Oval Lab Diamond2mm Cigar Band with Reverse Halo

Design Intent

This design balances bold structure with refined brilliance. Diamondboi's reverse halo enhances the centre diamond with added depth and light, while the solid 2.00mm cigar band delivers a confident, modern foundation.

Strong, intentional, and timeless — this ring is designed for those who appreciate presence without excess.

Signature Details

• Diamondboi reverse halo, wrapping beneath the centre diamond to amplify brilliance and visual impact
• Solid 2.00mm cigar band for a bold, clean-lined silhouette
• Smooth, substantial profile designed for everyday wear and long-term durability
• Designed to sit beautifully on its own or paired with a wedding band

Centre Diamond

• Oval cut lab-grown diamond
• Available from 1.00ct – 7.00ct
• D–E colour, VVS2+ clarity, IGI certified
• Selected for exceptional brilliance, symmetry, and light return

This setting is designed to work seamlessly with multiple diamond shapes. Select your preferred shape from the swatches — every ring is custom made to ensure the stone and setting complement each other beautifully.

Craft & Customization

• Handcrafted to order in 18KT White, Yellow, or Rose Gold
• 18KT Two-Tone (White Gold head / Yellow Gold shank) available
• Platinum available upon request
• Ring sizes offered in ¼ and ½ increments for a precise fit
• In-between carat sizes and larger centre stones available upon request
• Final design details reviewed before production begins

Production Time

Each engagement ring is custom made to order in our Toronto studio. Please allow 4–6 weeks for production prior to shipping.

Explore more lab-grown diamond engagement rings, or complete the set with a women's lab diamond wedding band.

For over 20 years, Diamondboi has designed and handcrafted fine jewellery for clients who value quality, integrity, and timeless design.

Every piece is created with intention — balanced proportions, secure settings, and craftsmanship meant to last a lifetime.

Both are real diamonds with the same optical, chemical and physical properties. The difference is origin: a natural diamond formed in the earth over millions of years and carries a rarity premium; a lab-grown diamond is grown over weeks using technology and costs considerably less for the same size and grade.

Nobody can tell them apart by eye. The only visible differences are the laser inscription on the girdle and the number on the grading report. Every diamondboi lab-grown centre diamond is IGI-certified, D–E colour and VVS2 clarity or better, and chosen for cut performance first, because cut is what makes a diamond come alive. Our natural centre diamonds are GIA-certified, E–F colour and VS2 clarity or better.

Choose natural if the story of origin matters to you. Choose lab-grown for a larger or higher-grade diamond at the same budget. Either way, the ring is made the same way, in the same studio, with the same lifetime guarantee. Read the full guide →

1. Order confirmation and review
2. Design and sizing confirmation (if needed)
3. Crafting begins
4. Final inspection
5. Secure, fully insured delivery

All orders ship via trackable courier with signature required.
For high-value orders, our team may reach out to confirm details — this ensures everything is perfect and secure.