Rooted in the heritage of Yogyakarta, TREMENDUM redefines jewelry by blending ancient local craftsmanship with contemporary design. Inspired by traditional carvings, weapons, and ceremonial attire, every piece carries the essence of Indonesia’s rich visual culture. This collection is a collaboration between Rockologist and architect Fani Atmanti, uniting material tradition with architectural sensitivity. We believe culture is not just to be preserved it is to be worn.
Tremendum brand was founded with the aim of creating beauty for new age using silver material and local bench-made technique from old city in Yogyakarta which was the first capital of Mataram Sultanate.
Tremendum comes from the term “mysterium tremendum”. The idea comes from the mysterious, awe-inspiring moment when we experience something soulful and beyond beautiful. The first series are inspired by the traditional carving, jewelry, weapon, and clothes from Indonesian tribes.
T R E M E N D U M is a collaboration piece between Rockologist (bespoke supplier of benchmade wedding ring) and Indonesian architect Fani Atmanti. Blending Indonesia local craftsmanship with a contemporary concept,
T R E M E N D U M brings a new beauty of Asian craftsmanship.
Tremendum is created as an appreciation and admiration of Indonesia’s tribal diversity and the skill of Indonesia’s local jeweler. This ancient culture needs to be appreciated, not only to preserve the culture itself but also to save the civilization from extinction.
IG : @faniatmanti
IG : @rock.ologist
Fani Atmanti is an Indonesian architect with a deep appreciation for art, heritage, and Austronesian culture. Based in Japan, her career spans across prestigious firms like Kengo Kuma and Sou Fujimoto, where she tackled projects blending tradition and innovation. Her ongoing cultural preservation work at traditional community at the rainforest settlement in Indonesia reflects her commitment to documenting and celebrating Indonesia’s rich history. In TREMENDUM, she brings her vision to life through design that honors the past while embracing the future
Founded in 2015, Rockologist is a bespoke jewelry brand specializing in hand-crafted wedding rings. With a mission to make artisanal jewelry accessible, Rockologist has revitalized the careers of local craftsmen once marginalized by mass-production technologies. Their deep respect for materials and traditional methods results in meaningful and timeless pieces that embody the spirit of true craftsmanship. Rockologist continues to inspire a return to authenticity in the world of jewelry.
GERE comes from the word takula gere which is a
wooden head covering from Maniamölö,
South Nias
Takula gere is used by a traditional leaders/
medicine man and it is an intermediary tool
between humans and spiritual figures.
GERE has a long horizontal sheet-like shape that
covers the two fingers (index and middle fingers)
LANI is one of the tribes in Tolikara district, Papua.
The Lani tribe has a weapon (bow). Some tribes in
Papua use traditional weapon to fight the other
tribes to defend their territory
The line from LANI lookslike a wound in our hands.
The line shows a symbol of persistence and
survival
Töla is derived from töla zaga, a thick bracelet from
Hiliganöwö, Nias Island. It is originally made from
wood and plated with 16 to 18 carat of gold. It is
usually used for attending special event and
marriage.
Töla zaga is the main inspiration for this ring. The
ring has two patterns, plain and stripe which gives
a balance of the minimal and decoration.
Ulö means snake in Nias language. The snake
shape decoration can be found in megalithic stone
on the public space and wooden house decoration.
The snake is believed as the wild animal which is
belong to outside human world and believe as the
mythical creature that protect the house from the
danger and disaster.
SARO is actually an earrings form Nias tribe. It is
originally made from gold and called saro dalinga.
Earrings are used by women when attending
traditional events and festivals.
SARO has symmetrical pattern that represent the
high aesthetic in Nias tribe.
SEGE is a weapon used by one of the tribes in
Papua. SEGE has a pointed shape in the middle that
resembles a spear and surrounded by thick surface
which resembles a shield.
Sukhu is a wooden comb from Tuhegewo area,
Nias Island. Sukhu is commonly used as a beauty
tools for women in Nias tribe.
Sukhu ring illustrates the dynamic side of the
wooden comb and has a asymmetrical shape.
“Tremendum” is derived from “mysterium tremendum” an awe inspiring feeling when we experience something deeply soulful and transcendent.
Each piece is a reflection of this spirit, capturing the sacred beauty of Indonesia’s tribal legacy and the skill of its master artisans.
TREMENDUM packaging is custom crafted, using natural dyed textured paper for a raw, minimal look.
Inspired by volcanic stone and ancient heritage, the design reflects our core values timelessness and substance.
For every purchase, TREMENDUM donates a portion of the proceeds to the Sokola Institute, which supports education for indigenous communities across Indonesia.
We believe proper education will help preserve local wisdom, protect nature, and empower future generations.
Each piece you wear helps preserve Indonesia’s indigenous culture and supports education.
If you’re looking to place an order with a high level of customization, then this is the order form you need.
To our amazing customers: before you complete your order, please make sure you have WhatsApp installed or are logged into the app. Happy creating!