Celtic Blue Topaz Triquetra Knot Sterling Silver Ring Crafted with an irresistible, Celtic inspired design, December babies will love this sterling silver ring. Accented by a vivid, oval, blue topaz surrounded by a triquetra knot motif. Triquetra style Measure: Width: 3mm Weight: 2.6 Grams Material: .925 Sterling Silver, Natural Blue Topaz 7mm by 5mm stone, 2mm band width Weight: 2.6 gram Crafted with an irresistible, Celtic inspired design, December babies will love this sterling silver ring. Accented by a vivid, oval, blue topaz surrounded by a triquetra knot motif. Triquetra style Measure: Width: 3mm, Weight: 2.6 Grams, Material: .925 Sterling Silver, Natural Blue Topaz.