12Fifteen Diamonds promo code - November 2026

Black Friday is where 12Fifteen Diamonds tends to open up its deepest markdowns on lab grown diamond stock. Beyond the standard coupon codes that circulate year-round, the Black Friday event typically layers percentage discounts across engagement rings, wedding bands, and fine jewellery without requiring a code at all. The combination angle is key: shoppers who also hold a newsletter sign-up offer or an active coupon can sometimes apply it on top of already-reduced Black Friday pricing, though it is worth…

Singles Day on 11 November has become a genuine secondary sale event for 12Fifteen Diamonds, with selected lab grown diamond rings and fine jewellery pieces receiving temporary price drops. Beyond the obvious coupon codes, the less obvious play here is timing: Singles Day discounts have historically appeared alongside the store's broader November promotions, meaning a shopper who monitors the site across both events can pick the deeper reduction. The two mechanisms combine when a Singles Day markdown overlaps with a…

The headline discounts at 12Fifteen Diamonds grab all the attention - dollar-off codes and sitewide percentage deals sit front and centre. Beyond the codes, 12Fifteen Diamonds also runs a referral program where recommending their lab grown diamond pieces to a friend earns both of you a discount on your respective orders. The referral credit stacks as a separate mechanism from the coupon stack you might already be using, so a referred friend can apply their welcome discount on top of…