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.
new products
新着商品
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18K Near Colorless Diamond Radiant-cut Pendant Necklace - 1.192ct
Regular price ¥410,000 (Tax incl.)Unit price perNEW -
18K Colorless Diamond Cushion-cut Pendant Necklace - 1.04ct
Regular price ¥350,000 (Tax incl.)Unit price perNEW -
18K Colorless Diamond Earrings Emerald Cut - 0.83ct
Regular price ¥380,000 (Tax incl.)Unit price perNEW -
Round-Cut Diamond Eternity Ring - 1.16ct
Regular price ¥370,000 (Tax incl.)Unit price perNEW
rings
リング
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PT1000 Round-cut Colorless Diamond Ring - 0.506ct
Regular price ¥125,000 (Tax incl.)Unit price perSold out -
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 ¥500,000 (Tax incl.)Unit price per
necklaces
ネックレス
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Flower Design Diamond Pendant Necklace - 0.58ct
Regular price ¥225,000 (Tax incl.)Unit price perSold out -
Heart-Shaped 3 Stones Cluster Diamond Pendant Necklace - 2ct
Regular price ¥990,000 (Tax incl.)Unit price per -
Mael Oval Fancy Yellow Diamond Pendant Necklace - 0.625ct
Regular price ¥220,000 (Tax incl.)Unit price per -
Mael Old European Fancy Green Yellow Diamond Pendant Necklace - 0.487ct
Regular price ¥170,000 (Tax incl.)Unit price perSold out
bracelets
ブレスレット
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Customizable Diamond Bracelet 16cm
Regular price ¥377,000 (Tax incl.)Unit price per -
Diamond Tennis Bracelet - 3.04ct
Regular price ¥550,000 (Tax incl.)Unit price per -
Diamond - Sapphire CVD Tennis Bracelet - 5.94ct
Regular price ¥440,000 (Tax incl.)Unit price per -
Diamond - Ruby CVD Tennis Bracelet - 6.37ct
Regular price ¥340,000 (Tax incl.)Unit price per
earrings
イヤリング
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18K Colorless Round Diamond Earrings - 1.092ct
Regular price ¥350,000 (Tax incl.)Unit price perNEW -
Round Diamond Earrings - 0.731ct
Regular price ¥200,000 (Tax incl.)Unit price per -
18K White Gold Natural Diamond Halo Earrings Adjustable Design - 1.16ct
Regular price ¥325,000 (Tax incl.)Unit price perSold out -
Mael Cushion Fancy Yellow Diamond Earrings - 0.99ct
Regular price ¥460,000 (Tax incl.)Unit price per
diamonds
ダイヤモンド
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Natural Loose Diamond 0.906ct Colorless D Oval
Regular price ¥598,000 (Tax incl.)Unit price perSold out -
Natural Loose Diamond 0.558ct Fancy Deep Brownish Yellow Oval
Contact us for price inquiry.
Sold out -
Natural Loose Diamond 0.542ct Very Light Purplish Pink Oval
Contact us for price inquiry.
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Natural Loose Diamond 2.568ct Fancy Intense Orangy Yellow Oval
Contact us for price inquiry.
Sold out
reviews
お客様の声
Gildo Aleshinsky
July 12th, 2024
★★★★★
We found Weiss on Instagram and followed to their website. We were interested to see a specific item but when we came to their studio we saw such an amazing collection of diamonds that we decided to go with a custom design. Their designer gave us a sketch and we made an amazing pendant! Thank you so much for making a dream come true!
Guy Landau
July 8th, 2024
★★★★★
Excellent service and great price. We've chosen the perfect diamonds from their large inventory to fit our jewelry (ring). Highly recommend, we'll definitely come back.
Trade 303
June 15th 2024
★★★★★
My fiancé and I visited Weiss Co in Japan for an engagement ring on our last day. Adi and his team were incredibly helpful and provided exceptional service, even as their day was ending. We found a perfect ring and plan to return for our wedding bands. The quality and attention to budget were impressive. Thank you, Adi! 5/5 service.
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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.
