GRS 5.42 ct. Colombian Trapiche Emerald & Trillion Cut Diamond Ring in Platinum & 18K Gold

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Trapiche emeralds are a rare variety of emerald, named after a six-spoked cogwheel used in sugar cane mills (trapiche de cańa azucar in Spanish). During the emerald crystal's formation, black carbon impurities enter the emerald, forming a six point pattern as they fill in the gaps between growth sectors of the hexagonal crystal structure. The earliest mention of trapiche emeralds dates back to 1879, when French mineralogist Emile Bertrand described a trapiche emerald at the meeting of the Société Géologique de France. ​ The majority of trapiche emeralds are found in Colombia, but they are also mined in Brazil and Madagascar.​ ​ Trapiche emeralds in finer qualities are cherished by collectors due to their rarity and beauty.


This magnificent three-stone ring features a very rare 5.42 ct. natural Colombian trapiche emerald flanked by gem quality trillion cut diamonds in a custom made platinum setting with 18K yellow gold talon prongs!  Stamped "PLAT 18K".

Accompanied by GRS Gemstone Report # GRS2017-084099 stating "Insignificant Oil" (Very Rare!)


 

ITEM DETAILS

Metal: Platinum & 18K Gold

Finish: Bright Polish

Ring Size: 6.5

Hallmarks: "PLAT 18K"

Gross Weight: 7.4 grams (4.8 dwts)


GEMSTONE DETAILS

Quantity: 1

Gem Variety: Trapiche Emerald

Gem Species: Beryl

Nature: Natural

Shape: Round

Cutting Style: Cabochon

Hue: Green with Black Matrix

Tone: Medium Dark (GIA 6)

Saturation: Strong (GIA 5)

Symmetry: Very Good

Brilliancy: 85%

Clarity: SI2 (GIA Type III)

Transparency: Translucent

Treatments: Insignificant Oil

Measurements: 10.11 x 9.88 x 6.61mm

Carat Weight: 5.42 ct.

GRS Report #: GRS2017-084099


DIAMOND DETAILS

Quantity: 2

Cut: Trillion Cut

Color: D

Clarity: VS1-VS2

Measurements: 5.35 x 5.28 x 2.63mm, 5.30 x 5.11 2.95mm

Total Carat Weight: 1.00 ct.