your Love
About our Diamonds Let the Diamond Brighten the Future of Two
Just as each person is unique,
natural diamonds, being minerals,
also possess individual characteristics.
To illuminate and enhance
the story of the couple getting married,
ith values the artistry of bringing out
their charm and beauty to the fullest.
We offer exclusively unique diamonds, each with its distinct allure.
5EX diamonds that brighten up the couple with the finest sparkle.
5EXに設けられた厳格な基準
Reflection
Surface
Perfect H&A Diamond
サリネプロファイルレポート
「サリネプロファイルレポート」は、イスラエルに本社を置くサリネ・テクノロジー社 (Sarine Technologies Ltd. Israel) より提供される評価レポートです。 ダイヤモンドの“輝き” の評価に加え、原石情報・加工過程・AIテクノロジーによる4C評価をデジタルデータとして可視化しました。
ご納品後は、お客様がお持ちのスマートフォンなどのデバイスより、いつでも閲覧いただけるようご案内いたします。
Romantic Couple Diamonds,
ith Diamonds
"ith Diamonds," our unique program, provides a pair of diamonds cut from a single diamond rough that has taken billions of years to shape.
At ith, we embrace the Sarine Technologies Diamond Traceability Program from Israel, a diamond-related company. We issue certificates that not only vouch for the origin and production process but also symbolize the enduring journey of love, ensuring transparency in the sourcing and crafting of our diamonds.
Diamond of Your Choices
from our Extensive Archive
Our artisans at the atelier will assist you in finding the finest diamond by carefully comparing numerous loose stones.
With Reliable Partners
ith, a brand that began with a single artisan. We have partnered with suppliers who possess some of Japan's top cutting-edge technology, resonating with our sincere approach to craftsmanship. The diamonds available for your precious rings are carefully selected by ith's founder, Ayu Takahashi, following a meticulously chosen route to reach you.
Engagement Rings
The diamonds of an engagement ring gives the shape to the wearers' wishes and the affection of the one who gave it.
In addition to size and quality, the first glance and feeling of the diamonds are also important.
No two pieces of diamonds are the same, and the once-in-a-lifetime encounter with it enhances the special meaning of the ring.
The one and only diamond with the special ring design creates a unique ring that is just for the two of you. Proudly crafted in Japan, for loving couples in Singapore.
Eternity Rings
The eternity rings, with the name meaning eternity, are designed to symbolise eternal love with the uninterrupted row of diamonds.
The key to the eternity ring style is a neat row of diamonds of the same size.
By unifying the size or color, the beauty of this ring design is accentuated.
Our in-house artisans, who are particular about aesthetics and craftsmanship, will select and set each melee diamond on a ring one by one.
Diamond
4C The Diamond 4Cs
The diamond 4Cs are derived from the initial letters of the four categories used to evaluate a round brilliant cut diamond.
The 4Cs are: Carat(weight), Color(shade), Clarity(transparency), and Cut(brilliance).
This standard was proposed by the GIA (Gemological Institute of America) in the mid-20th century.
By establishing clear indicators for the evaluation of diamonds, which until then had been left to the subjective judgment of jewelers, a common understanding of the objective evaluation of individual diamonds was created.
Until these days, the diamond 4Cs are accepted around the world, and well-known high jewelers also use the diamond 4Cs to evaluate diamonds.
Carat
- 6.5mm 1.00ct
- 5.8mm 0.70ct
- 5.1mm 0.50ct
- 4.8mm 0.40ct
- 4.3mm 0.30ct
- 3.8mm 0.20ct
- 3.0mm 0.10ct
Although often thought of as a unit of size,carats are a unit of weight for gemstones,
with one carat weighing 0.2 grams.
It is said to derive from the Greek word "Kararation," which means locust bean,
since in ancient times locust beans (carob beans) were used as weights to weigh gemstones.
Color
- D, E, F Colorless
- G, H, I, J Near Colorless
- K, L, M Faint Yellow
- N, O, P, Q, R Very Light Yellow
- S, T, U, V, W, X, Y, Z Light Yellow
Diamonds are often slightly yellowish with nitrogen,
and the closer to pure colorless transparency, the rarer and more valuable they are.
The color rating is divided into 23 alphabetical grades, from the highest grade D, to the lowest grade Z.
Clarity
- FL/IF Without inclusions
- VVS1/VVS2 Inclusions that are very difficult to detect
- VS1/VS2 Difficult-to-find inclusions
- SI1/SI2 Easy to detect, difficult to see with the naked eye
- I1/I2/I3 Easily detectable with the naked eye.
Clarity indicates the clarity of the diamond, which is evaluated by observing it with a 10x magnification loupe
and comprehensively evaluating the size, number, location, quality, color and prominence of inclusions,
as well as any abrasions or scratches that occurred after the cutting process.
Grades are divided into 11 grades, from "FL (flawless)" with no scratches or defects at all,
to those with inclusions visible to the naked eye.
Cut
- Excellent
- Very Good
- Good
- Fair
- Poor
Cut is the only element in which humans can be involved in the evaluation of a diamond.
The diamond is graded on a five-point scale based on ideal proportion, with the beauty of the polishing, technical cutting skill, and other factors being evaluated using a subtractive point system.
We can select the diamonds that best suit your tastes and preferences, or you may select the diamonds yourself.
A certificate of authenticity will be included with the diamond.
We offer a variety of diamonds to suit all budgets.
Triple Excellent
A diamond's cut grade is based on three factors: proportion (shape), polish (polish condition), and symmetry. Triple Excellent diamonds are diamonds that have been cut with the highest degree of precision and have received the highest rating of "Excellent" for all three elements. Because ith is a brand started by an artisan, we do not compromise but use only the finest diamonds cut by the skillful diamond cutters.
Hearts & Arrows
Among round brilliant cut diamonds, those that are finished with a certain level of symmetry show a pattern of eight arrows on the table side and eight heart marks on the culet side when viewed through a special scope. Diamonds that produce this pattern are called "Hearts and Arrows" (H&A), and are one indicator of a diamond cutter’s high level skill.
At ith, we also offer a special diamond called the Perfect H&A (Hearts and Arrows), which is evaluated from our own perspective. H&A is certified by domestic grading organizations in Japan, but there is a wide range of tolerance in the expression of patterns and considerable individual variation.
ith's Conditions of a Perfect H&A Diamond
When looking through a scope, all eight hearts and arrows appear immediately. No matter how many times you look through a scope, there will always be hearts and arrows without missing one piece. The shape of the pattern should be easily identified as hearts and arrows(in the case of arrows, ones with big arrowheads and short shafts will be inspected as a beautiful shape of arrows).
Shape The Shape of Diamonds
When we talk about diamonds, we usually mean round brilliant cut diamonds.
However, there are a wide variety of diamond/gemstone cuttings.
At ith, we take orders with the diamond shape of your choice.
You may express yourself through the shape of the gemstone.
From princess cut diamonds to hearts or marquises.
Please choose one according to your own preference
Grading Report
The following standards apply to diamonds handled by ith. A certificate of domestic grading organization is available upon request.
| Carat | 0.2ct〜 ※Except for Fancy Cut Diamonds |
|---|---|
| Cut | Excellent |
| Color | D~H |
| Clarity | IF~VS |
Propose Propose with a Diamond
For you, who want to propose to your partner with an engagement ring, yet don’t know the ring size.
To propose with a diamond may be the answer to such a problem.
By doing so, you may take your time to choose the ring design after the proposal has been successfully made.
The diamond proposal might be the ideal way for both of you.
