The value of unique engagement ring is determined by theirs grading under the 4 Cs, color, clarity, cut and carat weight.
titanium ring experts would never attempt to verify a diamonds color in a setting, and would insist on a certified color comparison before attempting to make a fair evaluation, confirming how difficult differences in color grades are to see.
ideal cut diamonds is strong bonding and carbon composition cause its surface to repel water but to readily accept wax and grease.