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Paraiba Tourmaline

A Paraíba tourmaline is a copper-bearing elbaite tourmaline of neon blue, greenish blue or green, named after the Brazilian state where it was discovered in the late 1980s and now also mined in Mozambique and Nigeria. The electric colour, produced by copper and manganese, has no equal in any other gem, and clean stones of good size are among the rarest in the trade. Byrex Gems offers Paraíba tourmaline to the jewellery trade from Toronto, filmed unedited, with prices for approved buyers and viewings by appointment.

Where to buy Paraiba tourmaline in Toronto

New Paraiba tourmaline come in regularly, and what we don't hold ourselves we can source through our offices worldwide. Viewings are at our Toronto office, 27 Queen Street East, Suite 407, steps from Queen subway station, by appointment. We have supplied coloured gemstones and natural fancy colour diamonds to jewellers and designers since 1988, and welcome private clients by appointment. Prices are shown to approved trade accounts; private clients can ask us on WhatsApp, where we reply within 12 hours, or by email within 24 hours. Every stone ships insured, worldwide.

What is Paraíba tourmaline and where is it found?

Paraíba tourmaline is elbaite in which copper, usually with manganese, produces a range of colours from a vivid turquoise and neon blue through greenish blue to an intense green. Copper alone gives the blue; manganese adds violet, which heating removes; the two together produce the greens and the famous electric blue-green. The saturation is so high that even small stones appear to glow, and the colour does not go flat under incandescent light.

The first stones came from the hills of São José da Batalha in Paraíba state, north-eastern Brazil, in the late 1980s, after years of digging by the prospector Heitor Dimas Barbosa. Nearby deposits in Rio Grande do Norte, at Mulungu and Quintos, produced similar material soon after. The Brazilian pockets were small and the crystals mostly fractured, so Brazilian stones are typically under a carat and clean stones above two or three carats are exceptional.

In 2001 copper-bearing tourmaline was found in Nigeria, near Ofiki in Oyo state, and in the mid-2000s at Mavuco in Mozambique's Nampula province. African stones are generally lighter in saturation but occur in much larger sizes, and the best Mozambican material rivals Brazilian colour.

How laboratories define and report Paraíba

The Laboratory Manual Harmonisation Committee, LMHC, whose members include GIA, Gübelin, SSEF, GRS and other major laboratories, agreed a harmonised definition that settled the question. Under it, "Paraíba tourmaline" is a trade name for a blue, bluish green to greenish blue, or green tourmaline of medium-light to high saturation and tone, coloured mainly by copper and manganese, regardless of its geographic origin. A copper-bearing stone that is too pale, too dark or of the wrong hue does not qualify and is reported as copper-bearing tourmaline without the trade name.

Origin is reported separately, as an opinion. Laboratories separate Brazilian from Mozambican and Nigerian material by trace-element chemistry, measuring a set of trace elements and comparing the results with reference stones, together with inclusions. Reports state Brazil, Mozambique or Nigeria, and sometimes record origin as inconclusive.

Heating is common and must be disclosed. Most copper-bearing tourmaline is heated at low temperature to remove the violet component from manganese and bring out the blue or green; the process leaves few traces, so reports often state that heating is common for this type and may not be detectable, or note indications of heating where inclusions show it. An unheated report is prized, particularly for Brazilian stones.

What to check before buying a Paraíba tourmaline

Ask for the report first and read three lines: the trade name, which should say Paraíba tourmaline under the LMHC definition; the origin opinion; and the treatment comment. A stone sold as Paraíba without a report from a laboratory that applies the harmonised definition is a risk, because copper-bearing tourmaline of weak colour and ordinary blue tourmaline are both passed off under the name.

Then judge the colour viewed from the top under daylight-equivalent light and under an incandescent lamp. The stone should glow in both. Mozambican stones are often lighter and larger, Brazilian stones smaller and more intense, and the price should follow the colour and the origin together. Check for the greyish or greenish-grey tone that marks lower grades.

Brazilian stones are frequently included with fractures, tubes and needles, and the trade accepts more inclusions here than in any other tourmaline; a clean Brazilian stone above a carat is scarce. African stones are expected to be cleaner. Cut orientation matters as in all tourmaline, and ovals, cushions and pears are the usual shapes. Pairs are difficult in Brazilian material and more achievable in Mozambican; Byrex lists two stones as a pair only when the parcel paper or report says so, otherwise as a close match.

What drives the value of a Paraíba tourmaline

Saturation drives value above every other quality. The market pays most for the neon blue and the electric blue-green at full saturation, with a tone that is neither pale nor dark, and the price drops steeply as the colour softens toward a conventional turquoise or picks up grey. Pure greens are valued below the blues and blue-greens but still well above ordinary tourmaline.

Origin is the second lever. A Brazilian origin opinion carries a large premium at equal colour, because the Brazilian deposits are small and largely exhausted and the stones are the original and the most saturated. Mozambican stones of fine colour follow, and Nigerian material generally sits below.

Size multiplies value sharply, more so for Brazilian stones, where a clean stone above two carats is a rarity and above five carats a collector's piece. Heating is assumed, so an unheated report adds a premium rather than heating removing one. A report from a laboratory that applies the LMHC definition is not a bonus but a precondition for the top of the market.

Discovery, supply and the name

Heitor Dimas Barbosa began digging in the hills near São José da Batalha in Paraíba state in the early 1980s on the conviction that something lay beneath them. The first copper-bearing crystals emerged in the late 1980s, and when cut stones reached the Tucson gem show the colour caused a sensation; prices rose many times within a few years, and the deposit was dug out in a series of small pockets that were largely exhausted by the early 1990s.

The African discoveries of the 2000s, in Nigeria and then Mozambique, brought copper-bearing tourmaline in larger sizes and greater volume, and set off a dispute over whether these stones could be called Paraíba. The LMHC definition resolved it for the laboratories by tying the name to copper content and colour rather than to origin, while requiring the origin to be stated separately. The trade has largely followed, and auction catalogues now describe Mozambican stones as Paraíba tourmaline with the origin given.

Supply at the top remains thin. Brazilian production is small and sporadic, Mozambique's Mavuco deposit has slowed, and fine stones from both are traded mainly between dealers and at auction. Paraíba tourmaline has become one of the few coloured stones whose finest examples compete with ruby, sapphire and emerald at the major sales.

Buying Paraiba tourmaline from Byrex Gems

Byrex Gems has served the jewellery trade from Toronto since 1988, and more than seven thousand jewellers, designers and dealers have bought from us in that time, some of them for decades. Many of our Paraiba tourmalines carry reports from GRS, SSEF, Gübelin, GIA and other leading laboratories, and every stone is filmed in our office, unedited, so what you see is what arrives.

Approved trade buyers see prices online. A message on WhatsApp at +1 (437) 450-3786 is answered within hours; an email to info@byrex.com, the same day, seven days a week. What is listed is a part of what we hold: more Paraiba tourmalines are kept in the vault, and what we do not hold ourselves we can source through our offices worldwide. Private viewings are arranged by appointment in Toronto, Hong Kong, Bangkok and Dubai.

Paraiba Tourmaline: questions buyers ask

Can a tourmaline from Mozambique be called Paraíba?

Yes, under the LMHC harmonised definition, which applies the trade name to copper-bearing tourmaline of the right blue, blue-green or green colour and saturation regardless of origin. Reports state the origin separately, and Brazilian stones carry a premium over Mozambican or Nigerian ones.

Is Paraíba tourmaline usually heated?

Usually. Low-temperature heating removes the violet tint from manganese and brings out the blue or green. It leaves few traces, so reports often state that heating is common for the type or note indications where found. Unheated reports are prized, especially for Brazilian stones.

How do laboratories tell Brazilian Paraíba from African?

By trace-element chemistry, measuring a set of elements and comparing the results with reference stones of known origin, together with inclusions. The origin is stated as an opinion, Brazil, Mozambique or Nigeria, and some reports record it as inconclusive.

Which reports does Byrex supply with Paraíba tourmaline?

GIA, Gübelin, SSEF, GRS, Lotus or AGL depending on the stone, each applying the harmonised definition, stating an origin opinion where requested and commenting on heating. The report number and wording appear on each stone page, and the original accompanies the stone.

Why are Brazilian Paraíba stones so small?

The Brazilian deposits were small pockets of fractured crystals, worked out largely by the early 1990s. Most Brazilian stones are under a carat, and clean stones above two carats are exceptional. Mozambique and Nigeria produce larger, generally lighter stones.

Does Byrex source Paraíba tourmaline on request?

Yes. Much of the collection is not shown online, and Byrex sources Paraíba tourmaline to a brief through its offices and partners. State the colour, size, origin and treatment requirement, and Byrex will present candidates filmed unedited with their reports.

What does neon mean for a Paraíba tourmaline?

Neon describes the glowing, highly saturated blue or blue-green that copper produces, bright enough that even small stones appear lit from within and do not go flat under incandescent light. It is a trade description of the look, not a laboratory grade.

Can I view Paraíba tourmaline in Toronto?

Yes, by appointment at 27 Queen Street East, Suite 407, Toronto. Byrex shows the stone under daylight-equivalent and incandescent light with its laboratory report beside it, so the colour, origin line and treatment comment can be checked together.

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