TIMELESS JEWELS.
ETERNAL STORIES.
Featured Creations
Metal: 18k gold.
0.5 ct oval-cut ParaÃba tourmaline (approximately 6 × 4 mm), set in rose gold, accompanied by 2 marquise-cut diamonds measuring approximately 4 × 2 mm (≈0.08 ct each). Plain polished band with no pavé setting.
1 ct oval-cut ParaÃba tourmaline (approximately 7 × 5 mm), set in rose gold, accompanied by 2 marquise-cut diamonds measuring approximately 5 × 2.5 mm (≈0.15 ct each). Plain polished band with no pavé setting.
Your Theta & Co. experience
Secure checkout. Complete your purchase on our website, with your payment handled by our payment providers.
Personal guidance. For help with gemstones, ring sizing or the documentation for your chosen piece, speak with Theta & Co. before ordering.
Made to order. Estimated production is approximately two weeks for made-to-order pieces, plus delivery time. For a proposal, wedding or other special date, please contact us before purchasing.
Shipping & delivery | Returns & cancellations
Bespoke and personalised pieces have different cancellation conditions. Please review the policy before ordering.
Metal: 18k gold.
Emerald, 0.5 ct emerald size, with a side halo of 2 diamonds, marquise size on each side (4 in total), approx. 4x2 mm ( 0.08 ct c/ u), with 1 round diamond between the marquee on the side of approx. 1.5 mm ( 0.015 ct), 1 round pink diamond per side (2 in total) of approx. 2.5 mm ( 0.06 ct c/u), 1 round yellow diamond per side (2 in total) of approximately 2.3 mm ( 0.05 ct c/u), and band diamond pavé, 6 per side (12 in total) of approximately 1.2 mm ( 0.01 ct c/u).
Emerald size of 1 ct, with side halo of 2 diamonds marquise size on each side (4 in total) of approx. 5x2.5 mm ( 0.12 ct c/ u), with 1 round diamond between the marquees on the side of approx. 1.8 mm ( 0.025 ct), 1 round pink diamond per side (2 in total) of approx. 3.0 mm ( 0.09 ct c/u), 1 round yellow diamond per side (2 in total) of approx. 2.8 mm ( 0.08 ct c/u), and diamond pavé in band, 6 per side (12 in total) of approx. 1.3 mm ( 0.012 ct c/u).
Your Theta & Co. experience
Secure checkout. Complete your purchase on our website, with your payment handled by our payment providers.
Personal guidance. For help with gemstones, ring sizing or the documentation for your chosen piece, speak with Theta & Co. before ordering.
Made to order. Estimated production is approximately two weeks for made-to-order pieces, plus delivery time. For a proposal, wedding or other special date, please contact us before purchasing.
Shipping & delivery | Returns & cancellations
Bespoke and personalised pieces have different cancellation conditions. Please review the policy before ordering.
Metal: 18k gold.
Your Theta & Co. experience
Secure checkout. Complete your purchase on our website, with your payment handled by our payment providers.
Personal guidance. For help with gemstones, ring sizing or the documentation for your chosen piece, speak with Theta & Co. before ordering.
Made to order. Estimated production is approximately two weeks for made-to-order pieces, plus delivery time. For a proposal, wedding or other special date, please contact us before purchasing.
Shipping & delivery | Returns & cancellations
Bespoke and personalised pieces have different cancellation conditions. Please review the policy before ordering.
Distinguished Artistry
For decades, our atelier has been devoted to the art of fine jewelry, working with carefully selected, ethically sourced gemstones and time honored goldsmithing techniques.
Each piece is shaped through a meticulous balance of tradition and innovation, combining the precision of modern technology with the sensitivity and expertise of the human hand.
The result is jewelry defined by exceptional craftsmanship, remarkable accuracy and an enduring sense of beauty.
Every detail is considered.
Every stone is chosen with intention.
Every piece is created to be treasured for generations.
From Stone to Story
