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UID:2009165e0fe806543cc7cdeff0651ae9
DTSTAMP:20260413T033132Z
SUMMARY:ren-boivin-bague-tanzanite-diamants-de-couleur-et-diamants-dcale - 
 Date de vente : 17/12/2025
DESCRIPTION:Nom du lots : RENÉ BOIVIN BAGUE TANZANITE\, DIAMANTS DE COULEU
 R ET DIAMANTS ’DÉCALÉE’\n\nOval-shaped tanzanite\, round coloured di
 amonds and diamonds\, French assay mark for 18K yellow gold (750‰)\, sig
 ned René Boivin\, French maker’s mark (Société René Boivin)\, 1977\,
  René Boivin fitted case \nMaison René Boivin\, 2025: Certificate of Aut
 henticity n°202512YRD\, original piece manufactured by René Boivin in No
 vember 1977 after a drawing by Marie-Caroline de Brosses \nGem Paris\, 202
 5\, report n°202419788470-3: tanzanite\, tanzanites are commonly modified
  by use of thermal process \nTanzanite: for an approximate weight of 3.00-
 3.40 carats \nColoured diamonds: for an approximate total weight of 1.50-1
 .70 carat \nDiamonds: for an approximate total weight of 0.30-0.50 carat \
 nSize/Dimensions: EU ring size 50¹⁄₂/ US ring size 5¹⁄₄ \nGross 
 weight: 12.54 grams \nPlease note that coloured diamonds have not been tes
 ted for natural colour.
DTSTART;VALUE=DATE:20251217
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