HIRO KOGANEI NEW COLLECTION


2017 NEW COLLECTION

Heart - One’s intimate feelings

HEART
People hold intimate feelings of love, ambition, and passion in their hearts.The heart motif diamond is designed to reflect these feelings.“Heart” motif expresses love ? for partners, family, and the world. This love is held deep within the diamond. The diamond is a sacred place.Unlike diamonds with standard cuts, Hiro KOGANEI’s rounded heart-shape diamonds are a special expression of love and grace. The theme of his heart shape design is “to bring love to you”.

HIRO KOGANEI

NEW COLLECTION


2017 NEW COLLECTION

Heart
One’s intimate feelings

HEART
People hold intimate feelings of love, ambition, and passion in their hearts.The heart motif diamond is designed to reflect these feelings.“Heart” motif expresses love ? for partners, family, and the world. This love is held deep within the diamond. The diamond is a sacred place.Unlike diamonds with standard cuts, Hiro KOGANEI’s rounded heart-shape diamonds are a special expression of love and grace. The theme of his heart shape design is “to bring love to you”.

HIRO KOGANEI

NEW COLLECTION


2017 NEW COLLECTION

Heart
One’s intimate feelings

HEART
People hold intimate feelings of love, ambition, and passion in their hearts.The heart motif diamond is designed to reflect these feelings.“Heart” motif expresses love ? for partners, family, and the world. This love is held deep within the diamond. The diamond is a sacred place.Unlike diamonds with standard cuts, Hiro KOGANEI’s rounded heart-shape diamonds are a special expression of love and grace. The theme of his heart shape design is “to bring love to you”.

HIRO KOGANEI COLLECTION

Hiro KOGANEI has long been engaged in diamond polishing.

He wanted to give the world a jewelry brand with the highest standards of cutting technique and craftsmanship.
Hiro KOGANEI believes that individual taste and style should be reflected in a diamond’s unique character.

He mastered his craft and established the classic “Hiro KOGANEI collection”,

creating a world of new diamonds with a beauty and brilliancy that no one has ever seen.
His unique and varied collection of diamonds is the first of its kind. 
Diamonds are made to order, with precision and quality. They are made just for you.

 

 

Rainbow (50 facets)
This cut recreates the magical beauty of the rainbow that captivates people at all times. The seven-colored spectrum called “fire” - one of the properties of diamonds. “Rainbow” has been designed to release as many “fires” as possible to fascinate people. Real rainbows cannot be seen all the time, but this cut will serve as the bridge to make your dream and desire to have the seven colors in your own hand come true. We humbly present this diamond with such wish.
Subaru (73 facets)
“Subaru” is the name of a group of stars, not a single one. The name’s origin is an ancient word meaning “getting together to become one”. It is called the Pleiades in the Western countries. Its brilliance rivets people and inspire their emotion. When you look at “Subaru”, you will see many sparkles in the sky. Large and small sparkles make you feel as if you were embraced by numerous shining stars. This cut recreates such radiance of stars in a diamond. Wear the panoramic view of stars with this diamond.
Sun (107 facets)
The sun – brightly lights the surroundings and shines eternally – is depicted in this diamond. The concept is to show the “sparkles when releasing lights”, one of the properties of diamonds called “scintillation”, at its best. The sun generously casts its gentle warmth on everything. This cut has been designed to have the aura of the sea, the sky, the earth and people lively glowing under the sun’s blessing. This is the diamond with the warm and eternal brilliance to make people bright and vibrant, which you can treasure to the full extent.
Corona (365 facets)
The mysterious circle the powerful light of the sun creates shines ever gently, as if to courtly embrace. It does not glare, rather keeps releasing transparent light and gives out the beauty that warmly envelopes your heart. Having 365 facets, this cut has been designed to give you the calming light every day of a year and to watch our every step. This is the diamond made by the best and incomparable technique.
Sunflower (101 facets)
This design illustrates the gorgeous beauty of the “Sunflower”, blooming dignifiedly under the bright sun, with the brilliance of the diamond.The “Sunflower” is the summer flower ? it blossoms as the big, bright, and vividly yellow beauty. This diamond is finished with our sincere wish to cheer up everybody who sees it.
Clover - The symbol of happiness.
The four-leaf clover expresses “hope”, “honesty”, “Love” and “Happiness”. Combining the four leaves into one creates an expression of “true love”. Hiro KONGANEI curves a four-leaf clover into a diamond. The leaves come together and sparkle with vitality. The diamond brings good fortune and happiness.
Sakura - Japanism
“Sakura” means “cherry blossoms” in Japanese. Sakura is a symbol of the Japanese mind and “Japanism.” In full bloom, cherry blossoms attract people and enrich their minds. When cherry blossoms bloom, Japan celebrates a “new start”. The sparkle of the Sakura motif diamond symbolizes renewal and eternal life.
Peach - The peach flower says “I am captivated by you”.
A cute pink flower, it calms the mind.The sparkle of the peach flower diamond will captivate your imagination.Incident light rays are calculated from all angles such that a peach flower is perfectly reflected from the table of the diamond.
Cross - The cross is proof of purity and determination.
The cross motif is said to protect you from disasters. When you wear it, you possess holy power. It also represents eternity. As a symbol of purity and determination, it is said to release you from hesitation.Hiro KOGANEI succeeds in creating a perfectly symmetrical cross inside a diamond. The difficult aspect of the cross motif is that the upper side is longer than others and may cause unevenness in brilliancy. Special techniques are required to prevent such unevenness. The cross is curved to create brilliance in all directions. 　It is worthy of its name.

Rainbow (50 facets)
This cut recreates the magical beauty of the rainbow that captivates people at all times. The seven-colored spectrum called “fire” - one of the properties of diamonds. “Rainbow” has been designed to release as many “fires” as possible to fascinate people. Real rainbows cannot be seen all the time, but this cut will serve as the bridge to make your dream and desire to have the seven colors in your own hand come true. We humbly present this diamond with such wish.
Subaru (73 facets)
“Subaru” is the name of a group of stars, not a single one. The name’s origin is an ancient word meaning “getting together to become one”. It is called the Pleiades in the Western countries. Its brilliance rivets people and inspire their emotion. When you look at “Subaru”, you will see many sparkles in the sky. Large and small sparkles make you feel as if you were embraced by numerous shining stars. This cut recreates such radiance of stars in a diamond. Wear the panoramic view of stars with this diamond.
Sun (107 facets)
The sun – brightly lights the surroundings and shines eternally – is depicted in this diamond. The concept is to show the “sparkles when releasing lights”, one of the properties of diamonds called “scintillation”, at its best. The sun generously casts its gentle warmth on everything. This cut has been designed to have the aura of the sea, the sky, the earth and people lively glowing under the sun’s blessing. This is the diamond with the warm and eternal brilliance to make people bright and vibrant, which you can treasure to the full extent.
Corona (365 facets)
The mysterious circle the powerful light of the sun creates shines ever gently, as if to courtly embrace. It does not glare, rather keeps releasing transparent light and gives out the beauty that warmly envelopes your heart. Having 365 facets, this cut has been designed to give you the calming light every day of a year and to watch our every step. This is the diamond made by the best and incomparable technique.
向日葵（101面体）
This design illustrates the gorgeous beauty of the “Sunflower”, blooming dignifiedly under the bright sun, with the brilliance of the diamond.The “Sunflower” is the summer flower ? it blossoms as the big, bright, and vividly yellow beauty. This diamond is finished with our sincere wish to cheer up everybody who sees it.
Clover - The symbol of happiness.
The four-leaf clover expresses “hope”, “honesty”, “Love” and “Happiness”. Combining the four leaves into one creates an expression of “true love”. Hiro KONGANEI curves a four-leaf clover into a diamond. The leaves come together and sparkle with vitality. The diamond brings good fortune and happiness.
Sakura - Japanism
“Sakura” means “cherry blossoms” in Japanese. Sakura is a symbol of the Japanese mind and “Japanism.” In full bloom, cherry blossoms attract people and enrich their minds. When cherry blossoms bloom, Japan celebrates a “new start”. The sparkle of the Sakura motif diamond symbolizes renewal and eternal life.
Peach - The peach flower says “I am captivated by you”.
A cute pink flower, it calms the mind.The sparkle of the peach flower diamond will captivate your imagination.Incident light rays are calculated from all angles such that a peach flower is perfectly reflected from the table of the diamond.
Cross - The cross is proof of purity and determination.
The cross motif is said to protect you from disasters. When you wear it, you possess holy power. It also represents eternity. As a symbol of purity and determination, it is said to release you from hesitation.Hiro KOGANEI succeeds in creating a perfectly symmetrical cross inside a diamond. The difficult aspect of the cross motif is that the upper side is longer than others and may cause unevenness in brilliancy. Special techniques are required to prevent such unevenness. The cross is curved to create brilliance in all directions. 　It is worthy of its name.

HIRO KOGANEI COLLECTION

Hiro KOGANEI has long been engaged in diamond polishing.

He wanted to give the world a jewelry brand with the highest standards of cutting technique and craftsmanship.
Hiro KOGANEI believes that individual taste and style should be reflected in a diamond’s unique character.

He mastered his craft and established the classic “Hiro KOGANEI collection”,

creating a world of new diamonds with a beauty and brilliancy that no one has ever seen.
His unique and varied collection of diamonds is the first of its kind. 
Diamonds are made to order, with precision and quality. They are made just for you.

 

 

Rainbow (50 facets)
This cut recreates the magical beauty of the rainbow that captivates people at all times. The seven-colored spectrum called “fire” - one of the properties of diamonds. “Rainbow” has been designed to release as many “fires” as possible to fascinate people. Real rainbows cannot be seen all the time, but this cut will serve as the bridge to make your dream and desire to have the seven colors in your own hand come true. We humbly present this diamond with such wish.
Subaru (73 facets)
“Subaru” is the name of a group of stars, not a single one. The name’s origin is an ancient word meaning “getting together to become one”. It is called the Pleiades in the Western countries. Its brilliance rivets people and inspire their emotion. When you look at “Subaru”, you will see many sparkles in the sky. Large and small sparkles make you feel as if you were embraced by numerous shining stars. This cut recreates such radiance of stars in a diamond. Wear the panoramic view of stars with this diamond.
Sun (107 facets)
The sun – brightly lights the surroundings and shines eternally – is depicted in this diamond. The concept is to show the “sparkles when releasing lights”, one of the properties of diamonds called “scintillation”, at its best. The sun generously casts its gentle warmth on everything. This cut has been designed to have the aura of the sea, the sky, the earth and people lively glowing under the sun’s blessing. This is the diamond with the warm and eternal brilliance to make people bright and vibrant, which you can treasure to the full extent.
Corona (365 facets)
The mysterious circle the powerful light of the sun creates shines ever gently, as if to courtly embrace. It does not glare, rather keeps releasing transparent light and gives out the beauty that warmly envelopes your heart. Having 365 facets, this cut has been designed to give you the calming light every day of a year and to watch our every step. This is the diamond made by the best and incomparable technique.
向日葵（101面体）
This design illustrates the gorgeous beauty of the “Sunflower”, blooming dignifiedly under the bright sun, with the brilliance of the diamond.The “Sunflower” is the summer flower ? it blossoms as the big, bright, and vividly yellow beauty. This diamond is finished with our sincere wish to cheer up everybody who sees it.
Clover - The symbol of happiness.
The four-leaf clover expresses “hope”, “honesty”, “Love” and “Happiness”. Combining the four leaves into one creates an expression of “true love”. Hiro KONGANEI curves a four-leaf clover into a diamond. The leaves come together and sparkle with vitality. The diamond brings good fortune and happiness.
Sakura - Japanism
“Sakura” means “cherry blossoms” in Japanese. Sakura is a symbol of the Japanese mind and “Japanism.” In full bloom, cherry blossoms attract people and enrich their minds. When cherry blossoms bloom, Japan celebrates a “new start”. The sparkle of the Sakura motif diamond symbolizes renewal and eternal life.
Peach - The peach flower says “I am captivated by you”.
A cute pink flower, it calms the mind.The sparkle of the peach flower diamond will captivate your imagination.Incident light rays are calculated from all angles such that a peach flower is perfectly reflected from the table of the diamond.
Cross - The cross is proof of purity and determination.
The cross motif is said to protect you from disasters. When you wear it, you possess holy power. It also represents eternity. As a symbol of purity and determination, it is said to release you from hesitation.Hiro KOGANEI succeeds in creating a perfectly symmetrical cross inside a diamond. The difficult aspect of the cross motif is that the upper side is longer than others and may cause unevenness in brilliancy. Special techniques are required to prevent such unevenness. The cross is curved to create brilliance in all directions. 　It is worthy of its name.

 

He entered Oriental Diamond Industry (current Oriental Diamond Corporation) the pioneer company of diamond cutting in Japan, a joint venture between De beers Corporation and Sumitomo Corporation.
He studied under Haruya YANO, an authority on diamond geometry who developed a framework for his current work, a work that considers numerical aspects in the design process.
With a bold polish like many overseas products, he creates a well-balanced polish that is signature Japanese and driven by a numerical value approach.

Diamonds of Japan are polished using the world’s best techniques.  Hiro KOGANEI helped introduce Japan to a cut of diamond called “Apolloneight”, which, theoretically, is said to be the best round cut, or the “H&C (Heart & Cupid)” that now became one of a criteria of diamond investigation.
In 1997, he started TASUKO Co.,Ltd. which specialized in diamond design and polishing.
By responding to numerous requests for “diamonds with beautiful form and unprecedented brilliancy”, 

he received high esteem from the Imperial household and major jewelers.
In 2009 he started the shop brand,　Designer Diamonds COCORO and released new designs to the market.
When he released his original collection, ”Hiro KOGANE Collection”, he received high praise in Japan and beyond for uniqueness, beautiful form, and brilliancy.

He received the MFU Meister prize in 2013.

 

 

He entered Oriental Diamond Industry (current Oriental Diamond Corporation) the pioneer company of diamond cutting in Japan, a joint venture between De beers Corporation and Sumitomo Corporation.
He studied under Haruya YANO, an authority on diamond geometry who developed a framework for his current work, a work that considers numerical aspects in the design process.
With a bold polish like many overseas products, he creates a well-balanced polish that is signature Japanese and driven by a numerical value approach.

Diamonds of Japan are polished using the world’s best techniques.  Hiro KOGANEI helped introduce Japan to a cut of diamond called “Apolloneight”, which, theoretically, is said to be the best round cut, or the “H&C (Heart & Cupid)” that now became one of a criteria of diamond investigation.
In 1997, he started TASUKO Co.,Ltd. which specialized in diamond design and polishing.
By responding to numerous requests for “diamonds with beautiful form and unprecedented brilliancy”, 

he received high esteem from the Imperial household and major jewelers.
In 2009 he started the shop brand,　Designer Diamonds COCORO and released new designs to the market.
When he released his original collection, ”Hiro KOGANE Collection”, he received high praise in Japan and beyond for uniqueness, beautiful form, and brilliancy.

He received the MFU Meister prize in 2013.

Hiro Koganei Collection

Hiro Koganei Collection

Hiro Koganei Collection