Gemstones

Gemstone Dictionary

A reference of gemstones by name — meanings, hardness and lore. Covers all twelve birthstones plus classics like rose quartz and lapis lazuli.

Garnet

ガーネット

Truth, friendship & loyalty

Mohs 6.5–7.5 January birthstone

Amethyst

アメジスト

Sincerity, peace of mind & nobility

Mohs 7 February birthstone

Aquamarine

アクアマリン

Serenity, courage & wisdom

Mohs 7.5–8 March birthstone

Diamond

ダイヤモンド

Eternal bond, purity & invincibility

Mohs 10 April birthstone

Emerald

エメラルド

Fortune, happiness & hope

Mohs 7.5–8 May birthstone

Pearl

パール(真珠)

Health, wealth, longevity & purity

Mohs 2.5–4.5 June birthstone

Ruby

ルビー

Passion, love & dignity

Mohs 9 July birthstone

Peridot

ペリドット

Marital happiness & harmony

Mohs 6.5–7 August birthstone

Sapphire

サファイア

Wisdom, sincerity & nobility

Mohs 9 September birthstone

Opal

オパール

Hope, luck & creativity

Mohs 5.5–6.5 October birthstone

Topaz

トパーズ

Friendship, hope & integrity

Mohs 8 November birthstone

Turquoise

ターコイズ

Success, prosperity & safe travels

Mohs 5–6 December birthstone

Moonstone

ムーンストーン

Intuition & new beginnings

Mohs 6–6.5 June birthstone

Citrine

シトリン

Prosperity & abundance

Mohs 7 November birthstone

Tourmaline

トルマリン

Hope & open-heartedness

Mohs 7–7.5 October birthstone

Tanzanite

タンザナイト

Mystery & quiet dignity

Mohs 6–7 December birthstone

Rose Quartz

ローズクォーツ

Love & tenderness

Mohs 7

Lapis Lazuli

ラピスラズリ

Truth & good fortune

Mohs 5–5.5

Tiger’s Eye

タイガーアイ

Insight & courage

Mohs 7

Onyx

オニキス

Protection & willpower

Mohs 6.5–7

Clear Quartz

水晶(クォーツ)

Cleansing, harmony & balance

Mohs 7

Jade

翡翠(ひすい)

Longevity, prosperity & virtue

Mohs 6.5–7

Agate

アゲート(瑪瑙)

Harmony, stability & bonds

Mohs 6.5–7

Labradorite

ラブラドライト

Intuition, mystery & change

Mohs 6–6.5

Malachite

マラカイト(孔雀石)

Protection from danger

Mohs 3.5–4

Hematite

ヘマタイト(赤鉄鉱)

Vitality, courage & grounding

Mohs 5.5–6.5

Amber

琥珀(こはく)

Health & longevity

Mohs 2–2.5

Carnelian

カーネリアン

Courage & passion

Mohs 6.5–7

Obsidian

黒曜石(オブシディアン)

Protection & insight

Mohs 5–5.5

Fluorite

フローライト(蛍石)

Focus & inspiration

Mohs 4

Aventurine

アベンチュリン

Healing & growth

Mohs 7

Alexandrite

アレキサンドライト

Noble heart & hidden devotion

Mohs 8.5 June birthstone

Spinel

スピネル

Passion & vitality

Mohs 8 August birthstone

Zircon

ジルコン

Serenity & success

Mohs 6.5–7.5 December birthstone

Bloodstone

ブラッドストーン(血石)

Courage & resilience

Mohs 6.5–7 March birthstone

Sunstone

サンストーン

Freedom, vitality & hope

Mohs 6–6.5

Jasper

ジャスパー(碧玉)

Stability & nurturing

Mohs 6.5–7

There is no single official standard for stone meanings; we present widely known traditions. Hardness and mineral groups are standard mineralogy — About our data