a=24,0 mm; b=15,0 mm; c=2,00 mm; d=12,00 mm, sterling silver (AG-925)
A=11,50 mm; B=12,70 mm; C=14,60 mm; D=3,10 mm, sterling silver (AG-925)
A=8,00 mm; B=10,00 mm; C=12,00 mm; D=3,00 mm, sterling hopea (AG-925)