Tanzanite Bracelet – Best Price!

I am debating between these engagement rings. Please tell me which one you like better. Please take into consideration the cost, the metal used, and which one has good quality. I want a ring that is different looking than most engagement rings. I don’t want one that 2 million other girls are wearing as their engagement ring. Even though these are cheaper rings, I want mine to look nice and expensive and last a couple years.

1. opal heart

http://www.buy.com/prod/925-sterling-silver-14k-white-gold-plated-lab-created-heart-shape-opal/q/loc/64934/210481610.html

2. Tanzanite

http://www.overstock.com/Jewelry-Watches/10k-White-Gold-Tanzanite-and-Diamond-Accent-Ring/3218798/product.html

3. pink heart

http://www.amazon.com/Sterling-Silver-Created-Sapphire-Engagement/dp/B001JEF4C0

4. butterfly ring

http://www.timepiecesusa.com/product_details.php?p_id=594&source=nextag

Which of these engagement rings is the prettiest in your opinion. I would like to have a unique ring that is a different color other than just regular colored diamonds so please don’t try to show me different boring rings.

1. http://www.overstock.com/Jewelry-Watches/10k-White-Gold-Tanzanite-and-Diamond-Accent-Ring/3218798/product.html

2. http://www.overstock.com/Jewelry-Watches/14k-Gold-Pink-Topaz-and-1-4ct-TDW-Diamond-Ring/2900293/product.html

3. http://www.amazon.com/Created-Sapphire-Heart-Solitaire-Engagement/dp/B001M2D1S8

THANKS!