Lapis lazuli vs Sapphire

사파이어와 라피스 라줄리는 외관이 유사하여 자주 비교됩니다. 사파이어의 경도는 모스 9.0이며 라피스 라줄리는 5.5입니다. 가격 면에서 사파이어는 프리미엄 등급이고 라피스 라줄리는 경제적입니다.

Property Lapis lazuli Sapphire
Category Semi-Precious Gems Precious Gems
Primary Color blue blue
Mohs Hardness 5.5 9.0
Specific Gravity 2.5 3.95
Refractive Index 1.5 1.762
Crystal System Isometric Trigonal
Luster Vitreous,Greasy rutile
Chemical Formula
Price Tier Budget (< $50/ct) Investment ($5,000+/ct)
Daily Wear 아니오

Key Differences

  • {'gem_a': '5.5', 'gem_b': '9.0', 'property': 'Hardness (Mohs)'}
  • {'gem_a': 'Isometric', 'gem_b': 'Trigonal', 'property': 'Crystal System'}
  • {'gem_a': '2.5', 'gem_b': '3.95', 'property': 'Specific Gravity'}
  • {'gem_a': '1.5', 'gem_b': '1.762', 'property': 'Refractive Index'}
  • {'gem_a': 'Vitreous,Greasy', 'gem_b': 'rutile', 'property': 'Luster'}
  • {'gem_a': 'budget', 'gem_b': 'investment', 'property': 'Price Range'}
  • {'gem_a': 'No', 'gem_b': 'Yes', 'property': 'Daily Wear'}

When to choose Lapis lazuli

우수한 경도와 내스크래치성, 높은 광채와 광학 성능을 원한다면 사파이어를 선택하세요. 약혼반지와 일상 주얼리에 이상적입니다.

When to choose Sapphire

경제적인 가격대와 역사적 의미를 원한다면 라피스 라줄리를 선택하세요. 컬렉터 표본과 신중하게 착용하는 주얼리에 이상적입니다.

Frequently Asked Questions

Which is harder, Lapis lazuli or Sapphire?
Sapphire is harder at 9.0 on the Mohs scale, compared to Lapis lazuli at 5.5. This makes Sapphire more resistant to scratching. Sapphire is suitable for daily wear, while lapis lazuli requires more careful handling and is not ideal for daily wear.
Is Lapis lazuli more expensive than Sapphire?
No, Lapis lazuli is generally less expensive. Lapis lazuli is classified as budget-friendly (under $50/ct) at budget-friendly (under $50/ct), while Sapphire is investment-grade ($5,000+/ct) at investment-grade ($5,000+/ct).
Should I choose Lapis lazuli or Sapphire for an engagement ring?
For an engagement ring, Sapphire is the stronger choice with a durability rating of 10/10. At 9.0 Mohs hardness, it can withstand daily wear well. Lapis lazuli (5.5 Mohs) is softer and more prone to scratching with everyday use, making it better suited for occasional-wear jewelry.
How can I tell Lapis lazuli and Sapphire apart?
There are several visual cues: both appear blue, but often in different saturations; Lapis lazuli has a vitreous,greasy luster compared to Sapphire's rutile luster; Sapphire (RI 1.762-1.788) shows more brilliance than Lapis lazuli (RI 1.5-1.67); they have different crystal systems — Lapis lazuli is Isometric and Sapphire is Trigonal. A gemologist can confirm identification using refractive index testing.
Why do Lapis lazuli and Sapphire look similar?
Lapis lazuli and Sapphire look similar because both gems display blue hues.

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