A jeweler sent us an antique Diamond ring which was missing one of the Sapphires.
The missing Sapphire had been seated against the round bezel which held the center Diamond. That side of the Sapphire was curved to fit against that bezel.
Below you will see how we made a new curved Sapphire to fit into the ring.
You can see that there is a blue Sapphire missing from the right side of this ring
The Sapphire has a curve carved into the edge where it snuggs up against the bezel which holds the center Diamond.
I am carving the curve into the Sapphire with a hand tool and a diamond carving tool.
The curve needs to match the edge of the bezel. So I frequently put the Sapphire up against the bezel to see if the curve matches.
I use a digital caliper to measure the opening in the ring where the Sapphire will fit into.
The size of the stone needs to be perfect. It can't be too big or it won't fit. It can't be too small or it will sit too low and also won't be wide enough visually.
I am now putting the finishing polish on the crown.
You can see that the stone has a cissors cut on the crown. The cissors cut is very commonly used on the gemstones which are set in antique jewelry.
This shows the Sapphire set into the ring. It has not been set with metal yet because I do not do stone setting. A jeweler will need to set it.
Shows the finished Sapphire sitting next to the ring, ready to be set.
→ Take me back to examples of Custom Faceting Tiny Gemstones . . .
Denton Anderson,
Gemologist & Gem Cutter
click photo for Video
Graduate Gemologist, GIA, GG
Over 20 years of experience.
