by Richard W. Hughes
Red Rain • Mozambique Ruby

Is the Mozambique stone the bejesus of bird's blood? Lotus Gemology's resident ruby wallah, Richard Hughes, weighs in on the state of the market and how Mozambique stacks up to historical heavyweights like Burma and Thailand/Cambodia.

Read More
by E. Billie Hughes, Chawalit Chankhantha, Andreas Burkhardt, Wimon Manorotkul & Richard W. Hughes
Padparadscha or Pretender • An Unusual Pink-Orange Sapphire

An orangish pink “padparadscha” sapphire was submitted for testing at Lotus Gemology’s Bangkok laboratory. Testing showed a number of conflicting features that suggested the gem was a cleverly treated synthetic pink sapphire designed to imitate natural padparadscha.

Read More
by Lotus Gemology
Gem Inclusion Pairs • Hyperion Siamese Twins

Why should Hugh Hefner be the only one to enjoy twins? This special Hyperion Inclusion Gallery features images from the Lotus Gemology Hyperion Inclusion Database, but are shown as pairs, all the better to compare one form of beauty with another.

Read More
by Richard W. Hughes
Jade Buying Guide • LotusGemology.com

This article discusses the factors that influence quality and what to look for when buying both jadeite and nephrite. A list of jade auction records is also included.

Read More
by John I. Koivula & Richard W. Hughes
Fiber-Optic Light in Gemology • Living in the Dark Ages

The role of fiber-optic lighting in gemological microscopy.

Read More
by Richard W. Hughes
Ruby, Sapphire & Spinel Auction Records • Under the Hammer • Lotus Gemology

World auction records for ruby, sapphire and spinel.

Read More
by Richard W. Hughes
Ownership of Words  |  An Essay on Padparadscha Sapphire

A discussion of the definition of padparadscha sapphire, from early to modern times, along with the difficulty in standardizing such definitions.

Read More
by Lotus Gemology
From Peacock to Pigeon's Blood: Deconstructing Lotus Color Types

A brief description of the color types for ruby and sapphire used at Lotus Gemology.

Read More
by Richard W. Hughes
从孔雀蓝到鸽血红 细数宝石之美 • 红蓝宝石之动人色泽

Chinese-language translation of Lotus Gemology's ruby and sapphire color types.

Read More
by Lotus Gemology
From Peacock to Pigeon's Blood: Deconstructing Lotus Color Types

บทคัดย่อเรื่องการจำแนกสีทับทิมและแซฟไฟร์ ที่ใช้ในโลตัสเจมโมโลจี

Read More
Back to top