Rare Gem Collection

Padparadscha

GRS Type Sunrise and Sunset Padparadscha v. GIA Padparadscha

A common issue customers and gem dealers face is when two labs disagree on a gemstone. A lot of times these disagreements are about heat treatment v. non-heat treatment, and correct origin (Ceylon v. Burma etc..).

The same issue arises when one lab calls a certain variety of sapphire as “Padparadscha,” and another classifies it as “Fancy Sapphire.”

GIA and GRS lab differences when it comes to Padparadscha Sapphire

GRS has taken a slight deviation from the Lab Manual Harmonization Committee’s (LMHC) standard of Padparadscha. The LMHC defines Padparadscha as a “ variety of corundum from any geographical origin whose colour is a subtle mixture of pinkish orange to orangey pink with pastel tones and low to medium saturations when viewed in standard daylight.

In 2017, GRS released a Color Terms catalogue titled “GRS- Pioneering Global Industry Standards.”

Within the catalogue, GRS decided to further classify certain Padparadschas. This includes: “GRS-type ‘SUNRISE’ Padparadscha Sapphire” and also “GRS-type ‘SUNSET’ Padparadscha Sapphire.”

According to GRS:

  • Sunrise describes “Padaradschas with medium weak to strong saturation of pre-dominantly pink with orange color.”
  • Sunset describes “Padaradschas with medium weak to strong saturation of pre-dominantly orange with pink color.”
Sunset Padparadscha Sapphire Courtesy of GRS
Sunrise Padparadscha Sapphire Courtesy of GRS

Under the LMHC’s definition, high saturated sapphires would not meet the color range of Padparadscha.

This difference is what leads GIA to deviate from GRS. When GRS uses “Sunset,” GIA may say is an Orange Sapphire. In the example below, GRS Sunrise, GIA calls Pink Sapphire. See the video— What do you think?

The nomenclature makes all the difference for someone seeking the official Padparadscha seal of approval.

Every person’s eyes have a unique way of picking up subtle color variations. Lighting and color cones may allow two people to agree on the main color hue but not agree on the secondary color. The secondary color being  a color modifier that masks pink or orange. In these circumstances, determining certain padparadscha color variations is a challenging task.

Despite these nuances, we have no issues using either GRS or GIA for our Padparadscha Sapphires.

 

More Information on Padparadschas

Red Diamond and Blue Diamond

Time and time again the notion of diamonds being rare has been displaced. There are exceptions to everything. Red diamonds and blue diamonds are amongst the most highly sought collectors items in the world. Their scarcity is unmatched. Most recently, a 12.11 carat fancy intense blue diamond sold for approximately $1.3 Million Per Carat! Sotheby’s Auction House estimates this 1.38 ct Red Diamond to sell for $1.8 to $2.8M USD!

Fancy Blue Diamond Ring- Source: Christie’s
Fancy Red Diamond Ring- Source: Sotheby’s