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 3.67ct Freeform Australian Boulder Opal & Diamond Ring in Platinum $6,400.00 29.75ct Freeform Australian Boulder Opal, Mandarin Garnet & Star Diamond Necklace 38.46ct Freeform Australian Boulder Opal & Gold Cuff 49.66ctw Freeform Australian Boulder Opal & Diamond Necklace 17.77ct Freeform Australian Boulder Opal & Tanzanite Necklace $6,745.00 Sale! 33.96ctw Australian Boulder Opal & Zircon Dangle Earrings $5,800.00 Original price was: $5,800.00.$4,930.00Current price is: $4,930.00. 4.00ct Boulder Opal Ring in 14K Yellow Gold $1,495.00 12ct Australian Boulder Opal Necklace in 14k Yellow Gold $2,995.00 18.09ctw Australian Boulder Opal Dangle Earrings 3.72ct Australian Boulder Opal & Diamond Necklace $2,895.00 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