The 55% off voucher at the top of this page is the lead offer from Diamonds Factory, a last chance code that takes 55% off qualifying last chance diamond jewellery when you add the promo at checkout. It is best for you if the items you want are included in that last chance range and are still in stock. If your purchase is a custom made piece or meets the $3,400 threshold, one of the other site deals may be worth comparing.
Very large purchases (well above $3,400), for example engagement rings or multi piece orders: start by checking whether the individual items are in the last chance diamond jewellery range, because the 55% off voucher at the top of this page gives 55% off those qualifying last chance pieces. If the items are not last chance stock but are full price, the 10% off when you spend $3,400 applies to orders of $3,400 or more and will reduce the total by 10%. On a $3,400 order, for example the 10% off code takes $340 off, leaving $3,060. If the same $3,400 order contains last chance diamond items and the 55% voucher applies, that voucher will usually save far more.
Mid size purchases under $3,400 but with last chance items: use the 55% off voucher at the top of this page when those items are eligible and in stock. If your mid size order is made to order jewellery, the sale that gives an extra 15% off all made to order jewellery will be the relevant saving; that 15% applies to specific custom pieces only, not to general stock.
Small purchases and single gifts below a few hundred dollars: the site wide sale listing "up to 55% off everything" is where to look. "Up to 55% off" does not mean every item is 55% off, so check the marked price on the product page. If the item you want is already reduced in the sale, the public sale price is often the best option for small orders where the codes do not apply.
Buying made to order items: the extra 15% off made to order jewellery applies to custom pieces, so compare that 15% with any other offer that explicitly covers the same custom range. The 10% off at $3,400 does not supersede the made to order extra unless your total is over the threshold and those terms allow both, which the brand terms do not state.
Our records show two percentage codes for Diamonds Factory in the 12 months to October 2026 and the biggest percentage code in that period was 55% off, recorded in October 2026. Our team completed two checkout tests across two offers in the 12 months to October 2026 and kept screenshots as proof.
When choosing, compare the final totals for the same basket: if the 55% off voucher applies to the exact items in your cart, it will usually leave the lowest price. Otherwise take the marked sale price or the 15% made to order discount for custom pieces, or the 10% off code if your order meets the $3,400 threshold and none of the higher percentage options apply.