Nikki by Nicole MeraBoulder Opal Jewelry Elevated Style. Vibrant Elegance. Please note: Availability and pricing is available for the items that are listed In Stock/Ready to Ship. If you have any questions regarding pricing or availability, please email us info@nicolemera.com 4.24ct Freeform Australian Boulder Opal & Diamond Two-Stone Ring $2,245.00 7.28ct Freeform Australian Boulder Opal & Diamond Star Necklace 1.52ct Boulder Opal & Orange Sapphire Two-Stone Ring $3,625.00 3.67ct Freeform Australian Boulder Opal & Diamond Ring in Platinum $6,400.00 29.75ct Freeform Australian Boulder Opal, Mandarin Garnet & Star Diamond Necklace Freeform Australian Boulder Opal & Gold Cuff Freeform Australian Boulder Opal & Diamond Necklace 17.77ct Freeform Australian Boulder Opal & Tanzanite Necklace $6,745.00 33.96ctw Australian Boulder Opal & Zircon Dangle Earrings 4.00ct Boulder Opal Ring in 14K Yellow Gold $1,495.00 Australian Boulder Opal Necklace in 14k Yellow Gold 18.09ctw Australian Boulder Opal Dangle Earrings Sale! 3.72ct Australian Boulder Opal & Diamond Necklace $2,895.00 Original price was: $2,895.00.$2,316.00Current price is: $2,316.00. Sale! 3.94ctw Australian Boulder Opal & Diamond Stud Earrings $4,295.00 Original price was: $4,295.00.$3,650.00Current price is: $3,650.00. 6.67ct Freeform Australian Boulder Opal & Diamond Ring $4,850.00