Good for Valentines day if just ordering enough to get free shipping. Ordered plenty of times and quality has been good and presented nicely. Quick shipping in the past. I have linked the URL to USD rather than AU so that you can filter by price.
Terms and conditions off website:
Terms & Conditions:
*Offer valid on select regularly-priced jewelry purchase. Cannot be combined with any other offer or discount code, cannot be applied retroactively. Offer is only valid on select jewelry items while supplies last. Without limitation, offer will not apply to loose diamonds, Build Your Own Diamond Jewelry®, Build Your Own Ring®, Build Your Own Earrings®, Build Your Own Diamond Pendant®, Monique Lhuillier Engagement, Truly Zac Posen Bridal, preset engagement rings, gift certificates, special orders, backordered items and jewelry cleaning products. Discount will appear at time of check out AFTER the email has been clicked and an item has been added to your cart. Does not apply towards any duties, taxes or shipping insurance fees. Offer valid for one-time use. Maximum discount is $100 USD per customer, per order. Discount is set in USD, equivalent can be applied in another currency and at the exchange rate accepted by Blue Nile. Void where prohibited. Offer expires at 11:59 PM EST on January 25, 2015. The offer terms and conditions are subject to change at any time without prior notice. Other restrictions may apply.
Ts & Cs kinda kill the deal, the best value is to be had building your own rings etc, still a great website and great prices.