★Golden Ratio Gift - The Golden Ratio is also known as the Fibonacci Sequence, Divine Proportion, Golden Mean, or Golden Section. This golden ratio necklace is suitable for giving to people who like geometry or mathematics.
★Material: Made of Environmentally Friendly top material Stainless Steel, Safety and environmental protection. Cubic Zirconia, no harm to skin and never fade color and non-deformation.
★This makes a great gift for math lovers, math teacher, architects, mathematician, scientist or fans of Euclid.
★If you have any question, please feel free to contact us first, we will reply in 24 hours. We will make each gift with the full heart, thanks for your attention again.