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【Total Retail Value Approx. ¥180 Million】Two Large-Carat Tiffany Diamond Rings Arrive at Haruyoshi Ginza Central Avenue Store

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Published Jul 15, 2026 11:16 PM ・ Updated Jul 15, 2026 4:39 PM ・ 11 min read ・ Source: PR TIMES

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【Total Retail Value Approx. ¥180 Million】Two Large-Carat Tiffany Diamond Rings Arrive at Haruyoshi Ginza Central Avenue Store — Image: PR TIMES

⚡ Key Points

Haruyoshi Group has received two large-carat diamond rings from Tiffany & Co.
at its flagship 'Haruyoshi Ginza Central Avenue Store'.
With a combined retail value of approximately ¥181 million, both items are authentic and come with authenticity guarantees, offering a rare opportunity to view such high-value pieces in person.

Haruyoshi Group has received two large-carat diamond rings from Tiffany & Co. at its flagship 'Haruyoshi Ginza Central Avenue Store'. With a combined retail value of approximately ¥181 million, both items are authentic and come with authenticity guarantees, offering a rare opportunity to view such high-value pieces in person.

PRIMARY SOURCE Original source: https://prtimes.jp/main/html/rd/p/000000009.000184560.html Distributor: PR TIMES
Published: Jul 15, 2026

Haruyoshi Group Co., Ltd. (Head Office: Azabu, Minato-ku, Tokyo; President & CEO: Toru Yoshizawa), a company specializing in the resale of luxury watches and high-end brand jewelry, has received two large-carat diamond rings from Tiffany & Co. at its flagship store 'Haruyoshi Ginza Central Avenue Store' (8-8-9 Ginza, Chuo-ku, Tokyo), which has recently launched in-store sales of high-end brand jewelry.

The combined retail value of the two rings is approximately ¥181 million. Diamonds exceeding 5 carats are extremely rare in Japan’s secondary market, making this a valuable opportunity to physically examine such pieces in-store. Both items are offered with official authenticity and genuineness guarantees.

Introduction of New Arrivals

1. Tiffany & Co. Diamond Ring – Cushion Cut, 6.12ct

Brand: Tiffany & Co.

Item: Diamond Ring

Cut: Cushion Cut / Round Brilliant Cut

Carat: 6.12ct

Estimated Retail Price: Approximately ¥95 million

Selling Price: ASK (Please inquire)

The cushion cut is characterized by its softly rounded square shape and gentle brilliance. A size exceeding 6 carats represents an exclusive tier of products offered only to a select few customers at Tiffany & Co.

2. Tiffany & Co. Diamond Ring – Emerald Cut, 5.75ct

Brand: Tiffany & Co.

Item: Diamond Ring

Cut: Emerald Cut

Carat: 5.75ct

Estimated Retail Price: Approximately ¥86 million

Selling Price: ASK (Please inquire)

The emerald cut is prized for its serene, transparent brilliance created by step-cut facets. This cut demands exceptional clarity, and combined with its large 5.75ct size, this piece stands out for its strong asset value.

※ Selling prices available upon inquiry at the store or by phone (03-5797-8283). ※ Each item is unique and will be discontinued upon sale.

Why Ginza? And Why Now?

Following the growth of the luxury watch resale market, the secondary market for high-end brand jewelry is now expanding. Large-carat diamonds are increasingly sought after as tangible assets that retain global value. However, opportunities to physically handle high-carat pieces—often subject to long wait times and purchase history requirements at official boutiques—are extremely limited.

Haruyoshi Group has achieved cumulative sales of ¥235.6 billion over three fiscal periods in the luxury watch resale sector. Leveraging its expertise in appraisal and authenticity verification honed through watches, the company launched 'Haruyoshi Ginza Central Avenue Store' on June 16, 2026, offering Harry Winston, Graff, Tiffany & Co., Bvlgari, and Cartier—all with full authenticity and genuineness guarantees. These two large-carat diamond rings represent flagship products symbolizing this commitment.

Strengthening High-End Jewelry Buyback Services

Alongside sales, Haruyoshi Ginza Central Avenue Store is enhancing its high-end jewelry buyback services. Free in-store appraisals by specialist appraisers are available, with high-value offers for large-carat diamonds and rare gemstones. Customers wishing to assess the asset value of jewelry stored at home are welcome to visit.

Buyback Website: https://haruyoshi-official.jp/

CEO Statement

"Through watches, we have consistently upheld our principle of 'authenticity at the right value.' These two pieces embody that same philosophy in jewelry. At this Ginza store, experience world-class diamonds with full authenticity and genuineness guarantees. We invite you to discover a lifetime treasure in person."

Toru Yoshizawa, President & CEO, Haruyoshi Group Co., Ltd.

Store Information | Haruyoshi Ginza Central Avenue Store

Store Name

Haruyoshi Ginza Central Avenue Store

Address

8-8-9 Ginza, Chuo-ku, Tokyo 104-0061, 1F-2F (along Ginza Central Avenue)

Opening Date

Tuesday, June 16, 2026

Products Handled

Luxury watches, brand goods (bags, jewelry, etc.) – sales and buyback

Access

5-minute walk from Tokyo Metro Ginza Station / 3-minute walk from JR Shimbashi Station

Business Hours

11:00–20:00

Phone Number

03-5797-8283 (Direct line to Haruyoshi)

Company Overview

Corporate Name: Haruyoshi Group Co., Ltd.

Representative: President & CEO Toru Yoshizawa

Established: February 2021

Capital: ¥50,000,000

Tokyo Head Office: VORT Azabu Maxim 6FA, 1-28-12 Azabu, Minato-ku, Tokyo 106-0044

Osaka Branch: Namba Skyo 27F, 5-1-60 Namba, Chuo-ku, Osaka 542-0076

Haruyoshi Ginza Central Avenue Store: 8-8-9 Ginza, Chuo-ku, Tokyo 104-0061, 1F-2F (along Ginza Central Avenue)

HaruyoshiStore Ginza: G・O・WEST 1F-2F, 6-4-7 Ginza, Chuo-ku, Tokyo 104-0061

(Business Hours: 10:30–19:30 / TEL: 03-5962-8892)

Business Activities: Buyback, wholesale, and retail (resale business) of luxury watches, Hermès bags, high-end brand jewelry, etc.

Head Office Address: VORT Azabu Maxim 6th Floor A, 1-28-12 Azabu, Minato-ku, Tokyo

Secondhand Goods License: Tokyo Metropolitan Public Safety Commission, License No. 301092217028

Corporate Website: https://haruyoshi.co.jp

Sales Website: https://shop.haruyoshi-official.jp/

Buyback Website: https://haruyoshi-official.jp/

FACT BOX

Source: PR TIMES
Category: New Product
Organizations: Tiffany & Co.

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Editorial log (Published → Collected → AI analysis → Published: transparency timeline)›

Announced　Jul 15, 2026 11:16 PM — Distributor PR TIMES
Collected　Jul 15, 2026 2:37 PM
AI structured & analyzed　Jul 15, 2026 4:39 PM
Desk-reviewed & published　Jul 15, 2026 11:16 PM

FAQ

What are the features of the Tiffany rings sold at Haruyoshi Ginza Central Avenue Store?

Cushion cut 6.12ct and emerald cut 5.75ct, total retail value approx. ¥180 million. Authenticity guaranteed, available for in-person viewing.

Can I purchase these diamond rings?

Yes, inquire in-store or by phone for pricing. Each is a one-of-a-kind item, sold on a first-come basis.

What are the features of Haruyoshi Group's jewelry buyback service?

Free appraisal by expert gemologists. High-value offers for large diamonds and rare stones. Same-day service at Ginza store.

What are the business hours and nearest stations for the Ginza Central Avenue store?

Open 11:00–20:00. 5-min walk from Tokyo Metro Ginza Station, 3-min walk from JR Shimbashi Station.

Why are high-carat diamonds gaining attention?

They are stable tangible assets globally. Rare to find such high-value pieces available for in-person inspection.

Cite this article — HOW TO CITE

Washin AI News Desk“【Total Retail Value Approx. ¥180 Million】Two Large-Carat Tiffany Diamond Rings Arrive at Haruyoshi Ginza Central Avenue Store”AI News by Washin Village（和心村）, Jul 15, 2026. https://aeo.idaeo.ai/ai/%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE%E9%99%BD%E5%90%89%E3%82%B0%E3%83%AB%E3%83%BC%E3%83%97/en/news/2026-07-15-%E5%AE%9A%E4%BE%A1%E7%B7%8F%E9%A1%8D-%E7%B4%841-8%E5%84%84%E5%86%86-%E3%83%86%E3%82%A3%E3%83%95%E3%82%A1%E3%83%8B%E3%83%BC%E3%81%AE%E5%A4%A7%E7%B2%92%E3%83%80%E3%82%A4%E3%83%A4%E3%83%A2%E3%83%B3%E3%83%89%E3%83%AA%E3%83%B3%E3%82%B02%E7%82%B9%E3%81%8C-%E9%99%BD%E5%90%89-%E9%8A%80%E5%BA%A7%E4%B8%AD

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