Black Chalcedony / rose cut
オニキス(加熱染色)/カット入りカボション
- Round facetted 5mm
- Round facetted 6mm
- Round facetted 8mm
- Round facetted 10mm
- Round facetted 12mm
- Round facetted 14mm
- Round facetted 16mm
- Round facetted 18mm
- Round facetted 20mm
- Round facetted 22mm
- Round facetted 25mm
- Round facetted 30mm
- Oval facetted 6×4
- Oval facetted 7×5
- Oval facetted 8×6
- Oval facetted 9×7
- Oval facetted 10×8
- Oval facetted 12×10
- Oval facetted 20×15
- Oval facetted 22×15
- Oval facetted 30×22
- Oval cut 40×30
- Round rosecut 12mm
- Round rosecut 18mm
- Heart rosecut 6x6mm
- Heart rosecut 8x8mm
- Heart rosecut 10x10mm
- Star rosecut 8x8mm
染色について/オニキス
天然カルセドニー・天然アゲート原石に炭素イオンを数ヶ月間高圧環境で染み込ませ、加熱により色の改変処理をしたものです。色素による着色と違い、数十年から数百年にわたり色を保持することが可能です