SEDA OPALS OWNER, PAUL SEDAWIE, IS THE CURRENT PRESIDENT OF THE OPAL ASSOCIATION INC. THE ASSOCIATION HAS PRODUCED A BODY TONE CHART GUIDE (N1 TO N9) WITH 9 STONES ATTACHED. THIS ALLOWS THE CUSTOMER TO GUAGE A DARKNESS OR.  LIGHTNESS FACTOR FOR ALL OPAL STONES. SO ON THE CHART YOU CAN SEE A COLOUR TONE AND A STONE RELATING TO THAT TONE.

. STONES FROM N6 TO N9 ARE SOLID OPALS, THE REST ARE OPAL DOUBLETS. THE BASE BODY TONE GUIDE REFERS TO THE DARKNESS OR LIGHTNESS OF THE OPAL. THE ONLY DETERMINING FACTOR OF BODY TONE, IS THE FRONT FACE OF THE STONE. THE BUYER SHOULD IGNORE THE MATERIAL ON THE BACK AND THE PLAY OF COLOUR AND BRIGHTNESS OF THE STONE.

**PLEASE NOTE THE BODY TONE GUIDE IS NOT A BRIGHTNESS CHART IE. TWO SIMILAR STONES MAY HAVE THE SAME LEVEL OF BRIGHTNESS BUT HAVE TWO DIFFERENT "N" RATINGS.

THE CHART IS 60 X 130 MM (6 MM = 1/4 INCH). THE STONES ON THE CARD VARY FROM 6 X 4 TO 7 X 5

PART OF THE PROCEEDS OF THIS SALE  GOES TO THE OPAL ASSC