


Calista Heart Solitaire Ring
Be enthralled by this subtle yet delicate design which represents class and femininity. The centre stone is carefully hand crafted to the perfect shape of a heart. A micro pavé band enhances the Calista, adding a touch of both elegance and sophistication.
Specifications: The size of a 2CT and 3CT equivalent heart centre stone measures at 8mm and 9.5mm respectively. Width of band is 1.8mm and 1.9mm respectively.
All our diamond simulant jewellery are crafted from 2 types of precious metals:
- Premium 925 sterling silver with 3 microns of 18k gold plating (gold vermeil), or
- Solid 14k/18k gold
(You may select your preferred metal in the dropdown below.)
Our products are 100% nickel-free and hypoallergenic.
As with all fine jewellery, your Éclat by Oui piece deserves proper care. To preserve its lustre, avoid contact with harsh chemicals such as lotion, chlorine, and perfume.
Clean it weekly by soaking in lukewarm water with mild dish soap for 5 minutes, then gently scrub with a soft-bristle brush.
- Singapore orders: approximately 3-4 weeks
- International orders: approximately 4-5 weeks
Ring resizing is offered in US 0.5 increments, for up to ± US 1 size within our available range.
We offer one-time complimentary resizing if the item is returned within 14 days of receipt.
- After 14 days, $55 resizing fee applies
- Takes around 3–4 weeks
To request a resize, please email us.
T&Cs apply.
If your size is not available for selection, email us your customised ring size in US 0.5 increments.
Customised items are not eligible for one-time complimentary resizing, returns, or exchanges.
T&Cs apply.
We are obsessed.
We are obsessed in delivering unrivalled quality to you. Our team devotes each piece to exquisite craftsmanship and impeccable quality.
Our stones are precision cut and polished to resemble the brilliance and fire of a natural, fine diamond. Every stone has been meticulously handcrafted to reveal its captivating, kaleidoscopic brilliance.


