Exceptional Diamonds

Dedicated to extraordinary stones of great size and rare beauty.

From Mine to Masterpiece

In the quest for unique gemstones, Taché plays a crucial role between the mining sector and the world of high jewellery.

With an approach based on tailor-made services and solutions, we are highly recognised as a partner of choice for large-scale projects, enabling us to create the finest diamonds for exceptional collections.

For larger stones, our in-house manufacturing in Antwerp focuses on diamonds of 3 carats and above, ensuring the same level of precision, craftsmanship, and traceability throughout the process.

Exceptional Diamond Specifications

A curated selection of GIA-certified white and fancy colour diamonds, celebrated for their rarity, provenance and beauty. Each stone is chosen for its superior quality, striking presence and uniqueness — the essence of high jewellery.

Ideal for statement pieces, extraordinary centre stones and the most prestigious high jewellery creations.

Certification – GIA with Origin (DOR)

All diamonds in this department are certified by the Gemological Institute of America (GIA), with many accompanied by Diamond Origin Reports (DOR).
These special reports trace the diamond from rough to polished, offering full transparency of origin, from the mine to the ultimate masterpiece.

Size Range & Shapes

From 3.00ct upwards, with some exceptional stones exceeding 20ct, 50ct and even 100ct.

This category features diamonds destined to be:

  • Centrepieces for one-of-a-kind jewels
  • Investment-grade stones
  • High-jewellery layouts requiring larger stones

 

A selection of premium shapes, each cut for maximum brilliance and individual character:

  • Round Brilliant
  • Pear
  • Cushion
  • Oval
  • Emerald
  • Square Emerald
  • Radiant
  • Heart
  • Marquise

Colour & Clarity Grading

Colourless Diamonds:
Graded from D to L, offering both colourless brilliance and warm classic tones.

Fancy Colour Diamonds:
From light hues to intense and vivid saturations, including a wide spectrum of natural colours such as yellow, pink, blue and more.

Clarity Grading – Each diamond is assessed for clarity with the highest standards in mind:

 

Grade Description
FL – IF Flawless to Internally Flawless
VVS1 – VVS2 Very Very Slightly Included
VS1 – VS2 Very Slightly Included
SI1 Slightly Included

Fluorescence Levels

None  Faint  Medium  Strong

Fluorescence is clearly noted on all GIA reports and considered during selection for aesthetic harmony and client preference.

Traceability & Ethics

Many diamonds in this department include a Diamond Origin Report, offering documented traceability from rough to polished.

All stones are responsibly sourced and fully compliant with international ethical standards.

Custom Sourcing & Layouts

Looking for a showstopping stone, matched pair or a layout of exceptional diamonds?

Our team specializes in tailored sourcing for bespoke creations.

From singular masterpieces to curated high-jewellery suites, we support you at every step.

Buy Your Exceptional Diamonds

Make use of our online platform to facilitate your purchase.

Exceptional Diamonds

Discover our online inventory.

Exceptional Diamonds come with Exceptional stories

Discover the transformation – from unearthed raw stone to mesmerizing tale.

Do you have any more questions or would you like to receive a quote?

Do not hesitate to contact us.