钻石直径是越大越好吗？

zuanshizhijingyueda，kanqilaichicunjiuyueda，zaizhiqiandexuangouzhinanzhong，womenyibanjianyixiangtongzhongliangdezuanshixuanzezhijinggengdadeneiyike，danbingbushirangdajiamangmuzhikanzhijing，haixuyaojieheqiegongdengji。

zuanshiqiegongfenweiwugedengji，conggaodaodiyiciweiexcellent（ex,lixiang）、very good（vg,henhao）、good（gd,hao）、fair（f,yiban）、poor（p,cha）。

切工对钻石直径有一定影响，以一克拉为例，通常情况下（有特例）：

EX等级的直径是6.35-6.50mm；

VG等级是6.20-6.35mm；

GD等级是6.00-6.20mm；

F等级的是5.80-6.00mm；

钻石直径是不是越大越好，前提是要看切工等级如何：

1、ruguoshi3exqiegongdeyuanzuan，zuanshizhijingyuedayuehao。

yinwei3exqiegongyijingbazuanshideqiegebilishujusuodingzaiyidingfanwei。biruyikeladezuanshi，wulunzhijingshi6.35mm，haishi6.5mm，douhuichengxianchujiaohaodehuocaixiaoguo，jibenmeiyouqubie。neimezaizheizhongqingkuangxia，ziranshizuanshidezhijingyuedayuehao。

2、ruguoshi3vgyixiaqiegong，zuanshizhijingbukeguoda

yi1kelazuanshiweili，ruguozuanshideqiegongdengjizai3vgyixia，jiuyaojinliangbazhijingkongzhizai6.1mm-6.5mmzhijian，erruguoweilezengjiazuanshizhijingerbazuanshiqiedetaibian，jiuhuiyingxiangdaoguangxiandeyunxing，congeryingxiangzuanshihuocai。

zongdelaishuo，3vgyishangqiegongdezuanshi，zhijingyuedayuehao，ruguoyouzhijingchaoguo6.5mmjibenjiukeyibiyanrule。er3vgyixiaqiegongdezuanshi，jiubunengyiweidizhuiqiudazhijing，zuihaojiangqikongzhizai6.5mmyinei。