GIA GIA Diamond Care, Maintenance & Consumer Education 1 — Questions and Answers
Question 1: Which household substance can damage a diamond ring over time by slowly eroding the metal setting and prongs?
- Plain water
- Chlorine bleach and chlorinated pool water (Correct answer)
- Mild dish soap
- Warm steam from a home steamer
Correct answer: Chlorine bleach and chlorinated pool water
Chlorine can weaken and corrode gold alloys and platinum over time, increasing the risk of prong failure and stone loss.
Question 2: A GIA-educated consumer should be advised to have their diamond ring professionally inspected and cleaned approximately how often?
- Every 5–10 years
- Once every 6–12 months (Correct answer)
- Only when a stone appears loose
- Every 3–5 years
Correct answer: Once every 6–12 months
GIA recommends annual or semi-annual professional inspections to check prong integrity and clean hard-to-reach areas of the setting.
Question 3: What is the safest home cleaning method for a diamond ring recommended by GIA-trained jewelers?
- Soaking in undiluted ammonia overnight
- Gently scrubbing with a soft toothbrush in warm water with a small amount of mild dish soap (Correct answer)
- Using a commercial abrasive jewelry cleaning paste
- Wiping with a dry paper towel to remove surface oils
Correct answer: Gently scrubbing with a soft toothbrush in warm water with a small amount of mild dish soap
Warm soapy water with a soft brush effectively removes oils and dirt without risking damage to the metal or stone.
Question 4: Why should diamond jewelry be removed before engaging in activities such as gardening, weight lifting, or rock climbing?
- Physical activity causes diamonds to lose their polish permanently
- Impact and abrasion can chip the diamond and physical force can bend prongs, loosening the stone (Correct answer)
- Sweat chemically reacts with diamonds to alter their clarity grade
- These activities cause thermal expansion that can crack the diamond
Correct answer: Impact and abrasion can chip the diamond and physical force can bend prongs, loosening the stone
Though diamonds are extremely hard, they can chip along cleavage planes upon sharp impact, and physical stress can deform prongs.
Question 5: What does a GIA-trained professional check for when inspecting prongs on a customer's ring?
- Whether prongs match the color of the diamond's fluorescence
- Whether prongs are worn thin, bent, chipped, or have slipped below the girdle of the stone (Correct answer)
- Whether prongs are pointing in the correct cardinal directions
- Whether the number of prongs matches the weight of the diamond
Correct answer: Whether prongs are worn thin, bent, chipped, or have slipped below the girdle of the stone
Worn, bent, or displaced prongs are the leading cause of diamond loss in rings and must be identified and repaired promptly.
Question 6: A customer asks whether ultrasonic cleaners are safe for all diamond jewelry. What is the correct guidance from a GIA perspective?
- Ultrasonic cleaners are universally safe for all diamonds and settings
- Ultrasonic cleaners should not be used on stones with fracture fills, treated diamonds, or fragile vintage settings (Correct answer)
- Ultrasonic cleaners are only safe for diamonds under 1 carat
- Ultrasonic cleaners are recommended only for yellow gold settings, not platinum
Correct answer: Ultrasonic cleaners should not be used on stones with fracture fills, treated diamonds, or fragile vintage settings
The vibrations in ultrasonic cleaners can dislodge fracture fill treatments, loosen stones in fragile settings, and damage certain diamond treatments.
GIA GIA Diamond Care, Maintenance & Consumer Education 1
Which household substance can damage a diamond ring over time by slowly eroding the metal setting and prongs?