search
  • 로그인
    가입하기
  • 영어를 구사하는 고객 지원만 가능

    1-800-464-1640

    국제적인:

    +66-39601289

  • 언어 변경
  • USD
  • 카트
무료 배송
Frequently Asked Questions (FAQ) / Calibrated Gemstones & Size Tolerance

I need a 7 mm x 5 mm gemstone for a standard setting. How much can gems vary in size and still fit standard calibrated mountings?

Calibrated Pear Shape Tsavorite Garnet As a general rule, gems weighing less than 1 carat can be within 0.2 mm of the calibrated size in order to fit a standard calibrated jewelry mounting or setting. This size variance calculation is only a guide and is based on the average size-to-weight ratio of a gemstone cut to standard proportions.

For gems weighing over one carat, typically a difference of 0.3 mm (+ or -) can be accommodated and sometimes more. Round stones allow for greater variance; in fact, it is usually possible to mount a round stone of any size in the closest standard setting. We recommend finding your replacement side stone or center stone through our calibrated gemstone page.

Do keep in mind, that a good jeweler can adjust rings and mountings to fit just about any gemstone that is reasonably close in size to that required; this applies for calibrated commercial jewelry in standard sizes, as well as custom jewelry featuring gemstones cut to exact size with unusual measurements. For example, peg head mountings can often give or take 0.5 mm. In addition, many jewelry designs feature interchangeable heads, which means your jeweler may be able to completely swap out the head and set a gemstone of your choice in any size or shape. If it is not a peg head mounting, jewelers can usually tighten or spread the prongs, and they can even add more material to the prongs and/or mounting to accommodate even more variance. For halo or bezel mountings, jewelers may be able to pinch, mould or spread material depending on the malleability of the material your gemstones are set in.

Return to FAQ HOME

STAY IN TOUCH | NEWSLETTER
*GemSelect 프로모션 이메일 수신을 신청하셨습니다..
파트너와 신뢰 결제 옵션

모바일 버전으로 전환

저작권 © 2005-2024 GemSelect.com 판권 소유.

GemSelect.com(SETT Company Ltd.)의 명시적인 서면 동의 없이 재생산(텍스트 또는 그래픽)하는 것은 엄격히 금지됩니다.

793

쇼핑을 계속
점검
쇼핑을 계속
점검