The world of jewelry has forever been a realm of mystique, elegance, and aesthetics. Yet, the future of the jewelry industry, specifically online jewelry stores, seems destined for an invigorating transformation, spurred on by technological advancements and shifting consumer preferences. Far-reaching predictions and emerging trends indicate that the blend of digital technology and traditional craftsmanship will redefine the jewelry industry's landscape.

To comprehend the metamorphosis of online jewelry stores, one must delve into the intricate tapestry of digital commerce. E-commerce, the online transacting of goods and services, has revolutionized the retail landscape. It has eliminated geographical barriers, transcending time zones and borders, and brought buyers and sellers into a common global market. This phenomena-led digital transformation has now trickled into the world of jewelry, encouraging the setting up and growth of online jewelry stores.

Artificial intelligence (AI) is a key driver in this digital revolution. AI, through machine learning and data analytics, has the potential to offer personalized experiences to customers. With AI, online jewelry stores can predict buyer preferences, recommend products based on past purchases, and offer personalized discounts. This hyper-personalization can lead to improved customer engagement, loyalty, and ultimately, increased sales.

The integration of Augmented Reality (AR) and Virtual Reality (VR) technologies into the online jewelry space is an ascending trend. AR and VR, previously confined to the gaming and entertainment sectors, have found purpose in the online jewelry market. These immersive technologies can offer a ‘try-before-you-buy’ experience to customers. Users can virtually try on jewelry pieces in real-time, providing a tactile shopping experience that closely mirrors the physical one. This can reduce product returns and increase the likelihood of purchases.

On the other hand, Blockchain technology can also play a significant role in the online jewelry industry. Blockchain, an immutable, decentralized digital ledger, offers transparency, security, and traceability. In the context of jewelry, blockchain can enable the tracking of precious stones and metals from their origin to the end consumer. This ‘mine-to-market’ transparency can mitigate the industry’s grave concerns regarding conflict diamonds and unethical mining practices, fostering consumer trust and brand loyalty.

Moreover, 3D printing, a process creating three-dimensional objects from a digital file, is an emerging trend in the jewelry industry. It offers the ability to create intricate, unique designs that may be too complex for traditional handcrafting methods. This can result in a cost and time-effective production process, without compromising on the craftsmanship that defines this industry.

From the perspective of game theory, a branch of mathematics that studies strategic interactions, these technological advancements can lead to a state of 'Nash Equilibrium' in the online jewelry market. Named after the mathematician John Nash, this equilibrium occurs when no player in a game can gain by unilaterally changing their strategy, given the strategies of the other players. In the context of online jewelry stores, this equilibrium could be achieved when all competitors adopt these technologies, resulting in a level playing field.

However, these emerging trends and predictions are not devoid of tradeoffs. While AI can offer personalization, it also raises concerns regarding data privacy and security. Similarly, the implementation of AR and VR requires significant capital investment and technological infrastructure. Furthermore, the use of blockchain and 3D printing raises questions about job losses in traditional mining and crafting sectors.

It seems inevitable that the future of online jewelry stores will be dictated by a blend of digital technology and traditional craftsmanship. The challenge lies in striking the right balance between adopting new technologies and retaining the age-old allure of jewelry. As we gaze into the crystal ball, it is clear that the jewelers who can successfully navigate this digital transformation will be the ones who shine brightest in the competitive landscape of online jewelry stores. The advancement of technology is not just an addition to the jewelry industry; it is a paradigm shift that is set to revolutionize the way we buy and perceive jewelry.