HPHT (High-Pressure High-Temperature) yellow diamond single crystals with large grain sizes are synthetic diamonds produced by simulating the natural diamond formation process under extreme pressure ...Lihat Lebih Lanjut
Pesan dari pengunjungTinggalkan pesan.
Belum ada komentar publik
3.0mm 3.5mm, 4.0mm,4.5mm besar HPHT mono berlian kristal tunggal