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Calibrated · Loose Ruby
Natural Ruby Round Gemstone 4.5mm | Genuine Red Ruby Loose Stone for Rings, Earrings & Custom Jewelry
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
- Round
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Finish with a chain
All chains-
Venetian Box-Link Chain in Sterling Silver with Spring Ring clasp
From $140.84
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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
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14K Gold 1 mm Solid Rope Chain
From $47.30
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14K Gold 1.3 mm Cable Chain
From $1,177.70
Every size at actual size
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About these stones
PRODUCT DESCRIPTION
This natural ruby round gemstone features a striking red hue and a versatile 4.5mm size, making it an excellent choice for custom jewelry creations.
Perfect for jewelers, designers, and gemstone enthusiasts seeking an authentic ruby with timeless appeal and everyday wearability.
About This Piece
Celebrate the beauty of one of the world's most treasured gemstones with this genuine natural ruby. Expertly cut into a classic round shape, this stone offers lively brilliance and rich color that instantly elevates any jewelry design.
Its balanced proportions make it suitable for elegant solitaire settings, accent arrangements, and heirloom-inspired pieces. Whether incorporated into a handcrafted ring, pendant, or pair of earrings, this ruby delivers enduring sophistication and natural charm.
Key Details
• Stone/Material: Natural Ruby (Corundum)
• Cut/Shape: Round Faceted
• Color/Tone: Deep Red to Crimson Red
• Clarity/Grade: Natural Gemstone Quality
• Metal: Loose Stone – Setting Not Included
• Size/Weight: 4.5mm Round
• Finish: High Polish Faceted Surface
• Setting: Compatible with Prong, Bezel, Halo, and Vintage Mountings
Why You'll Love It
• Highly sought-after precious gemstone with lasting value
• Brilliant round cut enhances sparkle and light performance
• Durable gemstone suitable for daily-wear jewelry designs
• Versatile size for both minimalist and statement creations
Perfect For
Ideal for July birthstone jewelry, custom engagement rings, anniversary gifts, family heirlooms, and artisan jewelry projects. This ruby complements yellow gold, rose gold, white gold, platinum, and sterling silver settings beautifully.
A meaningful gemstone choice symbolizing love, passion, confidence, and prosperity.
Quality Promise
Every ruby is carefully examined for cut, color, and overall appearance before shipping. We select gemstones that showcase natural beauty while maintaining consistency in size and craftsmanship.
As a natural gemstone, each ruby may display unique characteristics that make it genuinely one of a kind.
Shop Info
• Processing Time: 1–2 Business Days
• Shipping: Domestic & International Shipping Available
• Returns: Accepted Within 30 Days of Delivery
• Gift Wrapping: Available Upon Request
• Certificate: In-House Authenticity Certificate Available
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.