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【Ornate Diamond-Set Platinum-Alloy Clasp】 【Dia 2.22ct Inscription / White Lip Hanadama Pearl Necklace】
An elaborate floral-inspired clasp is a highlight of this necklace, featuring diamonds in different shapes, including marquise-shaped and rectangular stones.
The clasp bears a “Dia 2.22ct” inscription, also noted in the accompanying report from Shinju Sogo Kenkyusho.
The necklace features substantial 11.316.2 mm cultured white-lipped pearl oyster pearls. The report recognizes them as “White Lip Hanadama.”
A striking combination of large pearls and a richly decorated clasp.
Bidding starts at JPY 1.
■Diamond-Set Clasp
Diamond-set platinum clasps are also featured in exclusive collections offered by specialist pearl retailers.
The clasp on this necklace is a decorative feature in its own right, with an estimated clasp-section weight of approximately 11 g.
The 2.22ct figure is the total diamond weight indicated by the inscription, not the weight of a single diamond. The estimated clasp weight includes stones and other components; it is not the net weight of platinum alone. The reference to specialist collections concerns the type of clasp, not this item’s brand, maker, or equivalence in quality.
■White Lip Hanadama Designation
“White Lip Hanadama” is a quality designation used by Shinju Sogo Kenkyusho for white-lipped pearl oyster pearls considered to be of the finest quality under its own assessment standards.
It reflects a quality evaluation in addition to pearl identification.
This designation is specific to the laboratory. It is not a universal grade shared by all laboratories and does not, by itself, mean that the pearls are flawless or untreated.
■Pearl Report Included
The report was issued by 株式会社 真珠総合研究所 (Shinju Sogo Kenkyusho), a Japanese laboratory specializing in pearl examination.
The laboratory celebrated its 25th anniversary in 2023 and combines visual examination with scientific instruments.
The seller personally submitted this necklace for examination. The corresponding report is included.
■X-Ray Fluorescence Analysis Completed
The clasp has undergone XRF analysis. The instrument displayed the following readings at the tested location:
Please refer to the photograph of the analysis screen.
These readings apply to the tested location and do not guarantee uniform composition throughout the clasp or its interior. They are not a certification of Pt900 or another specific fineness.
XRF examines metal composition; it does not determine whether the diamonds are natural or laboratory-grown, nor does it grade their quality.
■Details
Item: Cultured white-lipped pearl oyster pearl necklace Report designation: White Lip Hanadama Pearl sizes: 11.316.2 mm, as stated in the report Total weight: Approximately 117.76 g, including pearls and clasp Clasp material: Platinum-based alloy; see XRF readings above Clasp inscription: Dia 2.22ct Estimated clasp-section weight: Approximately 11 g, including stones and other components Testing: Clasp XRF analysis completed Included: Pearl report issued by Shinju Sogo Kenkyusho
Weights are reference measurements.
■Condition and Notes
Pre-owned. Please enlarge and review the photographs for pearl surfaces, clasp details, scratches, and other signs of wear.
Actual color and luster may vary depending on lighting and screen settings.
Please review the pearl report, weighing photographs, and XRF screen image. Ask any questions before bidding.