الماس المزروع في المختبر VS VVS الصف A HPHT

Specification of Lab Grown Diamond Code # Grade Carat Weight Clarity Size 04A A 0.2-0.4ct VVS VS 3.0-4.0mm 06A A 0.4-0.6ct VVS VS 4.0-4.5mm 08A A 0.6-0.8ct VVS-SI1 4.0-5.0mm 08B B 0.6-0.8ct SI1-SI2 4.0-5.0mm 08C C 0.6-0.8ct SI2-I1 4.0-5.0mm 08D D 0.6-0.8ct I1-I3 4.0-5.0mm 10A A 0.8-1.0ct VVS-SI1 4.5-5.5mm 10B B 0.8-1.0ct SI1-SI2 4.5-5.5mm 10C

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What is a Diamond Type IIa?

Also known as a diamond type 2a diamond, a Type IIa is one of four diamond classifications. Around 1-2% of all diamonds are classified as Type IIa (or 2a). These gems are purely, or almost purely carbon, and are considered to be the purest and most valuable of all. Type IIa diamonds have zero or

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What is the difference between natural diamonds and laboratory-grown diamonds?

If you put lab-grown CVD, HPHT, and natural diamonds in front of everyone's eyes, they are equally crystal clear, full of fire, and look exactly the same. لكن, natural diamonds are formed over a billion years or more, while cultivated diamonds are formed in units of days. Natural diamonds are formed by forces deep within

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الترجمة المهنية Diamond 4C

وزن الماس: 5.02ct The carat is the international standard unit of measurement for diamonds and gemstones, مع 1 قيراط يساوي 200 ملليغرام أو 0.2 جرامات. يستخدم وزن القيراط حصريًا لحساب وزن الماس, ووزن القيراط وحده لا يمكن أن يعكس بدقة الحجم المرئي للماس. We recommend considering carat weight along with

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10 small steps to teach you to understand the GIA certificate of cultivated diamonds

Lab-grown diamonds are called lab-grown diamonds, which means diamonds grown in a laboratory. في الوقت الحالي, two common production methods are usually used in the entire lab-grown diamond market: HTP (ارتفاع في درجة الحرارة وضغط مرتفع) والأمراض القلبية الوعائية (ترسيب الأبخرة الكيميائية). ), although cultivated in the laboratory, the principle is the same as that of natural diamonds. …

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