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8.57克拉「喀什米爾」天然藍寶石、鑽石配鉑金戒指,藍寶石未經加熱處理

$340,000–500,000
Cushion-shaped mixed-cut sapphire, 8.57 cts.
Round brilliant-cut diamonds, total approximately 1.60 cts.
French maker's mark and assay mark
Platinum, size 5
附瑞士SSEF證書及Gübelin證書
Gübelin Report: Kashmir, no indications of heating (NTE), accompanied by a gemstone rating
SSEF Report: Kashmir, no indications of heating

Please note this lot is accompanied by Gübelin report copies and not the original reports.