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Cassiopeia Solitaire
The Cassiopeia Engagement Ring by Kate Ellen
The Cassiopeia Engagement Ring by Kate Ellen
The Cassiopeia Engagement Ring by Kate Ellen
The Cassiopeia Engagement Ring by Kate Ellen
The Cassiopeia Engagement Ring by Kate Ellen
The Cassiopeia Solitaire by Kate Ellen
Cassiopeia Solitaire

Cassiopeia Solitaire





A modern take on the diamond solitaire


The Ring


Round and structural bezel frames an antique Old European Diamond dating to circa 1850-1920, standard availability in .50CT through 1.25CT.

Measurements 1.6 mm Band

Signature Design 14k yellow gold with signature distressed matte finish with round simple bezel. 

Turn Around In stock sizes ship in 1 business day; made-to-order sizes and bespoke options ship in 3-5 weeks.


The Diamond


Certificate GIA Certified

Cut Old European Cut Antique (circa 1850-1920), post consumer recycled certified. Old European stones are know for large flowery facets that create excited pops of light in addition to shimmer.They are rare, unique and the most ethical and sustainable on the market.

Carat .50CT - 1.25CT standard. Larger sizes require consultation.

Color Choose your tier range

Good KLM color
Better HIJ color
Best EFG color

Clarity Eye Clean 

To dig a little deeper into how we procure our stones, metal and our sustainability and ethical sourcing jewelry philosophy, please visit our Sustainability information page.


Bespoke Options


Bespoke rings are made-to-order by modifying Kate Ellen's Vow Collection designs. Classic made-to-order options are selected when placing into your bag; Luxe options begin by working with a style-associate to explore tailoring the ring to your exact specifications prior to being crafted.

Luxe Bespoke

Pavé accent stones
Diamond shape/ size / color
Color gemstone
Band shape { knife-edge, round, flat, tapered }
Band width
Other little touches

Please contact us to begin designing your Luxe Bespoke ring; if you are local or visiting Oakland you can also pop by the store anytime to chat options and prices.


Choosing A Size


Size Available in size 3-10; full, half and quarter sizes

Resizing One free resizing within 90 days; takes 1-7 days.

Fine Print Rings ordered in wrong size requiring full rebuilds will incur a fee. We greatly appreciate giving us the correct ring size with your initial order.

Assistance If you need size advice, please Contact Us. Happy to give tips and recommendations for this style.