Peridot Stones

Peridot is the gem-quality variety of the silicate mineral group olivine, specifically the magnesium-rich member Forsterite ((Mg, Fe)₂SiO₄):

• Idiochromatic Coloration: Unlike “allochromatic” gemstones (such as sapphires or quartz) whose colors stem from trace impurities, Peridot is strictly idiochromatic. Its vivid olive-to-lime green color is an intrinsic part of its basic chemical crystal structure caused by fundamental divalent iron (Fe²⁺) ions. As a result, genuine natural peridot occurs exclusively in shades of green—ranging from bright chartreuse to warm golden-olive and rich deep green.
• Sapat Valley (Pakistan) Origin: Our entire collection originates from the high-altitude glacial deposits of the Sapat Valley (Kohistan, Pakistan), celebrated worldwide for yielding exceptional gem-quality crystals with intense green saturation, remarkable transparency, and minimal inclusions. Read our Peridot Buying & Value Guide for detailed grading standards.

Gemologists authenticate natural Peridot using distinctive optical and internal microscopic characteristics:

• Strong Double Refraction (Birefringence): Peridot possesses an exceptionally high birefringence of 0.036 (refractive index 1.654–1.690). When examined through the table facet under a 10x gemological loupe, the facet edges on the opposite side of the pavilion appear distinctly doubled. This pronounced optical doubling instantly separates natural peridot from glass imitations, green tourmaline, or emerald.
• Diagnostic “Lily-Pad” Inclusions: Natural peridot characteristically contains circular, disc-like liquid-gas cleavage feathers surrounding tiny dark octahedral crystals of chromite or chromian spinel—known gemologically as “lily pads.”
• 100% Untreated Status: Unlike many colored gemstones that undergo heat treatment or irradiation, natural peridot is virtually never enhanced. Every stone in the Ratna Gems inventory is guaranteed 100% natural, Earth-mined, and unheated.

Every Peridot (Zabarjad) stone sold by Ratna Gems is individually tested and accompanied by an independent accredited gemological laboratory testing report. The certificate identifies the mineral species as Natural Olivine (Forsterite), gemstone variety as Natural Peridot, exact carat and ratti weight, dimensions, specific gravity (3.32–3.37), refractive index (1.654–1.690), birefringence (0.036), hardness (6.5–7.0 on Mohs scale), and confirms unheated and untreated status. Each report includes a unique certificate number and verifiable QR code for direct verification on the issuing laboratory’s official portal.

Optional International Certification: Every gemstone includes an independent accredited laboratory certificate at no charge. If you specifically require an additional report from GII, IIGJ, or IGI, you can select it directly from the certification dropdown on any product page upon request (official laboratory testing fees apply in advance on a non-refundable basis).

With a Mohs hardness of 6.5 to 7.0, Peridot is durable for daily rings, pendants, and bracelets when handled with appropriate care:

• Avoid Thermal Shock: Peridot is sensitive to abrupt, severe changes in temperature, which can induce internal tension or microscopic fractures. Never subject peridot jewelry to boiling water, steam cleaners, or rapid shifts between hot water and cold environments.
• Chemical Sensitivity: As an iron-magnesium silicate, peridot can be attacked by strong acids (such as sulfuric acid, hydrochloric pickling acid, or harsh household chemicals). Always remove peridot jewelry prior to swimming or domestic cleaning.
• Safe Cleaning: Clean gently with lukewarm water, mild dish soap, and a soft microfiber cloth or camel-hair brush. Never use ultrasonic cleaners or steam cleaners. Store your peridot separately in a padded fabric pouch to avoid surface contact with harder gems like sapphires or diamonds.

For customers observing classical Indian customs, traditional literature outlines the following customary conventions:

• Customary Metals: Panchdhatu, Sterling Silver (925 Silver), or Yellow Gold are traditionally considered the ideal setting for Peridot.
• Traditional Placement: Customarily worn on the little finger (Kanishtha) or ring finger of the working hand.
• Traditional Timing: Customary traditions often observe Wednesday mornings during Shukla Paksha (waxing moon) at sunrise.
• Traditional Role (Upratna): Historically recognized in Vedic gemological texts as the primary classical substitute (Upratna) for Emerald (Panna), associated with Mercury (Budh).

Please Note: Ratna Gems shares these details solely for cultural and informational awareness for customers seeking traditional jewelry. We sell all gemstones strictly on the basis of verified physical authenticity, mineral quality, and certified origin, and make no astrological, metaphysical, or medical claims.