Photos show stones from the current lot. Every stone you receive matches the size and grade you choose.
Calibrated · Jewelry
Cognac Quartz Gemstone, Cushion Checkerboard Cut, Loose Gemstone
Sold per stone. Pick a size; the price drops as you add more of the same stone.
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over $35 - 30-day returns
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- Shape
- Cushion
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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
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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
About This Gemstone
Discover the captivating beauty of our Cognac Quartz Cushion Checkerboard Loose Gemstones, featuring rich brown coloration and elegant geometric faceting in five versatile sizes.
Cognac Quartz is appreciated for its warm, earthy appearance, with sophisticated tones reminiscent of golden amber, caramel, and rich cognac. Its distinctive color makes it a beautiful choice for gemstone collectors and jewelry designers.
The classic cushion shape features a softly squared outline with rounded corners, creating an elegant silhouette that complements both contemporary and vintage-inspired jewelry.
Each gemstone features a distinctive checkerboard cut, characterized by a geometric arrangement of facets across the gemstone's surface. This decorative faceting creates visual depth and adds an attractive light-reflecting pattern.
Available in 4mm, 8mm, 10mm, 12mm, and 14mm, these gemstones offer flexibility for different custom jewelry projects. Smaller sizes can be incorporated into delicate accent designs, while larger sizes are especially attractive as focal gemstones in rings and pendants.
The warm cognac-inspired brown coloration pairs beautifully with yellow gold, rose gold, white gold, and silver. Their versatile appearance allows them to complement minimalist jewelry as well as elaborate statement pieces.
As loose gemstones, these Cognac Quartz options provide the flexibility to create personalized jewelry that reflects your individual style.
Whether selected for custom jewelry making or a gemstone collection, these Cushion Checkerboard Cognac Quartz gemstones offer timeless color, beautiful faceting, and versatile design possibilities.
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.