Lama Jewelry's gold jewellery sets are sold as single listings, each with its own SKU, one weight in grams and a karat written into its name: 18K or 21K. Weight is what separates them most, and it is the first figure to compare when a set is chosen as a gift or for an occasion.
The 18K sets are the lighter pair: the 18K Romanian Engrave chain set at 6.19 grams and the 18K Flat Chain set at 7.88 grams. The 21K sets both carry blue strips and weigh far more: the 21K Romanian Goddess bangle and ring set at 24.4 grams and the 21K Square Unique set at 37.49 grams.
The heaviest set listed weighs about six times as much as the lightest, a gap of more than 30 grams, so the listed weight says more about how substantial a set will feel than its photo does.
If the set is a present, keep the original invoice with it. The store's written exchange terms for gold accept an exchange only with the invoice or proof of purchase, only for an unused item in its original packaging, and only once per item, so the invoice needs to travel with the gift. To check a detail the set's page does not give, such as sizing, use the store's phone numbers and map before you buy.
It depends on the design. On the Lama Jewelry product pages, set weights run from 6.19 grams for the 18K Romanian Engrave chain set to 37.49 grams for the 21K Square Unique set with blue strips. Each set shows one listed weight beside its SKU, so compare those figures directly rather than relying on a typical weight for sets in general.
Yes, as long as the original invoice, or another proof of purchase, travels with it. Lama Jewelry's exchange policy also asks that the set be unused, still in its original packaging, and exchanged no more than once. During the first week it can go toward a gold item of equal value; later, its value is worked out from the market rate for gold on the day, minus production costs and minus any stone weight.
The 18K Flat Chain set, listed at 7.88 grams under SKU LJ-DW3T039XFJCZ, is called lightweight on its own product page, which suggests it for daily wear or for occasions such as weddings and parties. The two 21K sets, at 24.4 and 37.49 grams, are far heavier, and the Romanian Goddess set's page pitches it as an occasion piece meant to stand out.
Both 21K sets. The Square Unique set with blue strips is listed at 37.49 grams under SKU LJ-UVOVXERTXF16, and the Romanian Goddess set, whose name also mentions a bangle and a ring, at 24.4 grams under SKU LJ-ZNIWOFMW8BD6. The pages do not say what the blue strips are made of, so ask the store before you choose.