How do I compare two silver diamond pendants with the same stone size?

ZKZ Editorial TeamMain answer · Product & gemmology desk

Compare the parts around the stone as carefully as the stone itself: the setting and how it holds the stone, the bail and chain, the metal weight and finish, the stone's report and grades, and the seller's terms. The same stated stone size can hide differences in all of these.

1. The stone

• Weight and size. Ask for the exact weight and the diameter or length in millimetres. A "0.5 ct" label may be rounded, and the FTC Guides expect a decimal weight to be accurate to the last decimal place, and a fractional weight to come with a range (16 CFR 23.18).
• Origin wording. Both listings should say "laboratory-grown" next to "diamond".
• Grades and report. Compare colour, clarity and cut details, and the laboratory that issued them. Stones with no report are harder to compare.

2. The setting

• Type. Prong, bezel or other. A bezel covers more of the stone, while prongs show more of it and need checks.
• Prong count and thickness. Four thin prongs and six thicker ones will behave differently.
• Back. An open back lets in light and is easier to clean, while a closed back is sturdier.

3. The bail and chain

• Bail size. A small bail suits a thin chain, and a large one suits a thick chain. If the bail is too small for the chain you want, you will have to buy a different chain.
• Chain. Check the length, the style, the clasp and whether it is included. A heavier chain costs more.
• Total weight. Ask for the weight of the metal in grams, if available.

4. The metal and finish

• Fineness. "925 sterling silver" is specific, and "silver tone" is not.
• Plating. What it is, how thick, and how it can be renewed.
• Finish quality. Look at close-up photos for rough edges and uneven polishing.

5. The seller

• Returns and warranty. Compare the terms and what is excluded.
• Delivery and packaging. Check the time, insurance and gift options.

A table you can copy

Write each item for each pendant in two columns: weight, size in mm, origin wording, report, colour and clarity, setting, bail, chain, metal, plating, return policy, delivery. Fill every cell before comparing the price.

It depends The cheaper pendant is not a bad choice if the main details match, and the dearer one is not a better choice if it only has more adjectives. What matters is what you get for the price.

Uncertain We cannot say which is better without seeing the pieces, and photographs can hide differences.

Related reading: Lab Grown Diamond Pendants: Solitaire, Halo and Bezel Styles · Silver Pendants: Shapes, Sizes and Chain Pairing

Sources

• 16 CFR 23.18, FTC Jewelry Guides: misrepresentation of weight and "total weight"
• FTC, In the Loupe: Advertising Diamonds, Gemstones and Pearls
• GIA 4Cs, Nine things about diamond carat weight

Fact = stated by the cited source. Our advice = editorial recommendation. Uncertain / it depends = limits of what can be said in general.