Frequently asked questions
Shipping & Delivery
We offer free insured shipping within the United States.
Processing time: 3–5 business days.
Custom orders may take 2–4 weeks depending on design and approval.
Do you offer returns or exchanges?
Yes, unworn products can be returned or exchanged within 14 days.
Custom-made items are final sale.
Contact us at diamondsflashnyc@gmail.com for support.
Are your diamonds certified?
All natural and lab-grown diamonds over 0.50 carats come with IGI or GIA certification.
We only source ethically and responsibly.
Do you make custom engagement rings?
Yes — submit a request through our Customize page.
Our design team will reply within 24 hours with options and pricing.
What payment options do you accept?
We accept Visa, Mastercard, Amex, Apple Pay, Shop Pay, and PayPal.
Financing through Shop Pay Installments is available on eligible orders.
How do I contact support ?
Email: diamondsflashnyc@gmail.com
Instagram: @diamondsflashnyc
Our team replies within 24 hours.