Japan’s Leading Lab-Grown Diamond Jewelry Brand.
Fine Luxury, Trusted Since 2012 – From Branded boutique to MadisonAve Diamond
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MadisonAve Diamond | IGI-Certified Lab-Grown Diamonds & Engagement Rings | Jewelry
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MadisonAVE Diamond
Rated 5.0 on BUYMA
with more than 1,300 genuine reviews, we strictly reject fake endorsements. See details on MadisonAve BUYMA page.
30-Day Unconditional Return Policy
All loose diamonds enjoy a 30-day unconditional return policy. Returns are accepted within 30 days of delivery with no reason required, no handling fees, and no mandatory conditions.
Worldwide Shipping Available
Enjoy free and fully insured delivery to the United States, Japan, Taiwan, Singapore, Australia, Hong Kong, and many other regions—quick, safe, and reliable.
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