- 5 x 5 mm Round
- 0.50 carats
- AA Quality
- eye-clean
- Origin: Switzerland
This vivid blue lab sapphire engagement ring holds deep symbolism in its design, with its celtic knot, round halo center stone, and .31 carats of diamonds. The curvy lines in the Celtic knot represent the infinite, everlasting love you and your partner will share as you travel along the journey of life together. Lab Sapphire is known as the gem of sincerity and trust and is the birthstone for the month of September.