Coral (Japan) infused with titanium, set in 18k yellow gold ring

Coral (Japan) infused with titanium, set in 18k yellow gold with white gold-plated silver ring

Sliced tip of a crystal, infused with titanium, with 18k yellow gold, set in white gold-plated silver ring

A sliced tip of a crystal, infused with titanium, with an 18k gold counterpart and an 18k gold bezel, set in white gold-plated silver ring

A sliced tip of a crystal, infused with titanium, with an 18k gold bezeland a 18k solid gold nugget, set in white gold-plated silver ring

Lapis lazuli (Afghanistan) and 18k yellow gold ring

Rutilated quartz and lapis lazuli (Afghanistan) with 18K yellow gold bevel, set in 18k yellow gold ring

Lapis lazuli (Afghanistan) with 18k yellow gold, set in a 18k yellow gold-plated silver ring

Turquoise, set in 18k yellow and white gold-plated silver ring

Sleeping beauty turquoise (Arizona, USA) and melted 18k yellow gold, set in a 18k yellow gold ring

Sleeping beauty turquoise (Arizona, USA) and melted 18k yellow gold ring

Druzy quartz infused with titanium, set in 18K white gold-plated silver ring

Triangle cut aquamarine (15.35cts) and diamond pavé, set in 18kt texturized yellow gold ring

Aquamarine and strip of gold-set diamond pavé, set in a white gold-plated silver ring

Mother of pearl (Japan) and moonstone (Madagascar), set in white gold-plated silver ring

Druzy quartz, set in white gold-plated silver ring

Opal (Ethiopia Wello, 17.8 ct) and a cascade of diamonds, set in 18k yellow gold ring

An unusual crystal-embedded-in-a-crystal with rutile needles set in 18k yellow gold ring

Rose quartz with aquamarine and pink sapphire pavé, set in a white gold-plated silver ring

Cobalto calcite (Brazil) crossed with 18k yellow gold, set in white gold-plated silver ring

A sliced tip of an amethyst crystal (Uruguay), crossed in 18k yellow gold, set in white gold-plated silver ring

Rutilated quartz, backed with black jade, set in 18k yellow gold ring

Rutilated quartz cabuchon, backed with black jade, set in 18k yellow gold ring

Star ruby (Myanmar) bezel set in 18k white gold and silicium, set in a white gold-plated silver ring

Silicium crossed with melted 18k yellow gold, set in a white gold-plated silver ring