From the perspective of culture and history, both of them have profound historical and cultural connotations. Ruby is regarded as the most precious gem in the Bible. According to records, it has a long mining history of thousands of years. Sapphire often appears in royal jewelry and was used as a marriage proposal ring as early as Napoleon's time. Both of them are precious stones owned only by royal nobles in the early days, and they are symbols of power and status. Ruby and sapphire are very irreplaceable in colored gems, which is why many of colored gems are among the top five gems in the world.
The investment and collection value of jewelry mainly depends on the value of the gem itself and its cultural value. There are both rubies and sapphires, and from the rarity point of view, rubies and sapphires are rare and highly rare gems, which have a deep mass base and a very broad market prospect. Both of them have investment and collection value, and it is hard to say who is better. Try to choose ruby or sapphire with good quality and high rarity.