Custom Natural Diamond Jewelry & Fine Diamonds | Weiss Diamonds Tokyo
Weiss has been providing the highest quality natural diamonds to jewelry stores in Japan as a wholesaler for over 30 years.
We take pride in our extensive inventory, which features a wide range of fancy shapes, fancy colors, colorless diamonds, and round diamonds. Thanks to our rich selection and skilled craftsmen, we also offer custom-made jewelry tailored to perfectly fit our customers' desires.
newly arrived diamond jewelry
新入荷ダイヤモンドジュエリー
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PT900 Oval-cut Colorless Diamond Ring - 1.34ct
Regular price ¥860,000 (Tax incl.)Unit price perNEW -
Natural Diamond Tennis Bracelet DEF VS+ 1.64ct
Regular price ¥610,000 (Tax incl.)Unit price perNEW -
18KPG Diamond Earrings Flower-design 1.35ct
Regular price ¥340,000 (Tax incl.)Unit price perNEW -
18K Diamond Earrings Studs Round-cut 1.736ct
Regular price ¥980,000 (Tax incl.)Unit price perNEW
Diamond Rings
ダイヤモンドリング
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Round Near Colorless Diamond Ring - 0.983ct
Regular price ¥540,000 (Tax incl.)Unit price per -
Mael Radiant Light Yellow Diamond Ring - 0.68ct
Regular price ¥280,000 (Tax incl.)Unit price per -
Mael Cushion Very Light Pink Diamond Ring - 0.25ct
Regular price ¥600,000 (Tax incl.)Unit price per -
Oval Fancy Orangy Pink Diamond Ring - 0.705ct
Regular price ¥590,000 (Tax incl.)Unit price per
Diamond Necklaces
ダイヤモンドネックレス
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18K Round Diamond Pendant Necklace - 0.713ct
Regular price ¥350,000 (Tax incl.)Unit price perNEW -
18KYG Heart Pendant with Diamond – 0.08ct
Regular price ¥65,000 (Tax incl.)Unit price per -
18K Near Colorless Diamond Radiant-cut Pendant Necklace - 1.192ct
Regular price ¥440,000 (Tax incl.)Unit price per -
18K Colorless Diamond Cushion-cut Pendant Necklace - 1.04ct
Regular price ¥370,000 (Tax incl.)Unit price per
diamond bracelets
ダイヤモンドブレス
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Natural Diamond Tennis Bracelet DEF VS+ 1.64ct
Regular price ¥610,000 (Tax incl.)Unit price perNEW -
18K Natural Diamond Tennis Bracelet - 4.42ct
Regular price ¥1,100,000 (Tax incl.)Unit price perNEW -
18KYG Natural Diamond Tennis Bracelet - 4.53ct
Regular price ¥1,200,000 (Tax incl.)Unit price perNEW -
18K Diamond Natural Tennis Bracelet - 5.71ct
Regular price ¥1,300,000 (Tax incl.)Unit price perNEW
diamond earrings
ダイヤモンドイヤリング
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18K Near Colorless Diamond Earrings Emerald-cut - 2.02ct
Regular price ¥380,000 (Tax incl.)Unit price perNEW -
18K Diamond Earrings Round Cut - 0.54ct
Regular price ¥150,000 (Tax incl.)Unit price perNEW -
18KYG Near Colorless Round Diamond Earrings - 1.746ct
Regular price ¥590,000 (Tax incl.)Unit price perNEW -
18K Oval Blue Sapphire Diamond Earrings - 3.119ct
Regular price ¥320,000 (Tax incl.)Unit price per
loose diamonds
ダイヤモンドルース
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Natural Loose Diamond 0.542ct Very Light Purplish Pink Oval
Contact us for price inquiry.
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Natural Loose Diamond 0.62ct Colorless E Cushion
Regular price ¥260,000 (Tax incl.)Unit price per -
Natural Loose Diamond 1.006ct Near Colorless G Cushion
Regular price ¥780,000 (Tax incl.)Unit price per -
Natural Loose Diamond 1ct Near Colorless H Cushion
Regular price ¥570,000 (Tax incl.)Unit price per
jewelry
ジュエリー
diamonds
ダイヤモンドルース
reviews
お客様の声
L Ruin
November 4th, 2025
★★★★★
I bought a pink diamond ring online, which made me nervous at first. Yet it looked even more stunning in person and was much cheaper than I expected. The packaging was luxurious, and the setting was intricate, so the ring felt like a piece of art.Being able to find a high-quality pink diamond online, without visiting a store, was pure luck.
Donna L
October 21st, 2025
★★★★★
We easily found the perfect ring for a very reasonable price. we were ready to have to make another trip to Japan to pick up our ring in a few months time, but somehow Adi managed to get it ready for us to pick up during our trip! He was also very accommodating and allowed us to visit during a national holiday. Highly recommend him to anyone hunting for jewellery!
Lahiruni G
June 15th 2025
★★★★★
What a remarkable person is the CEO , customer service is on point, very kind and gentle, I bought my wedding ring with a center diamond, couldn’t be more happier. One of the best place for natural diamonds after searching all over Japan.
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Certified Diamonds
Choose from diamonds that come with authentic third-party certification from trusted laboratories.
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Custom Design
Create your unique jewelry piece at an unbeatable price.
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Lifetime Guarantee
Enjoy a lifetime guarantee on resizing, polishing, and coating by our experienced staff.
Get 100% trade-in value for a future upgrade.(The upgrade is at least double the original purchase (any discounts disqualify))
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Established Expertise
Over 50 years of experience serving clients worldwide, with a wide range of choices and budget-friendly diamond imports.
