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Introduction Section
Calibrated Lab-Grown Diamonds for Consistent Quality & Mass Production Needs
At Zen Diamonds, we supply premium calibrated lab-grown diamonds meticulously sorted and measured to exact size tolerances — ideal for jewellery manufacturers in Hong Kong, Thailand, Singapore, Malaysia, Vietnam, and Australia.
Our calibrated stones ensure uniformity, precision, and high polish, making them perfect for:
- Tennis bracelets
- Eternity rings
- Halo settings
- Micro-pavé work
- High-volume jewellery production
Whether you need small melee diamonds or larger matched pairs, we deliver precision-calibrated stones ready for manufacturing.
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Why Choose Zen Diamonds for Calibrated Lab-Grown Diamonds?
Perfect Consistency for Every Jewellery Design
Our calibrated diamonds undergo advanced sorting using laser measurement technology to ensure:
- Exact size tolerances (±0.01–0.02 mm)
- Matching brilliance and fire
- Uniform girdle thickness
- Superior symmetry and polish
- Zero colour variation within each batch
For manufacturers across Asia-Pacific, this consistency saves time, improves finishing quality, and increases production efficiency.
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Available Calibrated Diamond Options
Shapes
- Round Brilliant
- Princess
- Pear
- Marquise
- Oval
- Cushion
- Cushion
- 0.80 mm to 3.50 mm
(melee + small stones)
Custom calibration available for production orders
Size Range
- Colour:
DEF / GH
- Clarity:
VVS – VS – SI (sorted per batch)
- Cut Grades:
Excellent–Very Good (depending on size)
Colour & Clarity Range
- Per-carat lots
- Per-specified quantity
- Per project requirement
Batch-Based Sorting
We provide calibrated stones in:
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Benefits of Using Calibrated Lab-Grown Diamonds
For Jewellery Manufacturers & Wholesalers
- Faster setting and production
- Lower rejection rate
- High uniformity → premium finishing
- Sustainable, conflict-free diamonds
- Cost-effective for large-scale manufacturing
- Perfect for export-quality jewellery
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Applications of Calibrated Diamonds
Our precision-cut calibrated diamonds are widely used across Hong Kong, Singapore and Australian jewellery markets for:
- Engagement rings
- Full/half eternity bands
- Tennis bracelets & necklaces
- Designer pavé collections
- Custom manufacturing
- Bridal jewellery
- High-end micro-setting designs
calibrated layout diamond FAQs
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