Editors

5 Things to Know About … Trapiche Gems

EditorsNov 07, 2017

5 Things to Know About … Trapiche Gems

Here are a handful of interesting facts about the colored stones with a pattern usually resembling a wheel.

20171107_Trapiche-header.jpg
Emerald trapiche stars from gemstone dealer Mayer & Watt, weighing (from left to right) 9.97 carats, 7.37 carats and 7.75 carats
When it comes down to it, I think what’s most appreciated about a great colored gemstone is the fascination at what Mother Nature created--how the color is so vivid or saturated, how they can grow so large, how they tell the story of the Earth.

Trapiche gemstones are a great example of this. The geometry and symmetry of the stones created by their rayed patterns are truly spectacular and valued for both their beauty and uniqueness.

Trapiche emeralds were first on the scene, at least according to written records, with the name adopted because of their resemblance to “trapiche de caña de azucar,” the Spanish name for the six-spoked cogwheel used in sugar mills.

Beyond the almost-immediate fascination trapiches spark with their beauty and rarity, there’s plenty to know about these stones, starting with these five points below.

1. Trapiche gems have equivalent crystallographic growth patterns separated by boundaries of inclusions.
According to the Gemological Institute of America’s “Gems & Gemology,” these boundaries intersect at a central point or extend from a central core, creating a pattern that, often, resembles a wheel.

Trapiche gems also are characterized by their high symmetry--which appears in a hexagonal manner, for example, for emeralds--and feature inclusions of organic matter.

2. There are a number of gemstones that can be found in trapiche variations.
The spoke patterns that define trapiche gemstones are best known in the popular green beryl, but one can also find trapiche corundum, garnet, tourmaline and chiastolite, though chiastolite only exhibits four arms, InColor said.

3. The history of (finding and studying) trapiche is long.
Or at least for emeralds, that is.

According to Gems & Gemology, Colombian trapiche emeralds were first described by French mineralogist Emile Bertrand in 1879 at a meeting for the Société Géologique de France, though they did not yet have a name.

The first known use of trapiche emeralds in jewelry is in an early-19th century gold ring by an unknown artist that was bequeathed to the Victoria & Albert Museum in London.

Trapiche rubies from Burma, meanwhile, were first documented by the GIA in 1995, according to InColor, but the stones also have been found in Guinea, Kashmir, Pakistan, Nepal, Sierra Leone and Tajikistan. 

Trapiche sapphires first appeared on the gem market in early 1996, when samples were offered in Basel by a Berlin gem dealer, and have been found in Australian, Cambodia, China, France, Kenya, Madagascar, Nepal, Sri Lanka, Tanzania and more.

4. Supply and demand have stayed fairly consistent.
As with any rare gemstone, trapiches are still pretty hard to come by, goldsmith and jeweler Paul Farmer said.

But there may be an opportunity, however big, with pieces or partial trapiche stones, he said, which can make unique pieces such as butterfly wings.

He sees some opportunity in this area as more lower-quality gems come onto the market, noting that they can “make fun, inexpensive pieces,” he said.

Jeffery Bergman of Primagem said emerald trapiche continue to be the most available and in highest demand of all trapiche gems.

Trapiche rubies from Burma, meanwhile, tend to be mostly under 1-carat in size, he added, and rather dark, requiring thin slicing to get the best color and trapiche pattern, which has had the effect of restricting their use in jewelry.

Bergman also said fine trapiche sapphires from Mogok, Burma are still in high demand with very limited supply.

“Most of the material on the market is semi-translucent to opaque, and the occasional gemmy translucent example fetches several thousand dollars per carat,” he said.

He added that Vietnam has been producing some semi-translucent-to-opaque trapiche sapphires ranging in size from 5 to more than 50 carats and reasonably priced at about $50 per carat for finer pieces.

Simon Watt of gemstone dealer Mayer & Watt also said that supply hasn’t changed much, with the fine stones still hard to come by and with the bulk of demand from gem connoisseurs.

What’s more, “There’s never enough (supply) for the demand to be so great,” he said.

In fact, he hasn’t seen a resupply of trapiche sapphires in the past year.

The difference for him, though, is that he’s been marketing the material for years, and it’s paid off with an increased buzz around the gemstones.

5. Prices have increased. 
The downside to the buzz he’s created, Watt said, has been a price increase; he said he’s seen prices double in the past five years for fine material. 

This is not to mention the rarity of the stones keeping prices high. 

Bergman also noted that prices of emerald trapiche have doubled and tripled over the past several years as well-known jewelry designers like Selim Mouzannar, Omi Prive and Erica Courtney have incorporated them into award-winning designs. 

Still, Watt is hopeful prices will start leveling out, if nothing else, and notes that when he does get trapiche stones, he has rarely has trouble selling them. 

“The end user is really looking for something very unique that blows their mind. Trapiches do just this because you look at them and think, ‘Nature is truly incredible, isn’t it?’”

Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

The Edit – A Gallery of Italian Jewelry Masterpieces Graphic
Events & AwardsOct 17, 2025
An Edit of Italian Jewels Is Coming to NYC

The new showcase dedicated to Italian jewelry design is set for Oct. 29-30.

Judi Powers Jewelry Stella Earrings
TrendsOct 17, 2025
Piece of the Week: Judi Powers Jewelry’s ‘Stella’ Earrings

Take a gaze at the sky with this pair of platinum diamond-set star earrings with blue lace agate drops.

Charles London, Mayer and Fran Udell, Mark and Candy Udell
IndependentsOct 17, 2025
From the Jazz Age to the Information Age: London Jewelers Turns 100

In 2026, the jewelry retailer will celebrate a milestone only a small percentage of family-owned businesses survive to see.

LIM-401 2024 National Jeweler Supplier Bulletin- iD100 Web and Eblast FINAL (2) (1).jpg
Brought to you by
Protect Your Customers and Your Business

You deserve to know what you are selling–to protect your customers as well as your business and your reputation.

Jeffrey Zimmer Reeds Jewelers
IndependentsOct 16, 2025
Retailer Hall of Fame 2025: Jeffrey Zimmer

Jeffrey Zimmer's decades of leadership at Reeds Jewelers are defined by integrity, a love of sourcing gemstones, and a heart for community.

Weekly QuizOct 16, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Sothebys salon new bond street
AuctionsOct 16, 2025
Sotheby’s Introduces Custom Jewelry Service

The new high jewelry design and production process takes 30 days or less from concept to completion, the auction house said.

Oscar Heyman 2025 Holiday Catalog Cover
MajorsOct 16, 2025
Oscar Heyman’s Holiday Catalog Is Out, and It’s Spectacular

The holiday catalog for 2025 features never-before-seen images of more than 100 one-of-a-kind masterpieces.

ja_fall_2024_by_headshot_stories_6824.jpg
Brought to you by
JA New York Fall Is Right Around the Corner

The upcoming show provides savvy retailers with the opportunity to stock their cases with best sellers in advance of the holiday season.

Foundrae United in Love Campaign Imagery
CollectionsOct 16, 2025
Foundrae Adds To ‘United in Love’ Collection

The brand has released a second installment of its collection of traditional and non-traditional commitment heirlooms.

Kathy Corey
IndependentsOct 15, 2025
Retailer Hall of Fame 2025: Kathy Corey

Corey rescued New England chain Day’s Jewelers, preserving its legacy with strong people skills, pragmatism, and a “get-it-done” attitude.

Colorado jeweler Peter Damian Arguello
CrimeOct 15, 2025
Men Receive Lengthy Prison Sentences for 2023 Murder of Colorado Jeweler

Charles Robinson Shay was sentenced to life in prison plus 120 years while his accomplice, Michael James McCormack, got 75 years.

Douriean Fletcher Messenger Collection
Events & AwardsOct 15, 2025
‘Douriean Fletcher: Jewelry of the Afrofuture’ Opens at MAD

The Museum of Arts and Design's new exhibition features 75 pieces by the designer, best known for her work in the “Black Panther” films.

Logo for Timepieces at Luxury
Events & AwardsOct 15, 2025
JCK, Luxury to Debut New Watch Section in Vegas Next Year

Timepieces at Luxury will take place at The Venetian and, like Luxury, will be invitation-only for the first two days.

Max Fawcett Claibourne Poindexter
AuctionsOct 15, 2025
Christie's Announces New Jewelry Department Leadership

The auction house named a new global head of jewelry, as well as a new head of the jewelry department for the Americas.

Schwanke-Kasten Jewelers, Tom Dixon
IndependentsOct 14, 2025
Retailer Hall of Fame 2025: Tom Dixon

As chairman of Schwanke-Kasten Jewelers, Tom Dixon has been tasked with honoring the past and shaping the future of the family-run store.

Katty Villapando Lyte and Mica Rencher of Shimmer LLC
Events & AwardsOct 14, 2025
Here Are the Winners of the BIJC, JA ‘Emerging Jewelers’ Grant

Katty Villapando Lyte and Mica Rencher received a $10,000 grant for their business, Shimmer Culture LLC.

Cooper Flagg family at Day’s Jewelers
IndependentsOct 14, 2025
Day’s Jewelers Crafts Custom Jewelry for No.1 NBA Draft Pick Cooper Flagg

The parents of the Dallas Mavericks rookie bought their engagement ring at a Day’s store in Bangor, Maine, in 1997.

Pragnell Kitulo Garnet collection
SourcingOct 14, 2025
Pragnell Debuts Kitulo Garnet Jewelry

The UK-based brand sourced the gemstones, which are fully traceable, from an artisanal mining community in Tanzania.

Astrid & Miyu 2025 12-Day, 24-Day, Solid Gold Advent Calendars
CollectionsOct 10, 2025
Count Down to the Holidays With Astrid & Miyu’s Advent Calendars

The trio of Advent calendars include a version with 18-karat gold and lab-grown diamond jewelry in a red lacquer jewelry box.

Front of Marla Aaron porcelain Nymphenburg Lock
CollectionsOct 10, 2025
Piece of the Week: Marla Aaron’s ‘Nymphenburg Lock’

Created in collaboration with Nymphenburg Porcelain, the lock is part of a four-piece collection that took two years to bring to fruition.

Alisa Bunger Frederick Goldman
MajorsOct 10, 2025
Frederick Goldman Names New VP of Sales

Jewelry industry veteran Alisa Bunger has taken on the role.

Feriel Zerouki, De Beers Chief Trade and Industry Officer
SourcingOct 09, 2025
Feriel Zerouki Is Leaving De Beers

The company and industry leader’s two-decade tenure with De Beers will come to a close at the end of the month.

Fabergé Imperial Winter Egg
AuctionsOct 09, 2025
This Fabergé Egg Could Crack $27M At Auction

“The Winter Egg” set the world auction record for a Fabergé piece twice at previous Christie’s sales.

Kessler watch battery recycling program
MajorsOct 09, 2025
Sy Kessler Buying Watch Batteries as Silver Hits Record High

The company will pay 1.5x silver’s current spot price for each pound of silver oxide batteries submitted.

Katkim Men’s Collection Shadow Pendant Necklace and Anerise Signet Band
CollectionsOct 09, 2025
Katkim Launches First Men’s Collection

The line includes a “Shadow” series crafted exclusively for the new men’s offering and reimagined styles from the brand’s core collections.

Gemfields Rough Rubies
SourcingOct 09, 2025
Gemfields’ Mini Mixed-Quality Ruby Auction Garners $11M

The rough on offer was recovered from a newer area at the Montepuez mine.

“Storied Diamond Desert Sands of Eternity” engagement ring and wedding band
SourcingOct 08, 2025
In ‘Storied Diamond,’ Jared Jewelers Is Emphasizing the Journey

The retailer’s new collection of engagement rings and fashion jewelry is set with natural diamonds that are traceable via blockchain.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy