This rare twinned diamond crystal is not only stunning, but is also rather thick at 4.2 mm in thickness, to have such clarity. It is twinned in a formation called "macle twinning", more common in spinels and quite rare in other gem species. The result is that instead of looking octahedral, it looks like a sharp triangle. It is exceptionally clean throughout, with only a few extremely slight carbon inclusions; and you could call it gemmy and literally mean "gemmy" when you say it. The triangular form is unusually equant for a stone of this size, and it "looks" naturally cut. In fact, a recent vogue in jewelry is to wear such natural diamonds in fancy settings, without cutting and faceting them. This could be one such showpiece, if mounted in a setting. It certainly is the biggest diamond of any quality that I have seen for available on the open market as a specimen in the 3 years or so since I last had one of these crystals. The specimen is 9.94 carats.
Omistamine: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
Tohid:
jagada – teost kopeerida, levitada ja edastada
kohandada – valmistada muudetud teoseid
Järgmistel tingimustel:
omistamine – Pead materjali sobival viisil autorile omistama, tooma ära litsentsi lingi ja märkima ära, kas on tehtud muudatusi. Sobib, kui teed seda mõistlikul viisil, kuid seejuures ei tohi jääda muljet, et litsentsiandja tõstab esile sind või seda, et sina materjali kasutad.
sarnaselt jagamine – Kui töötled, kujundad ümber või arendad materjali edasi, siis pead oma töö levitamiseks kasutama sama litsentsi, mille all on algupärand, või ühilduvat litsentsi.
See teos on kõigile soovijatele igaks otstarbeks vabalt kasutatatav. Kui sa soovid seda sisu taaskasutada, siis ei pea sa selleks eraldi luba küsima kuni jälgid siin lehel väljatoodud litsentsitingimusi.
Luba selle teose kasutuseks neil tingimustel on arhiivitud Wikimedia süsteemis, kus selle on üle vaadanud selleks usaldatud kasutajad. Selle teose sedel on usaldatud kasutajatele kättesaadav kui #2010022810018255.
== {{int:filedesc}} ==
{{Information
|Description=
{{en|1=Diamond
:: Locality: South Africa ([http://www.mindat.org/loc-14468.html Locality at mindat.org])
:: Size: thumbnail, 1.5 x 1.5 x 0.4 cm
::;Diamond (Macle twinned)
:: Thi
== {{int:filedesc}} ==
{{Information
|Description=
{{en|1=Diamond
:: Locality: South Africa ([http://www.mindat.org/loc-14468.html Locality at mindat.org])
:: Size: thumbnail, 1.5 x 1.5 x 0.4 cm
::;Diamond (Macle twinned)
:: Thi