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关于全美钻石看到的一篇很有道理的文章

高中三年级 发布于 2014-07-10 14:09:40 回帖: 18 | 评论: 0 | 查看: -

我再给他加一点 反正大部分钻石resale会有 sharp haircut,所以其实 IF真的没啥意思 除非是 rare fancy diamond typeIIa important white diamonds

Three Good Reasons Not to Wear a Flawless DiamondFebruary 11th, 2009 by James L. Sweaney, CGA, FGA. GGRecently, I re-appraised a beautiful diamond ring and had some unsettling news for my client.

We had appraised this ring several years back, as is, with no documentation from the client. At the time, I could see no inclusions whatsoever at 10x in our GIA DL microscope, and the nice high color 3 ct. round had a faceted girdle with no bearding—tiny cracks common to the girdle (the outer edge) of round diamonds. I gave the center stone a clarity grade of VVS1, not Flawless or Internally Flawless—standard practice when appraising a mounted stone because you cannot observe all of the stone.

This time, my client informed me that she had a grading certificate, and sure enough, her GIA diamond report graded the stone as Internally Flawless. My original color grade and weight estimate agreed with the GIA document, so when I updated her appraisal, I increased the replacement value by about $7,000 to reflect the original GIA clarity grade. But there was a caveat.

First, I told my client that because she had worn the ring for a number of years, the chances were that it was no longer (Internally) Flawless! Also, that if the stone were now VVS1, its replacement value would be substantially less.
Her response was one we commonly hear, that diamond is the hardest substance so you can’t damage a diamond. I explained that even though diamond is extremely hard, it has grain, like a piece of wood, and can develop cracks along the grain. Because it had been subjected to the stress of years of daily wear, it was likely that GIA wouldn’t grade the stone Internally Flawless in its current condition. I couldn’t see any obvious feathers but the stone did show a few minor rubs along the facet edges of the table—evidence of wear.
Next, I told her that any diamond dealer worth his salt would know that since it had been worn, the stone would need re-grading by GIA before it could be sold as Internally Flawless. This would mean either additional time and cost for re-grading or taking a discounted price from a dealer, should she want to resell the diamond or trade up.

And finally, if it indeed had suffered some damage that penetrated into the stone, such as a small feather, and if she did want to restore the stone to Internally Flawless, the stone would have to come out of the ring for repair by a good diamond cutter, and then go to GIA for re-grading.

If the diamond in question weighed right on the carat mark, such as 2.00 or 3.00, a re-cut could be truly disastrous—a stone weighing 2.99 cts. would take a big hit in value, compared to a 3.00! In the diamond trade, diamonds are weighed to the 1/1000 of a carat and by tradition, are not rounded up. If a stone weighs 2.999, it’s sold as 3.00 but if it weighs 2.998, it’s sold as 2.99 cts. Big hassle, big bucks!

We sell lots of fine diamonds at Mardon, but rarely do we recommend a flawless diamond. Truth be said, the visual appearance of a flawless diamond when seen on the hand is not significantly better than that of a VVS, VS, or even a good SI diamond.

So, the lesson is – Don’t wear a flawless diamond if money means anything to you!
In our opinion, Color and Cut contribute much more to the visual beauty of a diamond than does Clarity. Unless you just want the satisfaction and bragging rights of owning a diamond with a flawless clarity grade, we suggest a wiser purchase—spend the same money to buy a VS clarity diamond of better color, bigger size, and/or nicer cut.

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1楼
大学三年级

So, the lesson is – Don’t wear a flawless diamond if money means anything to you!
这句哈牛

2楼

Color and Cut contribute much more to the visual beauty of a diamond than does Clarity,学到了

3楼
婴儿

This is good article

4楼
大学二年级 乐钻6cdiamond上海置地1106微RONNIE6340

有人就是喜欢小一点,净度高一点的,喜欢那种纯净的感觉,即使自己是没办法观察到的。我觉得各有所需,不需要去试图说服谁,也无关哪种说法更有道理。

5楼
副教授 微信 QQ =54675532 上海实体南京东路409号...

各取所好

6楼
大学一年级 上海置地广场904室(实体店)QQ2387913616

求翻译。。

7楼
小学一年级
引用4楼 有人就是喜欢小一点,净度高一点的,喜欢那种纯净的感觉,即...

说的挺好啊,科普文要赞一个,但我觉得不必太刻意吧,锱铢必较的人生还有什么意义呢。虽然俺没有IF的但是我觉得如果能拥有一颗无暇钻石获得心灵上的安宁的应该是很好的感觉吧

楼主
8楼
高中三年级
引用4楼 有人就是喜欢小一点,净度高一点的,喜欢那种纯净的感觉,即...

我觉得这篇文章是从客观角度分析。。 但人往往是有主观需求的。。所以主要还是个人取舍吧。。。

9楼
大学四年级 微信:WX584755731 天津钻石实体店

看晕了

10楼
高中一年级 微信号:barrychia

这个问题可以值得探讨。
不过IF要降到VVS1几率很小很小。反而FL到IF就会见到。所以现在GIA大多会评级IF而不评FL了。
dont choose if的前提是money means anything to u,但是如果means nothing to u的话,买IF就是个人喜好了。

11楼
硕士

这个应该发去英文版去 我们才疏学浅看不懂呀

12楼
幼儿园中班

英语不好的我,果断在线翻译,嘿嘿

三个很好的理由,不要穿一个完美无瑕的diamondfebruary第十一,2009由杰姆斯L.史威妮,CGA,FGA。ggrecently,我重新评估一个漂亮的钻石戒指,有一些令人不安的消息,我的客户。
我们已经评价了该环的几年后,如是,从客户端没有文件。当时,我看到不包含任何在10倍我们GIA DL显微镜,和很高的颜色3 CT。圆形无处微裂纹的常见的腰带有刻面腰围(外缘)的圆形钻石。我给中心石的净度VVS1,不是完美无瑕或内部标准的做法,当评价一个安装石,因为你不能遵守的石头。
这一次,我的客户告诉我,她有一个分级证书,果然,她GIA钻石分级报告石内部无瑕。我原来的颜色等级和重量估计同意与GIA的文档,所以当我更新自己的评价,我增加了重置价值约7000美元的反映了原始GIA净度等级。但是有一个警告。
首先,我告诉我的客户,因为她多年来戴戒指,那么,它不再是完美的(内部)!另外,如果石头现在是VVS1,更新价值将会大幅减少。
她的反应是一个我们经常听到,钻石是最坚硬的物质,所以你不能伤害一颗钻石。我解释说,尽管钻石是非常困难的,它有粮食,就像一块木头,可以开发沿晶裂纹。因为它已经进行的日常穿年的应力,这是可能的,GIA不级石头内部无瑕的当前状况。我看不到任何明显的羽毛,但也显示出了一些小摩擦石头沿磨损面边缘表的证据。
接下来,我告诉她任何钻石商人,他的价值会知道,因为它已被磨损,石头需要重新分级的GIA才可以作为内部无瑕出售。这将意味着额外的时间和成本的重新打分或从经销商以折扣价格,要她想转售的钻石或贸易。
最后,如果它确实已经遭受了一些损失,渗入石材,如小羽毛,如果她真的想恢复石内部无瑕,石头会出来的环的一个很好的金刚石刀具的修复,然后去GIA重新打分。
如果问题中的钻石的重量对克拉的标记,如2或3,再将能得到真正disastrous-a石重2.99克拉。将值一大打击,比3!在钻石贸易,钻石的重量为1 / 1000克拉的传统,不是围捕。如果一块石头的重量为2.999,这是3但是如果它重2.998出售,这是2.99克拉卖。大麻烦,大笔的钱!
我们出售的钻石地段好用,但是我们很少推荐一个完美无暇的钻石。老实说,视觉外观的一个完美无暇的钻石时,看到在一方面是不显着优于一个VVS,VS,或者甚至一个好的Si钻石。
所以,这个教训是–不穿一个完美无暇的钻石如果钱意味着什么!
在我们看来,颜色和切割的钻石有更多比视觉美确实清晰。除非你想拥有一个完美的钻石净度的满意度和自夸的权利,我们建议一个明智的购买花同样的钱买更好的色彩,更大的尺寸与清晰的钻石,和/或更好的切割。

楼主
13楼
高中三年级
引用10楼 这个问题可以值得探讨。 不过IF要降到VVS1几率很小...

不过真的好多人都和我说我要买IF的 我原来给一家珠宝公司做IPO 他们COO就和我说不要买IF

14楼
高中一年级 微信号:barrychia
引用12楼 英语不好的我,果断在线翻译,嘿嘿 三个很好的理由,...

这翻译。。。

15楼
高中一年级 微信号:barrychia
引用13楼 不过真的好多人都和我说我要买IF的 我原来给一家珠...

因为无论从投资还是实用角度看,普通的钻石,IF和VVS没什么差别。净度上面,也就多那一点点肉眼看不见的针点而已。

16楼
小学三年级 有需要鉴定绿松石的朋友可加微信 411544153

看不懂。。。。。

18楼
大学三年级

翻译的看上去好像不太对,不通顺

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