Tourmaline collier rainbow

A rainbow tourmaline necklace combines multicolored gems in a chromatic gradient, a high jewelry piece showcasing Brazil's mineral wealth.

About this subject

A rainbow tourmaline necklace is a high jewelry piece that brings together faceted tourmalines in different colors, arranged from red to violet. Tourmaline is a group of complex silicate minerals known for its exceptional color range, which includes green, pink, blue, yellow, orange, and purple. Some crystals exhibit pleochroism, displaying different colors from various angles. With a Mohs hardness of 7 to 7.5, tourmaline is suitable for everyday wear.

The finest gem-quality tourmalines come from Brazil, particularly Minas Gerais and Bahia, producing green (verdelite), pink (rubellite), and blue (indicolite) varieties. Other significant sources include Afghanistan, Pakistan, Nigeria, and Mozambique. Bicolor or tricolor tourmalines, such as the watermelon type (green with a pink core), are highly prized for their rarity. To create a rainbow necklace, a lapidary selects stones that form a harmonious gradient, requiring skill and a large inventory of colored gems.

In the luxury market, rainbow tourmaline necklaces are crafted by renowned houses like Van Cleef & Arpels, Tiffany & Co., and independent Brazilian designers. Each piece is unique, depending on the availability of specific color hues and design elements that may include white or yellow gold, set with diamonds. Prices range from a few thousand to hundreds of thousands of reais, based on total carat weight, clarity, and origin. Popularity has grown with the trend for colored gemstones and appreciation for natural Brazilian gems.

To maintain the necklace's beauty, avoid exposure to chemicals, extreme heat, and impacts. Clean with warm water and mild soap using a soft brush. Store separately to prevent scratches.

Frequently Asked Questions

How can I identify a real tourmaline?

Real tourmaline shows strong pleochroism, hardness 7 to 7.5 on Mohs scale, and natural inclusions. A quick test is observing color change when rotating the gem. For certainty, consult a gemologist.

Where do tourmalines for rainbow necklaces come from?

Most come from Brazil (Minas Gerais and Bahia), but also from Afghanistan, Pakistan, Nigeria, and Mozambique. Brazilian tourmalines are famous for their color variety and gem quality.

How much does a rainbow tourmaline necklace cost?

Price varies widely based on total carat weight, clarity, and design. Pieces from renowned jewelers can range from $1,000 to over $100,000. Necklaces with rare tourmalines (like Paraíba) are even more expensive.