Shop › Necklace Matte onyx squares 3/8”, 20” with 18k clasp and/or 18” with 18K clasp Image 1 of 1 Necklace Matte onyx squares 3/8”, 20” with 18k clasp and/or 18” with 18K clasp $1,350.00 $1250.00 for 20” and $995.00 for 18”. Can by attached to each other for long strand. Add To Cart Added! $1250.00 for 20” and $995.00 for 18”. Can by attached to each other for long strand. You Might Also Like Blue Lapis Reversible Necklace $1,295.00 Meadowflower Pin/Pendant $4,950.00 Sold Blue Lace Chalcedony Strand $2,150.00 Sold Split Triangle Pendant $995.00 Sold Rubellite Tourmaline Charm/Pendant in 22k and 18K (chain not included) $795.00 Sold