The collection
12.98 ct grey tourmaline, cushion fine step cut, on a white tray
Photograph

12.98 ct, 14.16 × 13.18 × 9.91 mm, cushion fine step cut.

CWG1051 Grey tourmaline

12.98 ct Unusual Grey Tourmaline, Cushion Fine Step, Mozambique

An unusual grey tourmaline from Mozambique, 12.98 carats, loupe clean, cut as a cushion in a fine step.

$1,557.60$120 per carat 12.98 ct

Free express shipping worldwide Certification and shipping

Optional. An independent laboratory examines the stone before it ships. Sold on our full written disclosure either way.
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  • Natural
  • On request
  • Loupe clean (IF)
  • Mozambique
SKU
CWG1051
Variety
Grey tourmaline
Colour
Smoky grey with green flashes
Weight
12.98 ct
Dimensions
14.16 × 13.18 × 9.91 mm
Shape
Cushion
Cut
Fine step cut
Clarity
Loupe clean (IF)
Origin
Mozambique
Treatment
On request
ClarityIF
  1. IF
  2. VVS
  3. VS
  4. SI-1
  5. SI-2
  6. I
  7. TS
  8. O

This 12.98 ct grey tourmaline is graded IF. Internally flawless: loupe clean: no inclusions can be seen even under a 10x loupe.

The cut

Fine step cut

Top view
14.16 mm9.91
Side profile

A step cut with more, narrower rows of facets. The extra steps give the long, clean flashes of a step cut with a livelier, more layered glow, and they hold colour evenly across the stone.

  • More rows of narrower steps
  • Richer, layered flashes
  • Even colour from edge to edge
Enquire about CWG1051Opens WhatsApp to +66997975799 with this stone attached. Or email [email protected].

Grey is one of the rarest colours in tourmaline. This cushion is a calm, smoky grey that picks up green flashes as it moves, and the fine step cut keeps the colour even across the table.

Loupe clean. Ask us for treatment details.

Before it ships

Certification & shipping

Certification

Optional laboratory report

This 12.98 ct grey tourmaline is sold on our own written description, with full disclosure of treatment. If you would like an independent report, choose a laboratory in the certificate menu beside the price and we send the stone before it ships. It is optional, and the 14 day return stands either way.

  • GübelinGübelin Gem Labfrom $400
  • GRSGemResearch Swisslabfrom $120
  • GIAGemological Institute of Americafrom $90
  • BellerophonBellerophon Gemlabfrom $70
  • GuildGuild Gem Laboratoriesfrom $60
  • AIGAmerican International GemLab$15
  • GFCOGFCO Gemological Laboratory$15

AIG and GFCO are a fixed fee. Other laboratories start at the figure shown and depend on the report type. Reports describe the stone independently of us.

Shipping and returns

Free express shipping, worldwide

Shipping toCarrierTypical transitCost
ThailandExpress courier1–2 daysFree
United StatesFedEx or DHL Express2–4 daysFree
Europe and UKFedEx or DHL Express2–5 daysFree
Rest of the worldFedEx or DHL Express3–7 daysFree
  • In the boxThe stone in a gem box, an itemised invoice, and the lab report if you add one.
  • Returns14 days from delivery for a full refund, in its original condition. Return postage is paid by the buyer.
  • Voids a returnThe stone has been set, recut, altered or damaged.

Dispatched within 24 to 48 hours of payment, or once the lab report is back. Full detail in our shipping and returns policy.

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