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Gem #6 of 9

Diamond

Heera · Vajra / Hira
वज्र / हीरा
Almas (Persian), Adamas (Greek "unconquerable")
Ruling Planet
Shukra (Venus)
Beej Mantra (108 times before wearing)
ॐ शुं शुक्राय नमः (108 times)
Om Shum Shukraya Namah
Finger
Middle finger (madhyama) of right hand
Metal
Platinum, white gold, silver (NOT yellow gold for jyotish use)
Weight
0.25 to 1 carat (much smaller than other gems acceptable due to potency)
Day
Friday

Best time to wear

Friday morning (sunrise), Shukla paksha

Who should wear

Venus weak or in adverse house. Shukra mahadasha. Taurus, Libra, Capricorn, Aquarius ascendants.

Who should NOT wear

Aries, Scorpio, Cancer, Leo ascendants (Venus is functional malefic). Spiritual aspirants — Venus increases worldliness.

Benefits

  • Enhances charm, beauty, sensuality, magnetism
  • Improves love-life and marital harmony
  • Aids artistic careers — cinema, music, design, fashion
  • Builds wealth, luxury, comfort
  • Improves reproductive and hormonal health
  • Helps in diplomacy and refined relationships
Side-effects if worn wrong

Sensual indulgence, infidelity, reproductive problems, kidney issues, debt from luxury spending.

Color & composition

Color: Colorless (D-grade) most prized for jyotish; faint yellow, pink also used

Mineral: Pure carbon (C) in cubic crystal structure

Hardness (Mohs): 10 (hardest natural substance)

Primary origin: South Africa, Russia, Botswana, Australia; historically India (Golconda)

Quality indicators (avoiding fakes)

GIA / IGI certified. Color D-H, Clarity VS or better, no eye-visible inclusions, no fluorescence to avoid (medium-strong blue reduces value).

Price range (approximate, 2025-26 India)

GIA-certified 0.5ct G-VS1: ₹50,000 – ₹1,50,000. 1ct same grade: ₹2,50,000 – ₹6,00,000. Lab-grown CVD: ₹15,000 – ₹50,000 (NOT jyotish-effective per most acharyas — debated).

Affordable substitutes

White Sapphire (Safed Pukhraj), White Zircon, White Topaz — strong Venus substitutes at low cost

Trial duration

7 days — Venus effects subtle, observe relationships and mood

Critical cautions

Never wear with Yellow Sapphire (Venus-Jupiter enmity). Avoid lab-grown for serious astrological use — natural diamond carries the karaka effect.