Sennin Esko Jewelry

Sennin Esko Jewelry Handmade Fine Jewelry and Custom Cut Gemstones by Sennin

My newest tanzanite trillion. A hawt 3 carats with strong to vivid color. It is blue and purple, 9mm from flat to point,...
04/09/2026

My newest tanzanite trillion. A hawt 3 carats with strong to vivid color. It is blue and purple, 9mm from flat to point, 8.4mm from corner to corner, and 6.1mm in depth. The uncut gem was sourced from Tanzania. Faceted in my Universe Cut™ with my modern trillion design. As of writing, this gem is available on my website (link on my profile). Thanks for looking!

Floral bright cut engraved 14kt yellow gold ring I made two summers ago🫣.  For this specific project, I made a his and h...
01/20/2026

Floral bright cut engraved 14kt yellow gold ring I made two summers ago🫣.  For this specific project, I made a his and hers. Each line was hand cut. Each time I make a version of this ring, the lines are sketched and cut a little bit differently, and a little improvisation is incorporated to keep them one of a kind. It also keeps the work interesting for me. More details about this ring on my website (link on my profile).
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New Lagoon sapphire Kite! 1.4 carats, 7.1x7mm. It's available on my website. How's this for new ring inspiration? _Sapph...
09/15/2025

New Lagoon sapphire Kite! 1.4 carats, 7.1x7mm. It's available on my website. How's this for new ring inspiration?
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New 2.3 Carat Cornflower Blue Umba sapphire cushion. Some inclusions typical of sapphires from this origin are visible. ...
09/14/2025

New 2.3 Carat Cornflower Blue Umba sapphire cushion. Some inclusions typical of sapphires from this origin are visible. It is a very desirable color and size, especially for a ring. I faceted this sapphire in my contemporary cushion Universe Cut ™ de sign. It is available on my website. A clickable link is on my profile. Thanks for looking and happy Sunday!
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Great Barrington, MA
01230

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