Diamonds Factory Review

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Diamonds Factory is an online diamonds manufacturer aiming to retail quality diamonds at reasonable factory prices in the form of engagement rings, pendant necklaces, bracelets and earrings, as well a selection of men’s jewellery. Visit the sale, or write your own review here.

Buyer Survey

Many reviews noted the helpfulness of the online diamonds assistants in answering any questions regarding the quality, clarity or weight of the jewellery and how this greatly improved their trust in buying online rather than on the high street.

Many drew comparison to retailers such as Ernest Jones or H. Samuel, believing Diamonds Factory to offer much better value.

Many buyers felt that the packaging and presentation of the jewellery was excellent, in addition to the included documentation verifying the origin and valuation of the diamond. Also, most have remarked on the efficiency and speediness of delivery, with the orders always arriving on the specified day.

The majority of positive comments were related to the value that comes with buying direct. See below for additional promo and sales info, or add your own review at the bottom of this page.

Negative comments were predominantly related to delayed delivery (despite claims that products are delivered recorded next day) and a poor after sales service.

Sales & Promotions

Diamonds Factory does not hold any seasonal sales as their prices are already at discount manufacturer prices. As there are no traders or third party tradesmen involved, Diamonds Factory sell their diamonds at the lowest UK prices guaranteed.

However, Diamonds Factory regularly run promotions such as special offers and discounts for ‘liking’ their Facebook page and for signing up to their online newsletter on

Coupon, Discount, and Voucher Codes

Customers can obtain great deals at Diamonds Factory by visiting and browsing their list of discount codes for special offers when purchasing online. Copy and paste the codes at the checkout to receive discounts on delivery, interest free credit and bespoke jewellery design. Websites such as and also offer similar voucher codes for Diamonds Factory.


Diamonds Factory jewellery are packaged in compact, wooden boxes and despatched free of charge to the UK via FedEx or Royal Mail Special Delivery. Purchases are also insured in transit for customer peace of mind. Bespoke customised jewellery takes 3-4 weeks to arrive whilst all other stock takes 2-3 working days.

If customers need their orders sooner they may call 0800 072 1170 to discuss express options.

Refund & Returns Policy

Customers can return items purchased from Diamonds Factory within 30 days of receipt providing the jewellery is not worn, damaged, resized or altered.

Buyers are required to return the item in the original packaging and include a cover letter detailing their reasons for return before being sent by recorded and tracked delivery back to Diamonds Factory. The included bar coded security tag must also be left intact upon return in case of voiding the 30 day returns policy.

As long as the returned item is cleared by the Quality Assessment department a full refund or exchange will be offered, usually taking 8-10 days to process.

Address & Phone Number

Telephone: 0808 231 6108 

Postal Address: Diamonds Factory 2.05,
14 Greville Street,
Hatton Garden, London


Diamonds Factory Origins and History

Diamonds Factory is the online retail division supported by a reputable diamonds manufacturer that has been manufacturing diamond jewellery for over three generations. All jewellery is designed and crafted within specialist factories by experienced craftsmen whilst operations are headed in the Hatton Garden office, London.

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