BALZAN JEWELRY REPAIRS: Offering five star jewelry repairs to the Bay Area. Look us up on Google or Yelp. BALZAN LABORATORIES: Insurance, Estate, and Gem Identification appraisals available daily with a Master Gemologist. Drop off anytime or make an appointment to sit with appraisal team. Volume discounts for Estate and Trade appraisal. DIAMOND BUYING GUIDANCE: Come in before you buy a diamond and I can explain and assist you in the buying process. We can show you the differences in color, clarity, carat weight, cut, shape, budget and laboratory reports. If you have already bought a diamond, we can make sure it matches the lab report. Dealers may send multiple stones to our office for you to view before you make your purchase. We release the diamond of your choice once the seller permits.