Yellow Sapphire - 3.05 ct - Gem research Swiss Lab (GRS) - セイロン、スリランカ





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Natural yellow sapphire, 3.05 ct, single stone, octagonal shape with a modified scissor cut, origin Sri Lanka and GRS-certified.
Description from the seller
Royal Antwerp Gem – 自然黄玉髪石 – 3.05 ct – スリランカ – GRS Swiss Lab 認証
⸻
DESCRIPTION
美しい自然黄玉髪石で、3.05 ct の重量、魅力的な黄色の色調と、修正スコアカットを用いた優雅なオクタゴン形状を特徴とします。
この宝石は、色石の識別と起源決定を専門とする国際的に認められたスイスの宝石学研究所であるGRS GemResearch Swisslab によって検査・認証されています。
GRSのレポートによれば、このサファイアはスリランカ産(セイロン)であるとされています。
レポートにはヒーティングの兆候(Hと表示)と記され、石はLIBS検査を受け、GRS によってカラー・スタビリティ・テスト(Type 3b)が適用されています。
3カラット超の重量、クラシックなスリランカ産、GRS認証を備えるこのサファイアは、上質なジュエリー作品(オーダーメイドのリングやペンダント)や宝石コレクションに適しています。
⸻
SPECIFICATIONS
Gemstone: Natural Yellow Sapphire
Mineral: Natural Corundum
Weight: 3.05 ct
Color: Yellow
Shape: Octagonal
Cut: Modified Scissor
Dimensions: 8.20 × 7.28 × 5.19 mm
Origin: Sri Lanka (Ceylon)
Treatment: H – indications of heating
Testing: LIBS-tested
Color Stability: Type 3b test applied
Laboratory: GRS GemResearch Swisslab
Report No.: GRS2026-097537
Report Date: 17 September 2026
⸻
SHIPPING
The gemstone will be shipped securely, fully insured and with international tracking.
Professional handling and careful packing are provided to ensure safe delivery.
⸻
PACKAGING
The gemstone will be carefully packed in a protective gemstone box/bag together with its original GRS GemResearch Swisslab report.
⸻
DEALER NOTE
PARAIBA – Fine Gemstones
We specialize in carefully selected natural colored gemstones, with a focus on quality, transparency and professional gemological certification.
Our gemstones are individually selected and, where appropriate, submitted to internationally recognized gemological laboratories for independent examination.
⸻
NOTES
Photographs are taken to represent the gemstone as accurately as possible. Actual colors may vary slightly depending on lighting conditions, camera settings and screen calibration.
Macro photography may make natural inclusions or surface characteristics appear more prominent than they are to the naked eye.
Please refer to the GRS report for the independent gemological identification, treatment information and origin determination.
Seller's Story
Royal Antwerp Gem – 自然黄玉髪石 – 3.05 ct – スリランカ – GRS Swiss Lab 認証
⸻
DESCRIPTION
美しい自然黄玉髪石で、3.05 ct の重量、魅力的な黄色の色調と、修正スコアカットを用いた優雅なオクタゴン形状を特徴とします。
この宝石は、色石の識別と起源決定を専門とする国際的に認められたスイスの宝石学研究所であるGRS GemResearch Swisslab によって検査・認証されています。
GRSのレポートによれば、このサファイアはスリランカ産(セイロン)であるとされています。
レポートにはヒーティングの兆候(Hと表示)と記され、石はLIBS検査を受け、GRS によってカラー・スタビリティ・テスト(Type 3b)が適用されています。
3カラット超の重量、クラシックなスリランカ産、GRS認証を備えるこのサファイアは、上質なジュエリー作品(オーダーメイドのリングやペンダント)や宝石コレクションに適しています。
⸻
SPECIFICATIONS
Gemstone: Natural Yellow Sapphire
Mineral: Natural Corundum
Weight: 3.05 ct
Color: Yellow
Shape: Octagonal
Cut: Modified Scissor
Dimensions: 8.20 × 7.28 × 5.19 mm
Origin: Sri Lanka (Ceylon)
Treatment: H – indications of heating
Testing: LIBS-tested
Color Stability: Type 3b test applied
Laboratory: GRS GemResearch Swisslab
Report No.: GRS2026-097537
Report Date: 17 September 2026
⸻
SHIPPING
The gemstone will be shipped securely, fully insured and with international tracking.
Professional handling and careful packing are provided to ensure safe delivery.
⸻
PACKAGING
The gemstone will be carefully packed in a protective gemstone box/bag together with its original GRS GemResearch Swisslab report.
⸻
DEALER NOTE
PARAIBA – Fine Gemstones
We specialize in carefully selected natural colored gemstones, with a focus on quality, transparency and professional gemological certification.
Our gemstones are individually selected and, where appropriate, submitted to internationally recognized gemological laboratories for independent examination.
⸻
NOTES
Photographs are taken to represent the gemstone as accurately as possible. Actual colors may vary slightly depending on lighting conditions, camera settings and screen calibration.
Macro photography may make natural inclusions or surface characteristics appear more prominent than they are to the naked eye.
Please refer to the GRS report for the independent gemological identification, treatment information and origin determination.
Seller's Story
Details
Disclaimer
Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.
Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.

