Natural Black Tourmaline Stone 5.00 Carat (5.49 Ratti)

Natural Black Tourmaline Stone — 5.00 Carat (5.49 Ratti)

Photos: Check main, back, in-hand, and side photos for colour, polish, and height (5 mm).

What you are buying: Natural black tourmaline at an even 5.00 carat (about 5.49 ratti) — easy to compare with other “five carat class” stones. Oval Mixed Cut. Size about 12.5 × 9 × 5 mm: wide face with moderate crown — usually fine in normal ring settings. Ratna Gems lists this as natural tourmaline (schorl type). If testing paperwork is included with your shipment, read it for that provider’s conclusions.

Documentation: If a gem testing report is included with your order, it is the official source from that laboratory only. We do not reproduce your specific document here.

Colour: Ratna Gems specification: greenish black. Photos show this stone. Listing title uses “black tourmaline” for search.

Gem facts: Usually schorl. GIA: tourmaline about 7–7.5 Mohs.

Size: 12.5 × 9 × 5 mm — give these to your jeweler for prong or bezel planning.

Detail	Value
Weight	5.00 Carat (5.49 Ratti)
Size (L × W × H)	12.5 × 9 × 5 mm
Colour (Ratna Gems specification)	Greenish Black
Shape / cut	Oval Mixed Cut
Transparency	Opaque (light does not pass through this stone)
Luster	Vitreous (glass-like shine, typical for natural tourmaline)
Chemical composition	Iron-rich tourmaline (schorl type) — complex boron aluminium silicate. Reference formula: NaFe²⁺₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Stone type / variety	Natural Tourmaline — black tourmaline (schorl)
Hardness	7.0 to 7.5 on Mohs scale (see GIA tourmaline overview)
Specific gravity (typical range, schorl)	About 3.06 to 3.25
R.I. (reference range)	1.61 to 1.65 — typical range for this material; confirm against any documentation supplied with your order.
Treatment	Un-Heated & Un-Treated
Indian / trade name	Vikrant Mani
Material (Ratna Gems listing)	Natural tourmaline (black tourmaline / schorl) — how we describe and sell this stone. Verify on any authentication paperwork included with your purchase.

Why people buy black tourmaline

Strong look in gold or silver, and 5 carat is a simple mental benchmark when shopping.

Astrology and belief (read this)

Not Navratna, not a classical Neelam stand-in. For jewelry or belief — no promised outcomes. Ask your astrologer for personal advice.

Is this stone right for you?

Choose this for a mid-weight natural black tourmaline at a round 5.00 carat with balanced proportions.

Simple care

• Lukewarm water, mild soap, soft brush; rinse and dry.
• Avoid chemicals and sudden hot–cold.
• Store away from softer gems.

Collection: Tourmaline Stone. Guide: Black Tourmaline complete guide.