Skip to main content
Natural Zircon 4.90 Carat – 5.38 Ratti - View #1

Natural Zircon 4.90 Carat – 5.38 Ratti

SKU: SGTL007281

₹7,350
Certified Natural White Zircon (Jarkan) weighing 4.90 Carat (5.38 Ratti) in an exquisite oval mixed cut. 100% natural, Earth-mined zirconium silicate displaying intense diamond-like fire and high double refraction. Accompanied by an accredited laboratory certificate.
Laboratory Certificate✓ Free lab report included
Guaranteed Safe & Secure Checkout
Google Pay
UPI
Mastercard
Cash on Delivery
Lab Certified
Insured Delivery
Mine-to-Market
Price
₹7,350

Gemstone & Physical Specifications

Verified gemological characteristics and certified measurements.

Weight
4.90 Carat (≈ 5.38 Ratti)
Shape / Cut
Oval Mixed Cut
Treatment
100% Natural / Un-Treated
Transparency / Clarity
Transparent
Hardness
7.5
Specific Gravity (S.G.)
4.60 - 4.70
Conclusion / Identification
Natural White Zircon (Jarkan)
Dimensions
9.50 x 7.00 x 5.50 mm
Origin
Ceylon (Sri Lanka)
Color
Sparkling White
Species / Mineral
Natural Zircon
Refractive Index (R.I.)
1.925 - 1.984
Fluorescence
Inert
Certification Lab
SGTL / ISO Certified Laboratory

Detailed Product Description

Natural White Zircon (Jarkan) – 4.90 Carat (5.38 Ratti)

This Natural White Zircon (historically known in Indian gemology as Jarkan) weighs exactly 4.90 Carats (5.38 Ratti). Precision-cut into an elegant Oval Mixed Cut, this Earth-mined natural gemstone displays dazzling adamantine brilliance, high dispersion (“fire”), and remarkable optical scintillation.

Mineralogical Identity & Physical Constants: Natural Zircon is a nesosilicate mineral composed of Zirconium Silicate (ZrSiO4), crystallizing in the tetragonal crystal system. It must never be confused with synthetic cubic zirconia (CZ, a cheap synthetic substance); Natural Zircon is an ancient Earth-formed mineral dating back over 4 billion years. Gemological testing verifies an exceptionally high refractive index of 1.925 to 1.984, high birefringence (+0.059) showing diagnostic facet doubling under 10x magnification, a dense specific gravity of 4.60 to 4.70, and a resilient Mohs hardness of 7.5.

Cultural & Traditional Context: In classical Vedic astrology, Natural White Zircon is governed by Venus (Shukra) and revered as an esteemed canonical substitute (Upratna) for Natural Diamond (Heera). Customary traditions suggest mounting White Zircon in Sterling Silver (925 Silver), White Gold, or Platinum for Friday morning wear on the ring finger (Anamika) or middle finger (Madhyama) of the working hand.

Please Note: Ratna Gems shares these historical, cultural, and gemological details solely for educational awareness. We sell all gemstones strictly on the basis of verified physical authenticity, mineral quality, and accredited laboratory certification, and make no astrological, metaphysical, or curative claims.

Frequently Asked Questions

Is Natural Zircon different from Cubic Zirconia (CZ)?
Yes, completely. Natural Zircon is an authentic, Earth-mined natural mineral (Zirconium Silicate, ZrSiO4) formed in the Earth's crust over geological epochs. Cubic Zirconia (CZ) is an inexpensive man-made synthetic zirconium oxide material manufactured in laboratories. Ratna Gems sells only 100% natural Earth-mined Zircon.
What causes the remarkable sparkle and facet doubling in Natural Zircon?
Natural Zircon possesses an extraordinarily high refractive index (1.925–1.984) and a dispersion rate (0.039) close to diamond. Furthermore, its extreme birefringence (+0.059) splits light rays so strongly that looking through the crown facets reveals diagnostic doubled facet edges, creating a lush, dense scintillation.
How does Carat weight compare to traditional Ratti for this stone?
This gemstone weighs 4.90 Carats, corresponding to 5.38 traditional Sunari Ratti (1 Carat = 200 mg; 1 Sunari Ratti ≈ 0.91 Carats). Both measurements are explicitly certified on your official laboratory test report.
How is the authenticity and certification of this Zircon verified?
Every Natural Zircon includes an independent accredited gemological laboratory testing report confirming natural zirconium silicate identity, dimensions, refractive index, specific gravity (~4.70), and untreated natural status. If you specifically require an additional report from GII, IGI-GTL (IIGJ), or GIA, you can select it directly from the certification dropdown on this product page upon request (official laboratory testing fees apply in advance on a non-refundable basis).
How durable is Natural Zircon, and how should it be cleaned?
With a Mohs hardness of 7.5, Natural Zircon is hard and resists scratching. However, because facet edges can abrade under hard impact, protective settings (like bezels or low-set prongs) are recommended. Clean gently with warm water, mild soap, and a soft cloth. Never use ultrasonic or steam cleaners.

Customer Reviews

Verified feedback across our certified Zircon Stone (Jarkan Stone) collection. Because each natural gemstone is rare and one-of-a-kind, reviews reflect genuine patron experiences with this gemstone family.

Sign In to Write a Review