Gemstones
Maris Oval Blue Lab Diamond Floral Halo Ring
$2,820
The Lucent can be customized with a different oval lab-grown diamond size or specification. For personal stone selection or CAD adjustments, start from our custom jewelry service . Its oval center stone, hidden halo, cathedral setting, and pave band are designed for a refined lab-grown diamond engagement ring style with everyday wear in mind. Available metal options may vary by order. Each stone is a laboratory-grown diamond, chemically, physically and optically identical to a mined diamond, selected for brightness and well-matched colour. The ring is handcrafted to order in solid gold by our partner atelier, then hand-polished and inspected before it leaves the workshop. Metal colour, size and stone details can be tailored on request before production. Every Riakoob piece arrives with a certificate of authenticity, insured delivery, and our 12-month value promise.
- Diamond origin
- Laboratory-grown
- Strict quality control (qc)
- Before dispatch, your custom-crafted ring undergoes rigorous multi-point inspection under gemological microscopes to verify prong security, setting alignment, and surface finishing.
- Global insured shipping
- We ship worldwide using premium express couriers (such as FedEx or DHL). Every parcel is fully insured for its replacement value and requires a mandatory adult signature upon arrival.
- Delivery timeline
- Because each piece is custom-forged to order by our artisans, production typically takes 1-2 weeks followed 1-2 weeks for express global delivery. Your dream ring will be on your finger in approximately 3-4 weeks.
- Center stone sizes
- Made-to-order and fully customizable from 1 carat up to 10+ carats to fit your preference and budget.
- Premium metals
- Select from 14K White/Yellow/Rose Gold, 18K White/Yellow/Rose Gold, or Platinum (PT950).
- Bespoke consultation
- Ready to select your perfect diamond? Click “Chat via WhatsApp” to speak directly with our concierge team for custom CAD adjustments and real-time stone selection.
- Custom-cut stones
- 2 business days for production, plus 1-2 weeks for international delivery.
- 100% real diamonds
- Cultivated using cutting-edge technology that mirrors the earth’s natural creation, lab-grown diamonds share the exact same physical, chemical, and optical properties as mined diamonds. They are real diamonds, down to the atom.
- Unparalleled value
- By eliminating heavy mining supply chains, lab diamonds offer up to 70% better pricing. This allows you to invest your budget into spectacular carat sizes, pure colors, and exceptional clarity grades that would otherwise be out of reach.
- Certificate
- Certificate of authenticity included
- Production
- Made to order; timing confirmed after purchase
- ◆ Certificate of authenticity
- ◆ Fully insured delivery
- ◆ 12-month value promise — or your money back
- ◆ White-glove delivery & installation








