Marquise Shape Lab-Grown Diamond Solitaire Necklace
This marquise cut lab grown diamond necklace is designed to highlight the stone’s elongated shape and refined sparkle. Set in a classic solitaire style, each piece is handcrafted to order in 14K or 18K solid gold and features an IGI certified lab grown diamond. Offering exceptional brilliance, ethical sourcing, and modern elegance, this diamond pendant necklace is ideal for everyday wear or thoughtful gifting.
Necklace Details
Diamond Type: Lab Grown Diamond
Diamond Shape: Marquise
Carat Weight: Available from 1.00 ct to 5.00 ct
Color Grade: D–F
Clarity Grade: VVS–VS
Cut Grade: Excellent
Certification: IGI Certified Diamond + IGI Certified Finished Necklace
Metal Options: 14K or 18K Gold (White Gold, Yellow Gold, Rose Gold)
Setting Style: Solitaire
Chain Length: 16", 17", or 18"
Chain Style: Solitaire Diamond Necklace
Finish: High Polish
Craftsmanship & Care
Handcrafted and made to order
Designed for everyday wear with lasting comfort and durability
Ethically created lab grown diamonds
Each necklace is individually crafted after order confirmation
Luminary Gem — Frequently Asked Questions
Our necklaces are crafted in 14K or 18K solid gold, including white, yellow, and rose gold. All metals are nickel-free and suitable for everyday wear.
- The price of a diamond necklace can vary depending on several factors, including the diamond size, quality, design, and the type of metal used in the setting. A simple solitaire diamond necklace typically ranges from a few hundred to a few thousand dollars.
- Key factors such as the diamond’s cut, color, clarity, and carat weight (the 4Cs) play an important role in determining value. Craftsmanship and design details can also affect pricing.
- At Luminary Gem, a 1 carat lab grown diamond solitaire necklace starts from $346, offering exceptional quality and transparency without the premium pricing often associated with traditional luxury brands.
Yes. We use lab-grown diamonds that are chemically, physically, and visually identical to mined diamonds. Selected designs include IGI certification for verified quality and authenticity.
Most necklaces are available in 16 to 18 inches, offering a flattering fit that sits beautifully along the neckline. Exact length options are listed on each product page.
Absolutely. You can customize the diamond shape, carat weight, metal type, and ring style. If you have a specific design in mind, contact us and we can create a fully custom piece.
Yes. Our necklaces are designed for daily wear. However, we recommend removing them during intense physical activity or when using harsh chemicals to maintain their brilliance.
Most necklaces are made to order. Please allow 2–4 weeks for production and delivery after your order is placed.
Yes. Every necklace is delivered in elegant, protective packaging, making it ideal for gifting.
Yes. Many designs can be customized by selecting your preferred metal type, diamond size, or chain length. Custom options are shown on the product page.