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French Marquise
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Our jewelers curate each gift collection for symbolism, beauty, and lasting value.
Fine Jewelry Crafted with Certified Lab-Grown Diamonds
Expertly crafted lab-grown diamond fine jewelry designed for everyday elegance, ethical sourcing, and lasting brilliance.
Designed by Experts. Crafted to Last.
At Stienhardt, our fine jewelry is designed by experienced jewelers and meticulously crafted using certified lab-grown diamonds.
Each diamond is ethically created, expertly cut, and independently graded to meet strict quality standards.
Every piece is hand-inspected to ensure lasting beauty, comfort, and everyday wearability.
Every piece is hand-finished and inspected across multiple quality checkpoints before delivery.
Shop Fine Jewelry by Category
Explore expertly crafted lab-grown diamond earrings, necklaces, rings, and bracelets, set in premium metals for timeless elegance and everyday wear.
Lab-Grown Diamond Earrings
Timeless lab-grown diamond earrings set in fine gold and platinum, designed for everyday brilliance and lasting comfort.
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Lab-Grown Diamond Necklaces
Elegant lab-grown diamond necklaces crafted in premium metals, perfect for layering or statement wear.
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Lab-Grown Diamond Rings
From everyday bands to iconic designs, explore lab-grown diamond rings crafted for brilliance, durability, and style.
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Lab-Grown Diamond Bracelets
Refined lab-grown diamond bracelets, including tennis styles, designed for uninterrupted sparkle and elegance.
Shop Diamond BraceletsEach category features certified lab-grown diamonds, selected for optimal cut, clarity, and brilliance, and crafted by expert jewelers for enduring quality.
Shop Fine Jewelry by Style
Discover lab-grown diamond fine jewelry designed to complement your personal style and everyday life.
Diamond Stud Earrings
Timeless diamond earrings crafted for everyday brilliance.
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Stackable Rings
Modern diamond rings designed for effortless daily layering.
Explore Stackable Rings
Tennis Bracelets
Classic lab-grown diamond tennis bracelets with uninterrupted sparkle.
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Why Choose Stienhardt Lab-Grown Diamond Jewelry?
Expertly Selected Diamonds
Each lab-grown diamond is carefully selected for exceptional cut, clarity, and brilliance by experienced gemologists.
Ethically & Sustainably Grown
Our diamonds are responsibly created with minimal environmental impact and without mining.
Identical to Mined Diamonds
Lab-grown diamonds share the same physical, chemical, and optical properties as mined diamonds.
Crafted for Everyday Wear
Designed for comfort, durability, and long-term security in premium settings.
As Seen In / Certified By
IGI
GIA
Ethical sourcing
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Fine Jewelry Gifts for Every Occasion
Celebrate meaningful moments with expertly crafted fine jewelry.
Our Standards: Ethics, Expertise & Transparency
From responsibly grown diamonds to expert craftsmanship, every detail meets our highest standards of quality and trust.
IGI & GIA Certified Diamonds
Responsibly Grown & Independently Graded
Expert Craftsmanship
Designed and handcrafted by skilled jewelers with precision, care, and attention to detail.
Certified Diamonds
Every lab-grown diamond is IGI or GIA certified for authenticity, quality, and transparency.
Responsible Sourcing
Our diamonds are ethically grown using advanced technology that prioritizes sustainability.
Quality You Can Trust
Each piece undergoes rigorous inspection to ensure lasting beauty and secure settings.
FAQ's
Questions About Lab-Grown Diamond Jewelry? Our jewelry specialists answer the most common questions about craftsmanship, care, and certification β so you can shop with complete confidence.
Yes. Lab-grown diamonds rank 10 on the Mohs hardness scale, making them as durable as mined diamonds. When securely set in high-quality precious metals and properly cared for, lab-grown diamond jewelry is ideal for everyday wear and long-term use.
Fine jewelry is crafted using premium metals such as 14K or 18K gold and platinum. These metals are selected for their durability, beauty, and ability to securely hold diamonds while remaining comfortable and long-lasting.
Clean lab-grown diamond jewelry with warm water, mild soap, and a soft brush. Avoid harsh chemicals, remove jewelry during strenuous activities, and store pieces separately to prevent scratches and maintain brilliance.
Yes. Fine jewelry can be customized to your preferences. Options typically include diamond shape, carat size, metal type, and design details, allowing you to create a unique piece for a special occasion or personal style.
Lab-grown diamond jewelry offers the same beauty, brilliance, and durability as mined diamonds, while being more ethical and environmentally responsible. Lab-grown diamonds avoid mining and are often more accessible in price without compromising quality.
Consider the recipientβs personal style, lifestyle, and the occasion. Timeless designs like diamond studs, pendants, or tennis bracelets are versatile, making them suitable for many preferences and celebrations.
Yes. Many lab-grown diamond pieces are handcrafted or hand-finished by skilled jewelers. Each piece undergoes careful setting, polishing, and inspection to ensure refined craftsmanship and lasting quality.
It is recommended to have fine jewelry professionally cleaned and inspected once or twice a year. Regular care maintains brilliance, ensures secure settings, and identifies any wear that may require attention.
Determine your ring size using a printable ring sizer, measuring an existing ring, or visiting a jeweler. Many fine jewelry retailers also provide sizing guides to assist with accurate online purchases.
Yes. Lab-grown diamond jewelry typically includes grading reports from independent labs such as IGI or GIA. These reports verify the diamondβs cut, color, clarity, carat weight, and authenticity, giving you transparency and confidence.