Kohl containers

This is a Fatimid rock crystal Kohl container, made between 939–1010 C.E. The jar would have had a glass rod in it, to apply the Kohl, which was made out of burnt frankincense, almond shells or Safflower plants. This is a Mamluk ivory inlaid with niello Kohl container, made between the 14th–15th century. The applicator was attached by chain. This is an Ottoman cast silver Kohl bottle. It is dated to 1594 C.E. and was hammered and incised. The applicator stick was attached to the bottle with a chain, through the “tail” of the bird.

Taken from Museum With No Frontiers website.

Ottoman chess pieces

This Ottoman rock crystal chess set is from 16th-17th century. They are stylised, as opposed to Western chess pieces. The height of the king is 40 cm, with one side set with table cut rubies (from Afghanistan or Burma) and the other with emeralds (possibly from the New World), held to the crystal in a lobe mount. Information from Qantara but the set is in the Topkapi Sarayi Museum.

Rock crystal pieces

This is a rock crystal lion, made in the 11th century in Fatimid Egypt. The length is 6.03 cm and the height is 4.45 cm. It also has a hollowed out core, meaning that perfume or cosmetics was probably stored in it. The lion represents the ruling Fatimid family, so this piece was likely used by them. It is currently in the British Museum.
This rock crystal ewer is in the Louvre. Made in the 10th century, it was part of the Treasure of the Abbey of St. Denis. This ewer is carved with the Tree of Life, with a kufic inscription around the rim of the spout saying “Blessings and satisfaction to its possessor”. The height is 24 cm and diameter 13.5 cm. The escutcheon lid was made in Italy in the 11th century out of filigree gold.Images from Wikipedia.
Bibliography
Ewer of Saint-Denis on Qantara.
Two Rock-Crystal Carvings of the Fatimid Period by A. H. Christie. JStor article.
“Haft Qalam Ārāyish”: Cosmetics in the Iranian World by Fatema Soudavar Farmanfarmaian. JStor article.
Some Crystals of the Fatimid Period by M. H. Longhurst. JStor article.
Some Rock Crystals of the Islamic Period by R. H. Pinder-Wilson. JStor article.
Fountains of Light: The Meaning of Medieval Islamic Rock Crystal Lamps by Avinoam Shalem. JStor article.

Rock crystal chess pieces

This set is carved from rock crystal in Egypt in the 10th century. The set is incomplete as pieces were carved according to the crystal available, but the pieces are 2.5–4.5 cm high, 1.9–3.1 cm long with a width of 1.8–3 cm. Taken from Qantara.

From Egypt it was exported to Spain, where it ended up in the Collegiata de Àger (via Google Translate). The set has three queens, three bishops, two knights, a castle, ten pawns, and a rook in the shape of a molar.

This rook is in the Al Sabah Collection in Kuwait (go to the Jewellery and jewelled objects collection). However, this piece is 4.22cm high & 4.75cm wide and thought to be from Iran in the 9th-10th century.
Suggested Reading
Pieces Crystal and Osnabruck Set on Carolus Chess.

Egyptian rock crystal

This ewer is one of only six known Fatimid ewers to have survived. It turned up at a country auction as a French claret jug, and was expected to have sold for £100-200, but sold for £220,000 to an anonymous buyer. This buyer then sold it at Christies for £3 million ($5.3 million).
At 7.1cm high, it is a four-footed or molar flask. This shape is very common for perfume bottles, though usually made of glass.  Sold by Christies for £25,000 ($38,350).
This is a 4cm high pot on a special foot (broken) with a missing lid. Sold by Christies for £3,500 ($5,390).

This Abbasid bottle is 6.4cm high from 9th century Mesopotamia. It sold for £46,850 ($73,976) at Christies.
Bibliography
Elite Choice- Fatimid Rock Crystal Ewer To Fetch $5.3 million at Christie’s Sale.
The Ios Minaret- Medieval Islamic ewer sold for over £ 3 million.
Literary Reading- Fatimid Rock Crystal Ewers, Most Valuable Objects in Islamic Art.