The Diamond you receive will be exact color, clarity and cut. The only difference could be the IGI certificate which might differ from the listed stone. IGI Lab is the 2nd most reputable & trustworthy Lab after GIA.
7.23 ct Fancy Cabochon (14 x 13 mm) Multi Color Australian Koroit Boulder Opal
Gem Type Boulder Opal. Shape Fancy Cabochon. Rare Stone! 100% Natural Multi Color Orgin From Australia. Weight 7.23 ct. Color Multi Color. Size(LxWxD) 14.13 x 13.21 x 4.17 mm. 100% Natural Genuine Mined from Earth Gemstone!
5.36 ct Marvelous Fancy (14 x 13 mm) Multi Color Australian Koroit Boulder Opal
–> 5.36 ct Marvelous Fancy Shape (14 x 13 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone Rare Stone! Unheated / Untreated Multi Color Orgin From Australia 100% Natural Genuine Mined from Earth Gemstone!!! Gem Type Boulder Opal Color Multi Color Shape Fancy Size(LxWxD) 14.13 x 12.66 x 3.34 mm Weight 5.36 ct Hardness 6.5 Luster Excellent Clarity Translucent Treatment: Unheated / Untreated Origin Australia RefractiveIndex 1.37-1.47 Specific Gravity 2.1 Clarity Scale IF VVS VS SI I1 Internally flawless; free of inclusions Very, very slight inclusions; inclusions barely seen under 10x magnification Very slight inclusions; inclusions can be seen under 10x magnification Slightly included; small inclusions seen by naked eye Included; inclusions seen with naked eye Track Page Views WithAuctiva’s Counter
7.69 ct Triangle Cabochon (15.00 x 14.13 mm) Ethiopian Flashing Black Opal Stone
7.69 ct Eye-catching Triangle Cabochon (15 x 14 mm) Ethiopian 360 Degree Flashing Black Opal Natural Gemstone. History – Opal is a semi-transparent solidified mineral composed of silicon and water. Black Opal refers to the dark background color of the stone behind the play of color.