Photos show stones from the current lot. Every stone you receive matches the size and grade you choose.
Calibrated · Loose Ruby
Lab Grown Ruby Heart #5 Loose Gemstone | Faceted Red Heart Shape Ruby Stone 8mm–12mm for Rings, Pendants & Jewelry Making
Sold per stone. Pick a size; the price drops as you add more of the same stone.
- Free US shipping
over $35 - 30-day returns
- Ships to
50+ countries
- Shape
- Heart
Make it into a piece
Settings that fit
Every setting here is made for this exact size. Change the size above and the list changes with it.
Your stone, actual size
Pendant and ring settings
Earring settings
Finish with a chain
All chains-
Venetian Box-Link Chain in Sterling Silver with Spring Ring clasp
From $140.84
-
14K Solid Gold FLEX Herringbone Chain – 2.8mm Wide, 18 Inch Flat Gold Chain, Real Gold Necklace for Women, Italian Herringbone Chain
$1,170.31
-
14K Gold 1 mm Solid Rope Chain
From $47.30
-
14K Gold 1.3 mm Cable Chain
From $1,177.70
Every size at actual size
At 100% zoom on a computer screen. Click a size to choose it.
About these stones
PRODUCT DESCRIPTION
Lab Grown Ruby Heart #5 showcases a brilliant ruby-red color in a romantic heart shape, making it a beautiful choice for meaningful jewelry creations. Available in sizes from 8mm to 12mm, these precision-cut gemstones add vibrant color and elegance to any design.
About This Piece
Celebrate love and timeless beauty with Lab Grown Ruby Heart #5. Expertly faceted to maximize brilliance, these gemstones display the rich red hue associated with fine ruby while offering excellent clarity and consistent quality.
The heart shape remains one of the most cherished gemstone cuts, symbolizing affection, passion, and devotion. Whether featured as a centerpiece in a ring, pendant, or custom jewelry design, these gemstones create an eye-catching focal point. Laboratory-grown for dependable color and precision, they are ideal for jewelers, designers, and collectors seeking exceptional value and beauty.
Key Details
• Stone: Lab Grown Ruby #5
• Shape: Heart
• Cut: Faceted
• Color: Rich Ruby Red
• Clarity: Eye Clean
• Hardness: 9 Mohs
• Sizes Available: 8mm, 10mm, 12mm
• Calibration: Precision Cut
• Treatment: Lab Created
Why You'll Love It
• Rich ruby-red color with exceptional brilliance
• Romantic heart shape ideal for sentimental jewelry
• Durable gemstone suitable for everyday wear
• Precision-cut and calibrated for professional settings
Perfect For
• Heart-Shaped Engagement Rings
• Anniversary Jewelry
• Pendants & Necklaces
• Valentine's Day Gifts
• July Birthstone Jewelry
• Custom Jewelry Designs
• Statement Rings
• Fine Jewelry Manufacturing
Quality Promise
Each Lab Grown Ruby Heart #5 gemstone is individually inspected for cut quality, color consistency, clarity, and calibration. We carefully select gemstones that meet professional jewelry-making standards.
Shop Info
• Processing Time: 1–2 Business Days
• Worldwide Shipping Available
• Secure Packaging Included
• Returns Accepted Within 30 Days
• Authenticity Certificate Available Upon Request
How we grade
A: lighter colour, visible inclusions. Good for fashion pieces and practice settings.
AA: even colour, some inclusions you can see up close. Everyday jewelry.
AAA: rich colour, eye clean. Fine jewelry.
AAAA: the top colour we cut, eye clean. Statement and heirloom pieces.
Market Basics or Precision
Market Basics: good outlines; sizes and depths vary a little stone to stone. Best value for settings you adjust by hand.
Precision: even outlines and matched depths. Drops into pre-notched castings and lines up in rows and halos.



