Wholesale Diamonds
Wholesale diamonds for jewelers, private buyers, and advisors who care about paper, make, and confidence.
Heritage Trading Co handles diamonds the way serious buyers around Northern New Jersey, Manhattan, and the wider tri-state market actually buy them: through a tightly edited weekly release built around make, movement, documentation, and margin. Instead of a retail-style grid, this page explains the lane we work in and the terms behind it.
What this category is
This is a wholesale diamond desk, not an e-commerce shelf. We focus on stones that independent jewelers, private-office buyers, and affluent end clients can actually place: dependable bridal goods, better certified singles, matched layouts, and occasional larger stones that deserve direct conversation rather than anonymous add-to-cart treatment.
Typical weekly profile
- GIA-certified singles in the sizes and qualities that move consistently in bridal, anniversary, and upgrade conversations
- Rounds supported by strong demand shapes including oval, emerald, cushion, pear, and selective princess cuts
- A mix of fast-moving commercial goods, cleaner fine makes, matched pairs, layouts, and occasional statement stones for private review
Spec ranges
What we typically carry
Typical sizes
Most weeks center on 0.70ct to 3.00ct singles, with supporting goods from sub-carat bridal stones through 5.00ct+ specials when available. We also handle select matched pairs, layouts, and melee parcels by request.
Color & clarity
The core market sits in well-priced D–J colors and IF–SI clarities, with cleaner commercial makes and stronger fine goods both represented depending on demand, shape, and value position.
Make & market fit
We favor stones with honest make, strong face-up appeal, and pricing that makes sense relative to spread, fluorescence, paper, and current salability — especially for clients who care about both beauty and exit logic.
Certification policy
- GIA is the baseline reference point for primary certified singles, and report status is disclosed clearly before any stone is discussed for shipment or memo.
- If a stone is uncertified, in an alternative paperwork lane, or suited to a more commercial use case, that is stated plainly and priced accordingly rather than blurred into the certified category.
- Natural and laboratory-grown diamonds are kept fully separate, with direct item-level disclosure so buyers always know exactly which lane they are in.
Memo terms
- Memo is relationship-led and offered to approved trade accounts, not as an open public entitlement.
- Hold periods, client-view windows, return timing, and any reserve conditions are agreed in writing before release.
- Shipping method, insurance responsibility, and condition-at-handoff are confirmed stone by stone so there is no ambiguity once goods move.
- For local relationships, private review appointments can be the better fit than blind circulation.
Who this is for
Private release
Request this week's diamond list
Share the sizes, colors, clarities, shapes, and paperwork lane you are actively buying for, and we will send the current release that best fits your desk. If you are local to Northern New Jersey, we can also arrange a private review.
Trade questions
Buying diamonds from this desk
- Who can buy wholesale diamonds from Heritage Trading Co.?
- Heritage Trading Co. supplies wholesale diamonds to jewelers, dealers, manufacturers, designers and qualified trade professionals, as well as private buyers working through an advisor. Trade pricing and the weekly inventory list are released to approved accounts, which are opened by application through the Trade Portal.
- What kinds of diamonds does Heritage Trading Co. carry?
- The desk carries GIA-certified single stones, calibrated melee and small parcels for manufacturing and repair work, Old European and other antique cuts for restoration and collector work, and matched pairs, layouts and fancy shapes assembled to specification. Availability rotates weekly rather than sitting as a fixed catalog.
- Are Heritage Trading Co. diamonds certified?
- Certified singles are represented with their GIA report and the certificate number is listed stone by stone on the weekly release. Melee and small parcels are sold to stated size, color and clarity ranges rather than individual reports, which is standard practice for goods at that size. Natural and lab-grown stones are always disclosed separately and never mixed.
- How do I see current diamond inventory and pricing?
- Specific stones, net pricing and current memo terms go out to approved trade accounts in a weekly list rather than being published on the site. Requesting the list places you on that release; registering an account unlocks pricing on the ordering panels.
- Does Heritage Trading Co. offer memo terms?
- Yes. Memo terms are available to approved trade accounts and are confirmed at the time of the release, since terms move with the market. Terms are stated plainly with each weekly list rather than negotiated case by case after the fact.