Celebrating "Good Stone Day" on November 14th
November 14th marks "Good Stone Day" in Japanβan opportunity to reflect on the value of gemstones. ECOSTYLE, managed by Standing Point Co., Ltd., based in Meguro, Tokyo, reinforces its gemstone buying initiatives to encourage the reuse culture surrounding these precious items.
At the ECOSTYLE Ginza flagship store, customers can receive complimentary assessments and favorable buying offers for popular gemstones including diamonds, sapphires, rubies, emeralds, and alexandrites. This initiative emphasizes the importance of passing down valuable gemstones, fostering a sustainable reuse culture.
The Significance of Good Stone Day
The concept of "Good Stone Day" derives from the phonetic harmony found in the Japanese language, where the numbers 11 (for 'good') and 14 (for 'stone') come together. Historically, this date has been celebrated to honor the connections between people and stones, emphasizing the beauty, value, and durability preserved within gemstones. It serves as a reminder to recognize the intrinsic worth of these natural treasures.
ECOSTYLE uses this occasion to advocate for the idea of entrusting cherished gemstones to their next keepers, promoting a sense of responsibility and connection.
What Qualifies a Stone as a "Good Stone"?
For a gemstone to be deemed a "good stone," it generally must meet three key criteria:
1.
Beauty: The stone should possess a harmonious combination of color, transparency, and brilliance.
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Rarity: A truly valuable gemstone is rare, with limited availability and no feasible substitutes.
3.
Durability: The stone must be strong enough for everyday use, typically rated seven or higher on the Mohs scale of hardness.
Only stones that embody these qualities are considered to have timeless value that can be cherished and passed down through generations.
Comparing Popular Gemstones and Their Market Values
Below is a comparative analysis of five popular gemstones frequently traded in the reuse market, along with their general resale values and characteristics:
| Gemstone | Key Features | Buyback Price (S Rank) | Rarity | Popularity | Market Value |
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| --- | ------------ | ------ | -- | -- | --- |
| π Diamond | Eternal brilliance; hardest material at Mohs 10 | Β₯18,488 (0.25ct) ο½ Β₯1,049,220 (1.50ct) | β
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| π Emerald | Stable bridal demand; vibrant green color | Β₯250,000 (1.0ct) ο½ Β₯7,000,000 (10.0ct) | β
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| β€οΈ Ruby | Unique natural inclusions; deep crimson shine | Β₯250,000 (1.0ct) ο½ Β₯6,000,000 (10.0ct) | β
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| π Sapphire | βPigeon bloodβ is exceptionally rare; symbol of loyalty | Β₯200,000 (1.0ct) ο½ Β₯4,000,000 (10.0ct) | β
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| π Emerald | Unique natural inclusions; vibrant green | Β₯250,000 (1.0ct) ο½ Β₯7,000,000 (10.0ct) | β
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*Note: Prices fluctuate based on market conditions such as commodity prices, supply and demand, and currency exchange rates.
Through these comparisons, it is evident that the value of gemstones is greatly influenced by their beauty, rarity, and condition. Recently, there has been a noticeable increase in inquiries regarding the assessment of unused jewelry and inherited stones, in line with the growing trend of ethical reuse.
Commitment to Gemstone Valuation at ECOSTYLE Ginza
At ECOSTYLE's Ginza flagship, certified gemologists with expertise from organizations like GIA evaluate the intrinsic values of gemstones. They provide:
- - In-person assessments at the Ginza store
- - Increased valuation for stones with certification and accompanying materials
- - No fees for cancellation or appraisal
- - Transparent pricing based on current market conditions
During the "Good Stone Day" festivities, ECOSTYLE is also holding promotional events that include special visit incentives and increased valuation opportunities, offering as much as Β₯20,000 more for gemstones assessed between November 1 and December 28.
The New Worth of Gemstones through Reuse
Gemstones are not just decorative items but assets that bridge time and people, transcending generations. Selling them is not simply about letting go; rather, it's about entrusting these treasures to a new owner. ECOSTYLE aims to promote a culture of reuse that resonates positively with the environment and humanity. Through initiatives that expand from Ginza, we aspire for "Good Stone Day" to become a day dedicated to transferring and inheriting value.
Company Overview
- - Name: Standing Point Co., Ltd.
- - CEO: Hiroshi Wakakusa
- - Location: Meguro, Tokyo
- - Business Focus: Fashion and gemstone reuse through ECOSTYLE
- - Stores: Ginza Flagship, Shinjuku, Shibuya, Hiroo, Jiyugaoka, Yokohama Motomachi, Hamamatsu Iino, Osaka Shinsaibashi, Kobe Sannomiya
Official website:
ECOSTYLE Jewelry Valuation