Design Intent
Grown by us. Cut by us. Unmistakably DIAMONDBOI.
Rooted in Portuguese heritage and brought to life through our own diamond growing and cutting process, the Portuguese Cut Oval is a personal expression of our craft. We grow each lab diamond ourselves, then carefully cut it to reveal the intricate faceting and distinctive character that define this stone.
Its elongated silhouette draws the eye, while a captivating pattern of reflections invites a closer look. Every turn reveals another detail—a diamond you can keep discovering.
Set on a delicate 1.80 mm tube shank, the centre diamond takes the spotlight. Our signature reverse halo adds a discreet layer of brilliance beneath the stone, creating a beautiful contrast between the simplicity of the band and the detail of the setting.
A celebration of our roots. A reflection of the work behind every facet.
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Signature Details
• Reverse halo
• 1.80MM Tube Shank
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Centre Diamond
• Portuguese Cut Oval cut lab-grown diamond
• Available from 1.00ct – 7.00ct
• D–E colour, VVS2/VS1 clarity, IGI certified
• Selected for excellent cut and exceptional brilliance
This setting is designed to work seamlessly with multiple diamond shapes. Select your preferred shape from the swatches — each ring is custom made to ensure the stone and setting complement each other beautifully.
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Craft & Customization
• Handcrafted to order in 14KT and 18KT White, Yellow, or Rose Gold
• 18KT Two-Tone (White Gold head / Yellow Gold shank) available
• Platinum available upon request
• Ring sizes available in ¼ and ½ increments
• In-between carat sizes and larger centre stones available upon request
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Production Time
Each Portuguese Cut Oval ring is custom made, beginning with the diamond itself. Please allow 3–4 weeks for growing, cutting, and certification, followed by an additional 3–4 weeks to handcraft your ring.
The total estimated timeframe is 6–8 weeks before shipping.
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.
Jewellery is personal — and tastes evolve.
That’s why Diamondboi offers a lifetime upgrade promise on both lab and natural diamonds.
• Upgrade your diamond at any time
• Receive full credit for what you originally paid
• Simply pay the difference toward your new piece
• No pressure. No loss of value
We believe your diamond should grow with you.
This upgrade policy applies to diamond engagement ring purchases.
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.
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