This stunning lot of 39 pieces natural Tourmaline stones, weighing a total of 64 carats, showcases a mix of cushion cut and emerald cut shapes. Each piece ranges in size from under 1 carat up to 3.85 carats, with dimensions between 12.5×6.5×3.2 mm and 4.2×3.5×3.3 mm. Featuring a vivid green color with clarity from eye clean to slightly included, these untreated Afghan-origin stones highlight their natural beauty and brilliance. Known as the birthstone of October, this vibrant Tourmaline lot is perfect for collectors, jewelers, and gemstone enthusiasts seeking premium quality and unique cuts.

How can I assess the quality of a cut tourmaline—especially in terms of cut, color, clarity, and value?

Cut Quality:

This lot features cushion cut and emerald cut stones. Both are highly sought-after shapes—cushion cuts enhance brilliance with rounded edges, while emerald cuts highlight clarity with elegant step facets. These cuts make the stones ideal for jewelry pieces that showcase both brilliance and depth.

Color Value :

The stones are a vivid green, which is one of the most desirable and valuable colors in Tourmaline. Green tourmaline from Afghanistan often displays lively, bright tones that hold strong appeal in both collector and jewelry markets.
Clarity
The clarity ranges from eye clean to slightly included. This means most stones will appear clean to the naked eye, with only minimal inclusions visible under magnification. For green tourmaline, this level of clarity is excellent, as the vibrant color masks slight inclusions effectively.

Weight, Size & Dimension :

The lot weighs a total of 64 carats with 39 pieces ranging from under 1 carat up to 3.85 carats each. Dimensions span 12.5×6.5×3.2 mm to 4.2×3.5×3.3 mm, making these stones versatile for a variety of jewelry settings, from rings and pendants to matched pairs for earrings.
 

Origin & Treatments:

These stones are from Afghanistan, a renowned source for high-quality green tourmaline. They are 100% natural and untreated, which increases their value and appeal compared to heat-treated or enhanced stones.

 Value Assessment

• 
  Collectors will appreciate the untreated origin and variety of cuts.
  
• Jewelers can use the range of sizes to create multiple fine jewelry pieces.
  
• Investors benefit from a large, natural lot of vivid green stones, which typically appreciate in value over time due to rarity.
  
• Birthstone from October .