The size does not matter as much as the quality of the diamond in question. Today, there are many styles of rings that can accommodate almost any gemstone, but keep in mind one point when updating or resetting an heirloom. Should this be the case with an heirloom ring that has been in the family for many years, a skilled jeweler may be able to remake the ring, retaining the original appearance and workmanship.
Explanation of Cut, Color and Clarity of This Diamond
Cut Quality Diamonds of fair cut quality are still quite attractive, but they may not be as brilliant as the top 3 grades. Fair cut diamonds are proportioned to yield more carat weight from the diamond rough. Such diamonds may be attractive to budget-conscious customers.
Color Trained people can see yellow in a J color diamond pretty easily. You can also do this by placing the diamonds upside down on a white piece of paper and looking at them from the side. J-color diamonds offer an excellent trade off for price and quality - excellent choice for the budget conscious.
Clarity VS2 Clarity diamonds are very slightly included grade two. VS2 diamonds have minor inclusions that are visible at 10x magnification. They are less expensive than the VS1 clarity grade because they exhibit slightly more inclusions. VS2 clarity diamonds make excellent choices for jewelry because the naked eye will not be able to detect any inclusions.