RBI has issued a Sovereign Gold Bond tranche after six months this time now and is definitely a good investment option, as it offers an additional 2.5% interest per annum, other than gold price appreciation. Gold is an excellent portfolio diversifier and a hedge against uncertain times. In India, Gold has given around 12% CAGR return in the last 25 years, if this historical return continues going forward, the money invested in this SGB can double in the next 8 years, if one holds it till expiration.