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Diamond & Lab-Grown Diamond Necklaces
IGI-Certified Brilliance. Ethical Craftsmanship. Timeless Design.
Discover diamond and lab-grown diamond necklaces handcrafted in 14K yellow gold, 14K white gold, 14K rose gold, and platinum. From minimalist solitaire pendants to statement tennis necklaces, each piece is designed for exceptional brilliance, lasting durability, and modern sustainability.
Shop with confidenceβtransparent pricing, certified diamonds, secure checkout, and fine-jewelry craftsmanship without traditional retail markups.
Diamond & Lab-Grown Necklace Collection
Timeless Craftsmanship. Personal Expression. Ethical Luxury.
At Stienhardt & Stones, every necklace is handcrafted by experienced jewelers using precision-set diamonds selected for superior cut, clarity, and fire. We specialize in IGI-certified lab-grown diamonds and conflict-free natural diamonds, ensuring beauty with integrity.
Whether youβre selecting a 1 carat lab-grown diamond necklace, a refined everyday pendant, or a bold multi-carat tennis necklace, our collection blends heirloom craftsmanship with responsible sourcing.
- IGI-certified lab-grown diamonds
- Conflict-free natural diamonds
- 14K yellow, white, and rose gold
- Platinum settings
- Custom design consultations available
Halo Diamond Necklaces
Maximum Sparkle. Elevated Presence.
A halo diamond necklace features a center stone surrounded by smaller accent diamonds, enhancing brilliance and creating the illusion of a larger centerpiece.
- Amplifies light reflection and dimension
- Popular with round, oval, and cushion-cut diamonds
- Elegant for formal events and everyday luxury
Solitaire Diamond Necklaces
Pure Elegance. One Perfect Diamond.
Solitaire diamond necklaces highlight a single expertly cut diamondβtimeless, symbolic, and endlessly versatile. Ideal for layering or wearing alone, these designs are favorites for anniversaries, weddings, and signature everyday wear.
- Β½ carat diamond solitaire necklace
- 1 carat lab-grown diamond necklace
- 2 carat diamond pendant necklace
- White gold and yellow gold solitaire settings
- Minimalist bezel and prong-set styles
Explore Solitaire Diamond Necklaces
Diamond Tennis Necklaces
Continuous Brilliance. Statement Luxury.
Diamond tennis necklaces feature a seamless row of precisely matched diamonds, delivering unmatched sparkle and sophistication.
- Lab-grown diamond tennis necklaces
- 1 ct to 20+ carat options
- 14K white gold tennis necklaces
- Platinum diamond tennis necklaces
- Vintage-inspired and modern silhouettes
Perfect for black-tie events, milestone celebrations, or bold everyday styling.
Diamond Pendant Necklaces
Personal. Meaningful. Timeless.
Diamond pendant necklaces offer refined elegance with symbolic expression. From floating bezel settings to heart-shaped and marquise designs, these necklaces are ideal for gifting and daily wear.
- 1 carat diamond pendant necklace
- Floating bezel diamond necklace
- Marquise and cushion-cut pendants
- Heart-shaped diamond necklaces
- Trio diamond pendants
Available in yellow gold, white gold, rose gold, and platinum.
Shop Diamond Pendant Necklaces
Fashion Diamond Necklaces
Modern Design. Elevated Layering.
Our fashion diamond necklaces are designed for contemporary styling and effortless layering, blending modern silhouettes with fine-jewelry craftsmanship.
- Diamond station necklaces
- Paper clip diamond necklaces
- Short 16-inch layering necklaces
- Minimal diamond accent chains
- Diamond design statement pieces
Explore Fashion Diamond Necklaces
Custom & Build-Your-Own Diamond Necklaces
Design a Necklace as Unique as Your Story.
Create a bespoke diamond necklace tailored to your vision. Our design specialists guide you through selecting the ideal diamond, carat size, metal, and setting style.
- Choose lab-grown or natural diamonds
- Select carat weight: Β½ ct, 1 ct, 2 ct+
- Pick metal: yellow gold, white gold, rose gold, or platinum
- Customize halo, solitaire, pendant, or tennis styles
Each custom necklace is ethically sourced, precision-crafted, and designed to last generations.
What Is a Lab-Grown Diamond Necklace?
A lab-grown diamond necklace features a real diamond created using advanced technology that replicates the natural diamond formation process. These diamonds are chemically, physically, and optically identical to mined diamonds.
- Identical brilliance and hardness as natural diamonds
- Ethical, conflict-free origin
- Lower environmental impact
- Exceptional value per carat
All lab-grown diamonds are independently graded for quality and authenticity.
Caring for Your Diamond Necklace
Preserve Brilliance for a Lifetime.
- Clean gently with warm water, mild soap, and a soft brush
- Store separately to prevent tangling or scratching
- Avoid harsh chemicals like chlorine or bleach
- Inspect clasps and settings periodically
- Schedule professional cleaning for long-term maintenance
Why Choose Stienhardt & Stones
- IGI-certified lab-grown and certified natural diamonds
- Expert fine-jewelry craftsmanship
- Ethical, conflict-free sourcing
- Transparent pricing
- Secure checkout and insured shipping
- Custom design support
From minimalist everyday diamond necklaces to bold 20-carat tennis designs, every piece reflects exceptional artistry, responsible sourcing, and timeless elegance.
FAQ's
Yes. Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds. They have the same brilliance, hardness (10 on the Mohs scale), and durability. The only difference is originβlab-created diamonds are grown in advanced laboratories rather than formed underground.
Explore our lab-grown diamond necklaces for certified and ethically sourced designs.
The difference is origin. Natural diamonds form over billions of years beneath the earth, while lab-grown diamonds are created using advanced technology that replicates the same process. Both offer identical sparkle and durability, but lab-grown diamonds typically provide greater value per carat.
The cost of a diamond necklace depends on carat weight, diamond type, setting style, and metal choice. Solitaire necklaces typically start at lower price points, while high-carat tennis necklaces are premium statement pieces. Lab-grown diamond necklaces are generally more affordable than comparable natural diamond designs.
Browse our solitaire diamond necklaces and diamond tennis necklaces to compare options.
For everyday wear, 0.5 to 1 carat is the most popular choice. For statement looks or formal occasions, 3+ carat pendants or multi-carat tennis necklaces create dramatic brilliance. The ideal size depends on your style, neckline preference, and occasion.
Yes. Lab-grown diamond necklaces offer the same brilliance and durability as mined diamonds while being more affordable and environmentally responsible. Many buyers choose them for ethical sourcing and better value per carat.
Yes. You can customize your necklace by selecting the diamond type (lab-grown or natural), carat weight, metal (yellow gold, white gold, rose gold, or platinum), and setting style such as halo, solitaire, or tennis.
Start your design here: Custom Diamond Necklace Consultation.
The most popular metals are 14K yellow gold for warmth, 14K white gold for a modern finish, rose gold for a romantic tone, and platinum for superior durability and hypoallergenic wear. Platinum is ideal for long-term everyday use.
Yes. Diamond necklaces are timeless gifts for anniversaries, weddings, birthdays, graduations, and milestone celebrations. Their lasting value and elegant design make them meaningful keepsakes.
Explore our diamond pendant necklaces for gift-ready styles.
Yes. Many diamond necklaces feature minimalist and modern designs suitable for men. Clean lines, bezel settings, and durable metals make them ideal for everyday wear.
Clean your necklace with warm water, mild soap, and a soft brush. Store it separately to prevent tangling or scratches, avoid harsh chemicals, and inspect clasps and settings periodically to maintain long-term brilliance.