April birthdays, or as a gift for a wife, daughter, mother or friend. It also suits anyone who wants a polished everyday necklace.
Precious Metals at Sophia Jewelers
Every piece is crafted from certified precious metals selected for lasting brilliance and skin-safe wear.
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.
All Sophia Jewelers lab-grown diamonds are conflict-free by definition and independently graded by IGI or GIA using the same 4C criteria applied to mined diamonds: cut, color, clarity, and carat weight.
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
Free standard shipping on all orders over $99. Orders ship within 2–3 business days in insured packaging.
- Standard Shipping: Free on orders over $99 (5-7 business days)
- Expedited Shipping: 2-3 business days (additional fee at checkout)
- Overnight Shipping: Next business day (available for select items)
A tracking number is emailed as soon as your order ships.
Returns and Exchanges
We offer a 30-day return policy on all unworn, unaltered items in original condition with original packaging. Custom-engraved and custom-sized items are not eligible for return.
To begin a return or exchange, email info@sophiajewelers.com with your order number. Our team responds within one business day.
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Solitaire Necklaces, answered
Straight answers about solitaire necklaces. See all Solitaire Necklaces
- Free Shipping
- Orders Over $99
- Exchanges
- 30 Days
How do I choose between yellow and white gold solitaire necklaces?
Choose by the tone you want beside the stone. Yellow gold gives a warm glow, while white gold looks cooler and brighter against the diamond or cubic zirconia. Both are 14K here, so the choice is about your style and the other jewelry the wearer already owns.
What is the difference between lab-grown diamond and cubic zirconia solitaires?
They are different stones with different makeup. Lab-grown diamond is real diamond created in a lab, while cubic zirconia is a separate man-made stone. Both appear on this page, so check the product title to see which one a necklace uses.
What affects the price of solitaire necklaces?
Stone type and size drive the price most. Lab-grown diamond differs from cubic zirconia, and carat weight or millimeter size matters. Yellow versus white 14K gold and the setting, such as four-prong or a bail, can also play a part. Use the Price filter on this page to set a budget.
Which solitaire necklace styles are most popular?
Round lab-grown diamond solitaires in 14K gold lead the list. Round cubic zirconia styles in 14K yellow gold also rank high, along with four-prong settings and bail styles. For more stones in a necklace, see Diamond Necklaces.