Necklace- 2.90 carat trillion cut Blue Topaz Solitaire set in a 10K Yellow Gold pendant. 20 mm x 13 mm. A .01 carat accent Diamond is set above Solitaire in 10K White Gold detail. 18 inch 10K Yellow Gold necklace. Total weight 2.45 grams. Ring- 4.50 carat trillion cut Blue Topaz Solitaire set in a 10K Yellow Gold ring. Diameter- 13 mm. Two accent Diamonds, .01 carat total, are set on each side of the Solitaire in 10K White Gold detail. Size- 6 3/4. Total weight 3.35 grams.