|
One of these gems known as the De Beers was the centerpiece of the Patiala necklace created by Cartier in the 1920s |
a diamond
|
$400 |
DJ |
GEMSTONES |
2024-06-12 |
#9123 |
|
The largest one of these gems ever found in the U.S. was the 40.23-carat "Uncle Sam", discovered in Arkansas in 1924 |
a diamond
|
$200 |
J |
GEMS |
2023-05-22 |
#16 |
|
This gem scores a perfect 10 on the Mohs hardness scale |
a diamond
|
$400 |
J |
GEMS & JEWELS |
2018-10-02 |
#7832 |
|
The regent, one of these gems, was once called the pitt, for Thomas Pitt who purchased it in 1702 |
diamond
|
$600 |
J |
GEMS |
2014-09-18 |
#6899 |
|
In an Arkansas state park, you can dig for this state gem of Arkansas |
diamond
|
$1,200 |
DJ |
STATE GEMS |
2012-10-09 |
#6452 |
|
The Jubilee one of these was so-named in 1897 to commemorate the 60th anniversary of Victoria's coronation |
a diamond
|
$400 |
J |
GEMSTONES |
2009-11-04 |
#5783 |
|
"Ring" in if you know that this gem is the hardest substance found in nature |
a diamond
|
$200 |
J |
GEMS & JEWELS |
2008-07-16 |
#5508 |
|
The Regent, a famous one of these gems, was once known as the Pitt (in honor of Sir Thomas, not Brad) |
diamond
|
$400 |
J |
GEMS |
2008-06-25 |
#5493 |
|
The Regent, a famous one of these gems, was once known as the Pitt (in honor of Sir Thomas, not Brad) |
diamond
|
$300 |
J |
GEMS & JEWELRY |
2001-05-01 |
#3847 |
|
This dazzling rock is so hard it can only be scratched by another one |
Diamond
|
$100 |
J |
ROCKS & MINERALS |
2001-03-08 |
#3809 |
|
The Jonker, a 726-carat gem of this kind, was discovered in South Africa in 1934 |
a diamond
|
$300 |
J |
GEMS & JEWELRY |
1996-01-11 |
#2619 |
|
The largest cut one of these gems is the 545.67-carat Unnamed Brown |
a diamond
|
$500 |
J |
GEMS & JEWELRY |
1995-09-05 |
#2527 |
|
It's a crystalline allotropic form of carbon |
diamond
|
$400 |
DJ |
GEMSTONES |
1995-06-29 |
#2509 |
|
The 3 natural industrial forms of this hard mineral are called bort, ballas & carbonado |
a diamond
|
$600 |
DJ |
GEOLOGY |
1994-12-20 |
#2372 |
|
This precious stone is crystalline carbon |
Diamond
|
$200 |
DJ |
GEOLOGY |
1994-11-22 |
#2352 |
|
The Orloff, one of these gems, was stolen from the eye of a Hindu idol & later given to Catherine the Great |
a diamond
|
$100 |
J |
GEMS & JEWELRY |
1994-05-19 |
#2249 |
|
The name of this gem comes from the Greek word adamas, which means "unconquerable" |
diamond
|
$400 |
J |
GEMS |
1993-10-04 |
#2086 |
|
It's the traditional gem for an engagement ring |
a diamond
|
$200 |
DJ |
GEMS & JEWELRY |
1993-06-28 |
#2046 |
|
The zircon is second only to this gem in ability to disperse light |
diamond
|
$100 |
J |
ROCKS & MINERALS |
1990-06-01 |
#1340 |
|
The gem mentioned in "Twinkle, Twinkle, Little Star" |
a diamond
|
$400 |
J |
GEMS |
1987-04-20 |
#616 |
|
It's not the drill but this powdered gem which, rubbed on by the drill, cuts the stone |
diamond
|
$300 |
J |
GEMS |
1987-04-17 |
#615 |