If you are searching for the BEST unheated Ceylon sapphire strongly consider this one for it represents the highest caliber on all accounts including being untreated/unheated, precision round brilliant cut with additional pavilion facets for added brilliance, super top of the line cornflower blue color (color is actually richer than depicted in the photos), excellent clarity and astounding bright blue brilliance.
The sapphire weighs 1.53 carats, measures 6.55 x 4.80 MM and is certified by the prestigious American Gem Lab as being untreated. An elegant and sophisticated Simon G. ring mounting joins the high quality sapphire to create this premier piece of jewelry. The ring has 0.13 carats of round brilliant yellow diamonds and 0.41 carats of round and fancy kite cut white brilliant diamonds the diamonds are SI1 clarity and H color. The ring is made with 4.5 grams of 18K white gold and is a size 7 3/4. (Please let us know your size request on the order form).