I-Gem, umphumela omuhle wemvelo, futhi singabathwali be-gem.D&T Trading Co., Ltd. izinikele ekuthuleni le ngcebo yemvelo enhle kakhulu eqinisekile kubo bonke abathanda ubuhle.
I-D&T ingelinye labakhiqizi abakhulu, besimanje kanye nabachwepheshile eWuzhou, abaneminyaka engaphezu kuka-20 yesipiliyoni sokukhiqiza, egxile kumagugu emvelo angaphezu kuka-30 njengerubi, isafire, ne-tsavorite.D&T ikakhulukazi ithekelisa emazweni angaphezu kwe-100 njenge I-India, iThailand, i-United States, i-Poland, ne-Switzerland, futhi izuze idumela elihle, Njengebhizinisi elihlanganisiwe eliyigugu elisuka ezintweni ezingavuthiwe kuya ekukhiqizeni, ekuthengisweni nasezinsizeni.