Spinelle Cobalt Bleu naturel non chauffé 4.00 ct – Blue Cobalt Spinel - vue 1
Natural unheated blue cobalt spinel 4.00 ct – Tanzania
Spinelle Cobalt Bleu naturel non chauffé 4.00 ct – Blue Cobalt Spinel - vue 2
Spinelle Cobalt Bleu naturel non chauffé 4.00 ct – Blue Cobalt Spinel - vue 3
Spinelle Cobalt Bleu naturel non chauffé 4.00 ct – Blue Cobalt Spinel - vue 4
Spinelle Cobalt Bleu naturel non chauffé 4.00 ct – Blue Cobalt Spinel - vue 1
Natural unheated blue cobalt spinel 4.00 ct – Tanzania
Spinelle Cobalt Bleu naturel non chauffé 4.00 ct – Blue Cobalt Spinel - vue 2
Spinelle Cobalt Bleu naturel non chauffé 4.00 ct – Blue Cobalt Spinel - vue 3
Spinelle Cobalt Bleu naturel non chauffé 4.00 ct – Blue Cobalt Spinel - vue 4

Natural unheated blue cobalt spinel 4.00 ct – Tanzania

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Natural unheated blue cobalt spinel – 4.00 carats

Natural blue cobalt spinel of 4.00 ct, deep blue in colour, ideal for a ring or a bespoke jewellery piece.

  • Gemmological report: AAP83356 (28/04/2026)
  • Species: natural spinel
  • Trade name: blue cobalt spinel
  • Colour: blue (daylight)
  • Shape: cushion
  • Measurements: 10.19 × 9.17 × 5.17 mm
  • Crown cut: double brilliant
  • Pavilion cut: step (4)
  • Comments: no heat / no treatment
  • Origin: Tanzania

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