Are your natural diamond studs GIA graded?

GIA graded natural studs are available with an individual GIA report for each diamond. Other pairs are carefully matched and selected by eye.

What backs do the studs have?

Screw backs, for maximum security in the ear.

Can I customise a natural diamond piece?

Yes. Most pieces can be made to your preferred size, metal and style.

Do you deliver outside Queensland?

Yes. Australian orders go by Australia Post Express with tracking, transit insurance and signature on delivery.

Natural diamonds

Natural diamond jewellery

Studs, tennis bracelets, pendants and necklaces, with carefully matched natural diamonds.

By the CTJ Jewellery team, led by founder Greg Ward · Updated September 2026 · Editorial policy

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Key facts

Natural studs from $2,900 a pair (1.00ct TDW)
GIA graded pairs with a report per diamond
Screw backs for security in the ear
Tennis bracelets in white, yellow or rose gold
Solitaire, halo and custom pendants
Insured delivery Australia-wide

Natural diamond stud earrings

Each pair is carefully matched for colour, clarity and size, in a range of carat weights and precious metals. All studs are made in a screw-back style for maximum security.

Diamond stud earrings

Natural diamond tennis bracelets

Carefully matched natural diamonds in white, yellow or rose gold, selected or custom made for sparkle, durability and comfort. A popular milestone gift.

Diamond tennis bracelets

Natural diamond pendants and necklaces

Solitaire, halo and custom pendants, plus tennis necklaces, in a range of shapes, lengths and metals.

Necklaces and pendants

What does TDW mean on diamond jewellery?

Total diamond weight: the combined weight of every diamond in the piece. A 1.00ct TDW pair of studs is two diamonds of about 0.50ct each.