Every other gem in this journal was forged in the earth over millions of years. The pearl is different: it is the only gem grown by a living creature, needing no cutting or polishing to reveal its beauty. It arrives perfect — which is why pearls have symbolised purity for thousands of years, and why they remain the birthstone of June.
The main types of pearl
- Akoya — the classic: round, white, brilliantly lustrous. The pearl of timeless strands and studs.
- South Sea — the largest and most valuable cultured pearls, in white, silver and gold tones.
- Freshwater — versatile and accessible, in whites, creams and natural pastels.
- Tahitian — the famed "black" pearls, actually deep greens, silvers and peacock hues.
How pearls are judged
Five factors decide a pearl's worth: lustre (the sharp, mirror-like glow — the single most important factor), surface cleanliness, shape (perfectly round is rarest), size, and colour. A smaller pearl with superb lustre outshines a large dull one every time.
Caring for pearls
Pearls are organic and soft (2.5–4.5 Mohs), so they live by one rule: last on, first off. Put them on after perfume and cosmetics, wipe them with a soft cloth after wearing, and store them away from harder jewellery that could scratch them. Never ultrasonic-clean a pearl.
Pearls at Ministry of Gems
From pearl-and-diamond studs and chain drops to architectural pearl rings, our pearl pieces are designed and handcrafted in our own workshop. Explore earrings and fine jewellery, or ask us to source a pearl for a bespoke design.
Continue your gem education
Aquamarine Guide · London Blue Topaz · Birthstones by Month · browse all Gem Guides — or explore loose gemstones.