Once you hit your 14th wedding anniversary.
"Seventy-five Years of Marriage for the Diamond Anniversary". This was the traditional number; now it is more common to see the diamond anniversary celebrated after 60 years.
A Golden Wedding Anniversary is 50 years.
25 years
They were married in early October 1992, so as of October 2012, they will have celebrated their 20th anniversary.
Ivory
A platinum wedding anniversary is 70 years of marriage
Ruby Anniversary.
It is Lace
A ruby anniversary is celebrated after 40 years of marriage.
25 years
A 150th anniversary.
The 10th wedding anniversary is called the "Tin Anniversary."* Traditional gift: Tin or aluminum * Modern gift: Diamond jewelry * Gemstone: Diamond * Flower: Daffodil