More about the gemstones:

African Opal is a calming, soothing & purifying stone. It is used to see all possibilities in situations & to cultivate creativity, insight and inspiration. Green Opal is a healing & rejuvenating gemstone that is known to strengthen the Heart Chakra.

Amethyst is an extremely powerful & protective stone with high spiritual vibrations. It guards against psychic power. Its serenity enhances higher states of consciousness & meditation. It is an excellent cleanser for the blood. Also, enhances memory & improves motivation. Amethyst stimulates the Crown & Throat Chakra.

Prehnite is a stone of unconditional love and is the crystal to heal the healer. It is a calming stone that can bring peace and protection to your environment. Prehnite is useful for decluttering , letting go of possessions you no longer need and arranging what you keep in an appropriate way. This is a great crystal for deep meditation and can help the visualization process. 

How to measure:

These bracelets have a sturdy elastic band, so you can expect a little bit of stretch. Measure your wrist's widest part using a soft sewing tape, note the measurement, and add up to half an inch for a comfortable size.

Womens:

• XS - 6.5 in
•  S - 6.75 in
•  M - 7 in
• L -7.25 in
• XL - 7.5 in

Mens:

• XS - 7 in
•  S - 7.25 in
• M - 7.5 in
• L -7.75 in
•  XL - 8 in