Butterfly Rings

Styles: classic, floating, eternity and emerald butterfly rings

Pick the style first, since each butterfly wears its own way. The classic pair, 70010 and 69780, set lab-grown stones as wings, and they took most of the year's sales. The Floating Butterfly keeps the gold open so the diamonds do the work. The Eternity Butterfly carries the most diamond, 2.60 carats. The Luxe mixes round pave with baguettes, and the Bloom rests its butterfly above intertwined bands. The 18K emerald ring sets a green stone between diamond wings.

Diamonds: lab-grown or natural butterfly diamond rings

Five rings set lab-grown diamonds. Grown and mined stones are the same diamond on one grading scale. Lab-grown puts a bigger stone on her finger, and natural is the rarer of the two. The Floating Butterfly is listed both ways, pear-cut lab-grown stones on 70218 and natural marquise stones on 70219. The Luxe and the emerald ring's side stones are natural too. Every ring names F color or a grade beside it, and five name VS1 clarity, white and clean to the eye.

Sizes: what sizes butterfly rings come in, up to 9

Size her from a ring she wears on that same finger, read by a jeweler. Six rings run 5 through 8 with every half size. Only the two Floating Butterflies reach 9, and only the emerald ring starts at 4. The Eternity Butterfly lists just 6.5 and 7, and with stones all round it cannot be resized, so order her exact size. The Bloom shows no size, so ask the live chat about her size before you pay. For any size not shown, the live chat will say if it can be made.

Gold: yellow, white or rose gold butterfly rings, 14K or 18K

Every ring comes in yellow gold, seven in white and four in rose, so match the gold she wears most. Seven are 14K, the harder gold for daily wear. The emerald ring is 18K, three quarters gold, a richer yellow that scratches sooner. The Eternity Butterfly is offered in yellow alone. White gold carries a rhodium coat that thins and is renewed every year or two.

Wear and buying: everyday butterfly rings, stacking and returns

For every day, take a light ring. The Luxe weighs 1.5 grams and 70010 weighs 1.75, against 6.8 for the emerald ring. Raised wings catch on knit, so take any butterfly off for the gym and the pool. It sits well on the right hand or beside a thin plain band. For her ears, see the butterfly earrings page. A ring still unworn and unaltered has fourteen days from delivery to return, after customer service clears it at service@traxnyc.com or 212-391-3832, on the store's return label. The refund loses the restocking fee, five percent, plus the return shipping, and a ring resized for her is final sale. Start with the live chat, then call or text 212-872-9692 from 10 AM ET.