A patented reverse auction platform where competing suppliers bid to fulfill wholesale diamond buying demands.
Reverse Auction is a patented diamond procurement system covered by US Patent 7792723B2 and operated by Liquid Diamonds. Buyer demands are sent simultaneously to hundreds of verified suppliers who bid in open competition, and a matching engine pairs demands with newly listed supplier inventory. Buyer details such as stone counts and target prices are concealed so suppliers submit their best available price.
The platform supports large-volume program orders without moving market prices, alongside just-in-time delivery scheduling and long-term supply contracts with diamond manufacturers. Third-party quality control verifies each stone against buyer-set inspection criteria. It serves wholesale diamond buyers, jewelry retailers, and jewelry manufacturers.
IDEX Online
IDEX Online — Diamond Trading Marketplace
idexonline.com
Rapaport
Rapaport Trade
rapaport.com
VDB
VDB Marketplace
vdbapp.com
| Attribute | Reverse Auction | IDEX Online — Diamond Trading Marketplace | Rapaport Trade | VDB Marketplace | |
|---|---|---|---|---|---|
| Provider |  | | | VDBvdbapp.com | |
| Founded | 2017 | — | — | — | |
| Sells To | Enterprise, Small Business | Enterprise | Enterprise | Enterprise | |
| Pricing Model | Transactional | Transactional | Subscription | Subscription | |
| Ownership | Venture-backed | — | — | — |
Provider
Founded 2017
Sells To Enterprise, Small Business
Pricing Model Transactional
Ownership Venture-backed
Provider
Founded —
Sells To Enterprise
Pricing Model Transactional
Ownership —
Provider
Founded —
Sells To Enterprise
Pricing Model Subscription
Ownership —
Provider VDBvdbapp.com
Founded —
Sells To Enterprise
Pricing Model Subscription
Ownership —
B2B diamond and gemstone marketplace for jewelry businesses with managed quality control, consolidated shipping, and invoicing across suppliers.
Global B2B lab-grown diamond exchange with AI-priced certified inventory, pre-delivery inspection, and dedicated personal managers.
B2B diamond and gemstone marketplace for jewelry businesses with managed quality control, consolidated shipping, and invoicing across suppliers.
Global B2B lab-grown diamond exchange with AI-priced certified inventory, pre-delivery inspection, and dedicated personal managers.
