Guru Diam casts, sets and finishes custom diamond jewelry for jewelers in 4–6 working days from approved CAD, in-house in New York and India. Metals: 14K and 18K gold, silver and platinum. Diamonds come from our own natural and lab-grown inventory.
Casting
Once you approve the CAD, the piece is cast in your chosen metal. Our lost-wax casting guide explains the general method.
Diamond Setting
Center diamonds and melee are set from our own inventory, so sizes are matched before setting: matched melee within ±0.05–0.10 mm and matched pairs within ±0.1–0.2 mm and about one color grade. Settings include prong, bezel, halo, pavé and the other ring styles in our custom jewelry manufacturing guide.
Finishing
Each piece is finished to your spec. Tell your account manager the finish you want when you send the brief.
Quality Control
Every piece is checked against the approved CAD before it ships. For common defects to watch for, see casting and setting defects.
Turnaround and Shipping
- 4–6 working days from approved CAD; complex pieces 2–3 weeks.
- Same-day shipping from New York on orders before 6 PM ET; international delivery 3–4 business days.
- Drop-shipping to your customer available.
- Every order tracked in our live order portal.
Start with a $30 ring CAD, or see the full custom jewelry manufacturing service.
Casting, Setting and Finishing: FAQ
Where is the jewelry made?
In-house in New York and India.
How long do casting, setting and finishing take?
The finished piece is ready 4–6 working days after you approve the CAD; complex pieces can take 2–3 weeks.
Which metals can you cast?
14K and 18K gold, silver and platinum.
Do you drop-ship finished pieces?
Yes, straight to your customer.
Questions on a custom piece? WhatsApp +1 (201) 969-5916 or call +1 (212) 652-7108.
