A quintet of treasures from the March 2013 Hong Kong International Jewellery Show:(Above)1. Santa Maria Earrings in 18k gold with 34.65 cts. t.w. aquamarine and 2.42 cts. t.w. diamonds; $86,000; Lorenzo Jewels, Los Angeles; 213-233-4207; ljintl.com 2. Ring in 18k gold with akoya pearl and black and colorless diamonds; $5,100; KGH Jewellery, Ramat-Gan, Israel; 972-3752-5019; kgh.co.il 3. Reborn pendant necklace in 18k gold with diamonds; $1,100; Gold Source Jewellery, Hong Kong; 852-2312-2299; goldsourcejewellery.com 4. Necklace in 18k yellow gold with 17.29 cts. t.w. diamonds with 9 mm–11 mm golden pearls; $160,000; Jewelmer, Makati City, Philippines; 632-810-0266; jewelmer.com 5. Bracelet in 18k rose gold with palladium and citrine, blue topaz, amethyst, peridot, pink sapphire, tsavorite, diamonds, and orange, blue, and red sapphire; $30,454; Zorab Creation, S