Eggs, hearts and carved stones: shapes, materials and care

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Eggs, hearts, turtles, moons or hands: carved stones are shaped on a grinding wheel. Materials, uses, care and the differences between hand-cut and moulded pieces.

Key points

Definition	Stone cut into the shape of an object (egg, heart, animal, symbol)
Common materials	Rose quartz, jasper, agate, aventurine, obsidian, labradorite, selenite
Common sizes	From 2 to 8 cm
Method	Grinding and polishing, by hand or by machine
Pitfall	Resin, moulded glass, dyed or reconstituted stones
Use	To hold in the hand, to place, to give

What is a carved stone?

A carved stone is a stone to which a lapidary has given a precise form: egg, heart, turtle, moon, hand, star, flattened sphere, tree. The raw stone is first sawn, then ground by hand or with machines, and finally polished. Part of the production comes from specialist workshops where cutting is a craft passed down from generation to generation: the German town of Idar-Oberstein, long a centre of stone cutting, is often cited, as are India (Khambhat), Brazil and Madagascar.

This page is part of the guide to crystal shapes. It presents the rounded forms that are easy to hold in the hand; spheres have their own page, here.

Eggs, hearts and other shapes: what each evokes

The egg: birth, beginnings, potential. The form is smooth, without angles, and sits well in the palm.
The heart: love, friendship, affection. It is the most often given shape, for example in rose quartz.
The turtle, the elephant: longevity, patience, luck, depending on the culture.
The flat palm-shaped stone: a smooth surface for the thumb, useful as a comfort stone (see pocket stones).

These meanings are cultural and symbolic. A stone heart does not make anyone happier or more in love: it is a gift charged with intention, whose value lies above all in the attention of the person who gives it.

Common materials and their durability

Stone	Hardness (Mohs)	Care
Rose quartz	7	Lukewarm water, mild soap; avoid prolonged sun, as the colour can fade
Jasper, agate	6.5 to 7	Lukewarm water, soft cloth
Aventurine	6.5 to 7	Easy to care for
Obsidian	5 to 5.5	Avoid knocks
Labradorite	6 to 6.5	Avoid knocks and sudden temperature changes
Selenite	2	No prolonged contact with water; scratches under a fingernail

Whatever the stone, avoid falls onto a hard floor: a heart or an egg chips or breaks easily on tiles.

How to use them

To hold in the hand: a smooth egg or heart, kept in the palm during a calm moment. The temperature and smoothness of the stone have a soothing effect simply because you focus on a sensation.
On a desk or bedside table: a decorative object, which you look at or touch as you pass by.
As a gift: a small rose quartz heart or a jasper egg: simple, durable and not too expensive gifts.
With a candle: place the stone well away from the flame, never on a hot surface (some stones are at risk of thermal shock).

Recognising a genuinely carved stone

Resin or painted plaster: lighter than stone, they scratch under a fingernail and feel warm to the touch.
Moulded glass: small bubbles, a very regular surface, identical motifs from one piece to the next.
Reconstituted stone: stone powders bound together with resin, sometimes offered as “compressed natural stone”. It is often lighter and shows no natural veining. This is not fraud if it is stated; it is a lack of information if it is not.
Dye: overly vivid blues or pinks on agate or quartz, colours that collect in the cracks.
Hand-cut work: small differences in shape from one piece to another are normal and even reassuring.

More detail in our page on real or fake stones.

Choosing your piece

Ask yourself three questions. What will it be used for (gift, decoration, object to hold)? Is the stone hard enough for what you want to do with it? And does the weight suit you? An egg 5 cm long in quartz weighs about 100 g; a flat 4 cm heart in a dense stone weighs about 60 to 80 g. Choose a polished finish for objects to hold, and a matt or rough finish for decoration.

Carved pieces are in the points, spheres and figurines section.

Giving a carved stone: a few tips

A carved stone is a pleasant gift because it can be touched, kept and passed on. To make it a pleasure to receive, pay attention to three details. First, the presentation: a small box, a fabric pouch or a wooden stand stops it from rolling about or getting scratched. Next, a short card that names the stone, its origin if you know it, and a care tip: this shows your thoughtfulness and reassures the recipient. Finally, the intention: simply say what the stone represents for you (gentleness, a memory, encouragement) without promising any effect.

For a young child, avoid pieces that are too small and could be swallowed: a stone under 3 cm presents a choking risk. For someone who travels, prefer a hard stone (quartz, jasper) that will withstand a bag and pockets. Our page which stone to give offers more ideas by occasion.

Frequently asked questions

Is a rose quartz heart a good gift?

Yes, it is a classic gift: durable, easy to care for and long associated with tenderness. Just make clear that this is a symbolic meaning and not a power.

How do I clean a stone egg?

With a soft cloth and lukewarm water if the stone is hard (quartz, jasper). For a soft stone (selenite), a dry cloth is enough.

Are carved shapes less “genuine” than raw stones?

No. The stone remains the same; only its shape has been worked. The only point of attention is the material: natural stone, reconstituted stone or resin.

Can I put a stone egg in the freezer or near a flame?

No. Some stones crack under sudden temperature changes. Keep them at room temperature.

What size should I choose to hold in the hand?

Between 4 and 6 cm for an egg or a heart: large enough to be felt, small enough to fit in the palm.