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ADAMAS | ENGAGEMENTA unique solitaire ring
that embodies "ADAMAS", the origin of the word "diamond"
From ¥330,000 -
ADAMAS | ENGAGEMENT〜Unique solitaire meaning "ADAMAS"
the etymology of diamond
From ¥330,000 -
MAIA| ENGAGEMENTSolitaire with a Modern Interpretation
Mia Setting"
From ¥330,000 -
MAIA | ENGAGEMENTSolitaire with a modern interpretation
"Maya Setting"
From ¥330,000 -
CRIOUS | ENGAGEMENTA setting that holds the diamond at the tip of the band,
creating the illusion of it floating.
From ¥550,000 -
MERCURYDNA First Collection
From ¥165,000 -
FLORAFlora, with its sharp, rising ridges, exudes a quiet presence.
From ¥165,000 -
VOLCANVulcan: light emanating from delicate cutting
From ¥275,000 -
THEMISThemis, where two rings overlap as if sharing the same moment.
¥220,000~ -
CRIOUSKrayos, inspired by Ouroboros, the symbol of eternity
From ¥275,000 -
MOBIUS∞ "infinity" and X "possibility" fused into Möbius
¥330,000〜 -
MOBIUS∞ (infinity) and X (possibility) fused into Möbius
¥440,000 -
MOBIUS∞ (infinity) and X (possibility) fused into a Möbius
¥550,000 -
MAIAA new era of eternity rings, interpreted for the modern age
¥660,000 -
MERCURYDNA - First Collection
¥550,000 -
THEMISThemis, where two rings overlap as if sharing the same time
¥440,000 -
CRIOUSKleios, inspired by the Ouroboros, a symbol of eternity.
From ¥385,000 -
BALIUSVarius, adorned with studs
¥275,000 -
ONLY ONE DIAMONDFLC for Apple Watch
Announcing a special bracelet from FLC
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MEMORIAL IMPRESSINGThis is a service to engrave names, anniversaries, important words, or messages, as well as diamonds or birthstones, on the inside of the ring.
e.g. 2026.11.11 A to B
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RE-SIZINGThis service allows you to resize your bridal ring to accommodate natural changes in your finger size.
*Please note that some ring designs cannot be resized. -
RENEWAL POLISHThis service polishes away minor scratches that naturally occur, restoring the item to like-new condition and its original luster.
*Free once within two years of purchase.
*Some deep scratches may not be completely removed. -
PACKAGEWe offer specially crafted paulownia wood boxes, a traditional Japanese material.
These paulownia boxes, with their high humidity resistance and durability,
will beautifully preserve your ring and its memories for a long time.
CORE JEWELS LAB
We offer consultations for bridal rings.
Visits are by appointment only.
Please send your preferred date and time using the form below.
Business Hours｜12:00 – 19:00 (Closed Tuesday)
Appointment Only
2-18-5 Jingumae, Shibuya-ku, Tokyo 150-0001
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