About Lab Grown Diamonds
What is a lab grown diamond?
A lab grown diamond is a real diamond, grown in a controlled laboratory environment instead of being mined from the earth. It has the same chemical composition (pure carbon), crystal structure, hardness and sparkle as a mined diamond.
Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are physically, chemically and optically identical to mined diamonds. They are not imitations such as cubic zirconia or moissanite.
How can I tell a lab grown diamond apart from a mined diamond?
They cannot be told apart by the naked eye or by a standard jeweller's loupe. Only specialised laboratory equipment can identify the origin. Every Diahart diamond is clearly disclosed and certified as laboratory-grown.
Will my lab grown diamond lose its sparkle or change colour over time?
No. Like a mined diamond, a lab grown diamond is permanent. It will not fade, cloud or change colour.
Why are lab grown diamonds more affordable?
They are grown in weeks instead of being mined over long supply chains. This lets you choose a bigger or better quality diamond for the same budget.
Are lab grown diamonds ethical and sustainable?
Lab grown diamonds do not require mining, which reduces land disturbance and traceability concerns linked to mined stones.
Certification & Quality
Are Diahart diamonds certified?
Yes. Every Diahart piece is certified. Our diamonds come with an IGI (International Gemological Institute) or GIA (Gemological Institute of America) certificate that details the diamond's carat, colour, clarity and cut.
Is your gold hallmarked?
Yes. All Diahart gold jewellery is BIS Hallmarked, which certifies the purity of the gold.
What gold purity do you offer?
We offer 14KT, 18KT and 22KT gold, available in yellow, white and rose gold.
What should I do if I lose my certificate?
If you are unable to produce the original certificate during a return, exchange or buyback, the company will send the jewellery for recertification. The shipping and certification cost for this will be borne by the customer.
Orders & Payment
Is my jewellery made to order?
Yes. Your jewellery is custom made for you once the advance payment is received.
How long does it take to make my jewellery?
Please allow up to 14 business days for us to custom make your jewellery, conduct a quality check and obtain the necessary certifications before shipping.
What payment methods do you accept?
We accept UPI, credit and debit cards, net banking and bank transfer. EMI is not available. Card and bank details are processed directly by our payment gateway and are not stored on our systems.
Do you require an advance payment?
Yes. The full gold value of your jewellery is paid as an advance when you place the order, and this locks in your price. The balance is payable before dispatch.
Can I see the jewellery in person before buying?
Yes. You can visit our store or book an appointment with our experts.
Shipping & Delivery
Is shipping free?
Yes. All made-to-order diamond jewellery on Diahart includes Free Secure Shipping.
Which courier partners do you use?
We only use reliable shipping partners such as Sequel Logistics or BVC. Your order is transported in armoured trucks once picked up from our manufacturing facility.
Can someone else receive my order?
For security reasons, your order will be delivered only to the person listed on the shipping label. The courier will verify an ID proof to validate this.
Do you ship outside India?
Yes. We ship across India and internationally.
How do I track my order?
Once your order is dispatched, we will send you the tracking details on WhatsApp.
Returns, Cancellation & Refunds
Can I return my jewellery?
Yes. A 7-day return policy is extended to products purchased from our website, subject to the conditions in our 7-Day Returns Policy. Products bought on sale or under a special offer cannot be returned.
Is there a charge on returns?
Yes. An admin and restocking charge of Rs. 5,000 (products up to Rs. 1,00,000) or Rs. 10,000 (products above Rs. 1,00,000) is deducted. This amount is offered as a credit towards your next purchase within 3 months.
Can I return customised or engraved jewellery?
Returns and buyback are not applicable for customised, personalised or engraved jewellery. However, exchange is applicable on these.
Can I cancel my order?
Yes. Cancellations within 24 hours of order confirmation are free. After 24 hours, a 5% fee applies. Once your order has entered the processing stage, it cannot be cancelled or modified.
How will I receive my refund?
Return refunds are processed to the same mode of payment within 5 working days of the returned product passing our quality check.
Lifetime Exchange & Buyback
What is the Lifetime Exchange Programme?
You can exchange your old Diahart jewellery for a new piece at any time. Gold is valued at 100% of the metal weight at the prevailing rate, diamonds at 90% and solitaires at 80% of the prevailing diamond value.
Will Diahart buy back my jewellery?
Yes. Gold is valued at 95% of the metal weight at the prevailing rate, diamonds at 80% and solitaires at 75% of the prevailing diamond value.
Are making charges included in the exchange or buyback value?
No. Exchange and buyback values are calculated excluding wastage, labour, making charges and taxes.
Do I need my invoice for exchange or buyback?
Yes. An additional 20% will be deducted from the exchange and buyback value if you do not have the original or a copy of the invoice.
Sizing, Repairs & Care
Can I resize my ring?
Yes. We resize rings at no extra charge, except where additional metal, diamonds or gemstones need to be added. The shipping charges for resizing are borne by the customer.
Do you repair jewellery?
Yes. Repairs and alterations are done at an appropriate extra charge. Shipping charges for repairs are borne by the customer.
How do I find my ring size?
Use our Ring Size Guide to find your size at home.
How should I care for my jewellery?
Clean your jewellery with warm water, mild soap and a soft brush. Store each piece separately to avoid scratches, and remove it before swimming, gym, or using chemicals and perfume.