It's an incredibly beautiful blue sapphire. 11mm size Inner diameter is 16cm. #Click here for a list of products I am selling If it turns out to be a fake stone, I will give you a full refund. Please buy with confidence. Healing effects of sapphire ◎Improves work luck and financial luck ◎Enhances courtesy and sincerity ◎Suppresses heightened emotions ◎Enables calm judgment ◎Promotes rationality ◎Prevents infidelity ◎Resists temptation ◎Keeps impure thoughts away Sapphire's stone words "Stone of sincerity," "Stone of success," "Sacred stone" Features of sapphire The name "sapphire" comes from the Latin word "sapphirus" and the Greek word "sappheiros," both meaning "blue color." Sapphire's mineral name is "corundum," and it has the second-highest hardness after diamond. In the past, sapphire was not the name of a specific stone, but a word referring to "blue stones." In the Old Testament era, lapis lazuli was called sapphire. Since ancient times, it has been said to be a stone that symbolizes the sky, and the words "The sky is a giant sapphire that includes the Earth" remain. Sapphire is chosen as the birthstone for September. It is popular as a gift for loved ones celebrating their birthday in September, as well as for oneself. Sapphire is said to enhance the owner's courtesy and sincerity, and to help them gain trust from others. It also enhances work luck, victory luck, and financial luck, and gives a positive feeling towards work. It is a popular stone as a work amulet. It supports you in not being swayed by inertia and not being tempted, giving you the courage to see things through to the end, and becoming a strong ally in achieving your goals. It is also said to be good for love, and it is said to have the effect of maintaining unwavering love and preventing infidelity, making it a recommended stone for those who desire a happy romance or marriage. Present Natural stone Power stone Power bracelet Love luck, romance, financial luck, present, warding off evil, mental stability, anxiety relief, concentration, study, work, peace, November, good luck, savings, blooming, flexibility, calming, overcoming, compensating for weaknesses, emotions, energy, achieving goals, bad luck, bad relationships, concentration, athletic ability, self-defense, potential, mystery, investment, price increase