925 スターリングシルバーネックレスファインジュエリーカスタムOEM工場

925 スターリングシルバーネックレスファインジュエリーカスタムOEM工場
925 スターリングシルバーネックレスファインジュエリーカスタムOEM工場

ジュリエットの有名なセリフを聞いたことがあるでしょう。, 「どんな名前のバラでも、同じように甘い香りがするでしょう。」しかし、同じことがダイヤモンドにも当てはまりますか? あなたが見ているダイヤモンドには、G/VS2 品質の石であると記載された書類が付属しているとします。. それで十分ではないでしょうか? 良い, 場合によります. 完璧な婚約ダイヤモンドを探しているとき, ダイヤモンドの証明書を発行する宝石研究所を何十件も見たことがあるはずです。. しかし, すべての宝石ラボは平等に作られていますか? 答えは断固としたノーです.

下に, について学びます:

ダイヤモンド認定とは
ダイヤモンド認定が重要な理由
ダイヤモンド認定が価値に影響を与える場合
ダイヤモンド証明書の発行者
すべてのダイヤモンド認定が等しい場合
3 GIA ダイヤモンドが本当に欲しい理由
注記!! この投稿は天然ダイヤモンドのダイヤモンド証明書についてです。. Learn here about Lab Diamonds vs Natural Diamonds – and why we chose GCAL and IGI USA for Lab Diamonds.

 

ダイヤモンド認定とは?
An independent, scientific analysis of your diamond’s quality.
Appraisals and jeweler-written documents are not certifications!
Diamond certification is a process where an independent gem lab (one that’s not in cahoots with the jeweler!) tests and assesses the quality of a diamond. それから, the lab issues a written report about the diamond. Each report, or “certificate,” has its own number which is kept on file at the gem lab and a copy is sent back with the diamond. また, many certified diamonds include a microscopic laser inscription of their certification number on the outer edge of the diamond (its “girdle”). This is helpful if a diamond certificate is ever lost or stolen.

loose diamond with inscription on edge of diamond
GIA Number Laser Inscribed on the Girdle of a Loose Diamond.

MOST DIAMOND CERTIFICATES INCLUDE THE FOLLOWING GRADING CATEGORIES:
Natural or Lab Created Status
色
カット
明確さ
カラット重量
Some diamond certificates will include a diamond “plot.” A plot is a drawing of the internal marks (or “inclusions”) ダイヤモンドの. 言い換えると, this is your diamond’s fingerprint! Others do not include plots, to save time. 加えて, certain gem labs include their opinion of the diamond’s value. Other labs refuse to value the diamonds they test, preferring to keep their reports impartial.

ヒントの場合! Appraisals and other documents written by a jeweler are NOT diamond certificates. Most jewelers and appraisers do not have access to the testing equipment gem labs have. それで, 評価, or the word of your jeweler, cannot take the place of a diamond certification.

 

Why is Diamond Certification important?
Diamond certifications are important for three big reasons. まず最初に, a diamond certification proves the stone has been tested and has been confirmed natural. 第二に, credible diamond certifications (more on that below) prove diamond quality. 第三に, diamond certifications help to put a diamond buyer and a diamond seller on equal ground.

DIAMOND CERTIFICATION PROVES IT’S NATURAL
Gem labs have access to a bunch of testing equipment that jewelers and appraisers do not. 例えば, while most appraisers have common tools, they typically do not have a way of testing for lab created diamonds or diamond treatments. それで, a diamond certification proves the stone you’re buying is natural and not lab made.

DIAMOND CERTIFICATION PROVES QUALITY
Diamond certifications are important as they are unbiased opinions of diamond quality. Grading between different jewelers and appraisers varies wildly. 比較して, gem labs have consistent diamond grading techniques. 言い換えると, reports generated by jewelers and appraisers do not have the accuracy or trustworthiness of diamond certifications.

As we discuss in more detail below, some gem labs are more strict than others in these guidelines. The best diamond certifications, those we call “credible” diamond certifications, honestly and accurately describe the quality of your diamond. それで, a credible diamond certificate is the best way to get what you pay for.

DIAMOND CERTIFICATION LEVELS THE PLAYING FIELD
Diamond certification also helps diamond buyers and sellers compare diamonds. 重要です, したがって, that the diamond certificate you choose is credible. It is a diamond expert’s job to know the “ins and outs” of diamond quality. 一方で, most diamond buyers are new to diamond grading. それで, customers use diamond certificates to level the playing field. As small differences in diamond grading can make hundreds or even thousands of dollars’ difference, the credibility of a diamond’s certification is huge.

Hot tip! In addition to helping you choose a beautiful diamond for your engagement, making sure you choose a credible diamond certification will help you later if you and your partner ever choose to upgrade your diamond for a special anniversary, or gift it to your children. 信頼できるダイヤモンド証明書により、他の人は自分が何を手に入れているかを正確に知ることができます!

 

GIA 証明書の上に丸いダイヤモンド
GIA鑑定書付きダイヤモンドルース.