About Us
Luxury Lab Diamond Jewelry Without the Retail Markup
Carat Spark is a premium destination for lab-grown diamond jewelry, specializing in high-quality
engagement rings,
diamond necklaces,
diamond bracelets,
diamond earrings—all crafted in 14K gold.
With a legacy of fine jewelry expertise dating back to 1918, we combine generations of craftsmanship with modern innovation to deliver exceptional diamonds—without the traditional retail markup.
Premium Lab-Grown Diamonds. Unmatched Value.
At Carat Spark, we source our lab-grown diamonds directly from growers, giving you access to premium stones at highly competitive prices.
Explore our curated selection of:
Every diamond is selected for:
- Maximum brilliance and fire
- Excellent color and clarity (F–E color, VVS quality and above)
- Precision cutting for optimal sparkle
All diamonds over 1 carat are certified, ensuring full transparency and confidence.
Designed to Stand Out—and Stay Perfect
Our jewelry is engineered for both beauty and wearability.
Discover pieces designed for everyday luxury:
- Diamond Tennis Necklaces – engineered to stay perfectly in place
- Diamond Tennis Bracelets – timeless and durable
- White Gold Diamond Jewelry
Each design prioritizes:
- Higher carat weights for a bold look
- Balanced settings for comfort
- Long-lasting craftsmanship
Custom Diamond Jewelry, Made for You
Create a piece that’s uniquely yours with our Custom Diamond Jewelry service.
Customize your:
- Diamond size and shape
- Setting style
- Gold type (white, yellow, or rose)
Whether you're designing a one-of-a-kind engagement ring or a statement necklace, we bring your vision to life with precision.
A Better Way to Buy Fine Jewelry Online
We’ve simplified the luxury jewelry experience so you can shop with confidence:
- Free, fast shipping on all orders
- Most pieces ship within 2 days
- 30-day hassle-free returns
- Secure, insured delivery
Learn more on our Shipping Policy and Returns & Exchanges pages.
Why Choose Carat Spark?
When you shop Carat Spark, you’re choosing:
✔ High-quality lab-grown diamond jewelry
✔ Direct sourcing for better pricing
✔ Certified diamonds you can trust
✔ Custom design flexibility
✔ A brand backed by over a century of expertise
Jewelry That Captures the Moment
Whether you're celebrating an engagement, anniversary, or personal milestone, explore our best-selling pieces:
Carat Spark creates jewelry designed to last—and to be remembered.
Brilliance you can see. Quality you can trust. Value you won’t find anywhere else.