Modern Platinum 2.90 Carat Tanzanite & Diamond Pendant Necklace art deco’ Antique Art Deco 18K White

Antique Art Deco 18K White Gold Transition Cut Diamond Engagement Ring

Secondary Stones: 2 Old European Cut Diamonds

14K Gold 3 Carat Indicolite Blue Tourmaline Ring

5" inner circumference

I have looked but could find nothing on this mark

Modern Platinum 2.90 Carat Tanzanite & Diamond Pendant Necklace art deco’ Antique Art Deco 18K WhiteEra: Modern Composition: Platinum Primary Stone: Pear Cut Tanzanite Carat Weight: Approximately 2. 90 Carats Accent Stone: Round Brilliant Cut Diamond Carat Weight: Approximately . 10 Carat Color Clarity: H VS1 Necklace Total Carat Weight: Approximately 3. 00 Carats Necklace Length: 16 Inches Necklace Weight: 14. 7 Grams Item Barcode: 498687