The Cosset is a unique London blue topaz engagement ring with a vibrant citrine stone crown accent. The radiant topaz showcases an array of colors, giving this one-of-a-kind engagement ring a dazzling look.
The Cosset
- Shoulder Width: 1.8
- Shank Base Width: 2.35
- Shank Base Thickness: 1.7
- Ring Fit: Standard
- Primary Stone Shape: Round Brilliant
- Top Dimensions: 12.02 mm
- Primary Stone Count: 1
- Stone Size: 6.5 mm
- Setting Style: Bezel
- Hidden Halo: No
- Accent Stones: Yes
We will ship you a Free Ring Sizing Kit 1-2 business days after you place an order when you select "Send Ring Sizer"
Your custom sizer(s) will arrive with instructions on how to use the sizer and how to update your ring size and width for your order when you’ve determined the best fit.
We will not start making your ring until your ring size has been added to your order.
Your ring will ship for free UPS 2-Day or according to the shipping method you select at checkout. Rings ship in discreet outer packaging with a lovely box and unboxing experience.
Certificates of authenticity are included for most stones.
RETURNS
Engagement rings can be returned or exchanged within 30 days of receipt, provided they are in original, unworn condition. Some exceptions apply. Read our full return policy here.
London Blue Topaz with Citrine Crown Accent
The Cosset pairs this stunning natural stone with a warm citrine crown accent that catches the eye and warms the blue. The bezel setting holds both stones securely and gives the ring a finished, intentional look that feels truly one of a kind. For the bride who doesn't want to wear what everyone else is wearing.
Make It Yours
Love this ring? Let’s make it perfect.
This design is a starting point. Swap the stone, change the metal, adjust the proportions — our designers work with you directly to create the ring she’ll never want to take off.
Amazing Ring! My husband loves it. This company did an amazing job on my engagement ring and wedding band as well. Great quality and beautiful! Also great customer service!
This ring is brand new — be one of the first to review it.
See All Reviews →Not sure?We'll help you get it right.
Free one-on-one consultation — in-person at our Huntersville studio or virtual from anywhere.

