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7.20 Carat Oval Tanzanite, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
Top quality tanzanites like this 7.20 carat oval make it easy to see why this gorgeous gemstone is
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tanzanite

18.80 Carat Red Zircon Cushion, Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This unusually large zircon has a beautiful rose red color and exceptional clarity! While zircon is
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Zircon

18.80 Carat Red Zircon Cushion, Loose Gemstone
18.80 Carat Red Zircon Cushion, Loose Gemstone
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W 0.51 in D 0.31 in L 0.65 in
9.91 Carat Tanzanite Emerald Cut, Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
If there was ever a gemstone that could make you fall in love with emerald-cuts, this would be it
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tanzanite

7.34 Carat Oval Peridot, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
quality in a large size with such an excellent cut is hard to find, even in high end jewelry stores. This
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Peridot

74.72 Carat Rectangular Aquamarine, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
medium powder blue, this gemstone possesses superior clarity and superb faceting, allowing it to exhibit
Category

21st Century and Contemporary Brazilian Artisan Loose Gemstones

Materials

Aquamarine

74.72 Carat Rectangular Aquamarine, Unset Loose Gemstone
74.72 Carat Rectangular Aquamarine, Unset Loose Gemstone
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W 0.83 in D 0.55 in L 1.3 in
Alexandrite Oval, .86 Carat Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
complimentary design session. We have a large selection of loose alexandrites in our inventory. Please inquire
Category

21st Century and Contemporary Sri Lankan Artisan Loose Gemstones

Materials

Alexandrite, Chrysoberyl

1.42 Carat Tsavorite Garnet Oval, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
, no other gemstone seems to capture the perfect shade of green for all seasons the way tsavorite
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet, Tsavorite

10.18 Carat Round Blue Zircon, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
diameter and weighs 10.18 carats. (It is highly unusual to find a round cut zircon so large.) Blue zircons
Category

21st Century and Contemporary Loose Gemstones

Materials

Zircon, Blue Zircon

3.84 Carat Spessartite Garnet Oval, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
own a spectacular and unique gemstone! Custom designs available. We have a large selection of
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet

5.61 Carat Pear Shaped Tanzanite, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
gorgeous gemstone has excellent clarity, is well-proportioned and beautifully symmetrical. It measures
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tanzanite

5.61 Carat Pear Shaped Tanzanite, Unset Loose Gemstone
5.61 Carat Pear Shaped Tanzanite, Unset Loose Gemstone
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W 0.35 in D 0.26 in L 0.56 in
5.75 Cts Natural Loose Citrine Emerald Shape Gemstone
Located in Peshawar, PK
Loose Citrine Weight: 5.75 Carats Dimension: 12x9.5x7.6 Mm Origin: Brazil Shape: Emerald Color
Category

Late 20th Century Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

5.75 Cts Natural Loose Citrine Emerald Shape Gemstone
5.75 Cts Natural Loose Citrine Emerald Shape Gemstone
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W 0.38 in D 0.3 in L 0.48 in
7.49 Carat Rose Zircon Oval, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
9.67 x 6.51 millimeters, it is a sizeable gemstone, suitable for a ring or pendant. Fine quality rose
Category

21st Century and Contemporary Loose Gemstones

Materials

Zircon

9.75 Carat Orange Brown Zircon Triangle, Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
by gemstone dealers and avid collectors. Thanks to 21st century technology, information on rare gems
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Zircon

9.75 Carat Orange Brown Zircon Triangle, Loose Gemstone
9.75 Carat Orange Brown Zircon Triangle, Loose Gemstone
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W 0.48 in D 0.3 in L 0.48 in
19.34 Carat Blue Zircon Cushion, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This brilliant, cushion cut gem checks all the boxes if you're looking for an unusually large, fine
Category

21st Century and Contemporary Loose Gemstones

Materials

Blue Zircon, Zircon

2.46 Carat Spessartite Mandarin Garnet Oval, Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
garnet is larger than most that you would see in a typical jewelry store - it is a perfect opportunity
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet

1.62 Carat Tsavorite Garnet Cushion, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
the holidays - any holiday, like today! Custom designs available. We have a large collection of
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet, Tsavorite

2.77 Carat Oval Mandarin Garnet, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
-catching ring or pendant! A truly unique January birthstone! Custom designs available. We have a large
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Mandarin Garnet, Garnet

2.26 Carat Spessartite Mandarin Garnet Octagon, Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
a large selection of unmounted garnets in our inventory. Please inquire for details.
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet

16.93 Carat Orange Zircon Cushion, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
large selection of colorful zircons in our inventory. Please inquire for details.
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Zircon

16.93 Carat Orange Zircon Cushion, Unset Loose Gemstone
16.93 Carat Orange Zircon Cushion, Unset Loose Gemstone
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W 0.46 in D 0.38 in L 0.57 in
1.32 Carat Pear-Shaped Loose Unset Tanzanite Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
depth of color that is generally only seen in much larger stones. Measuring 8.56 x 5.88 millimeters
Category

21st Century and Contemporary Zambian Artisan Loose Gemstones

Materials

Tanzanite

Yellow Sapphire 2.54 Ct Square Unheated, Loose Gemstone
Located in South Melbourne, AU
Celebrate in style with this large bubbly vivid yellow sapphire of well over 2 carat. Revel in its
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

Yellow Sapphire 2.54 Ct Square Unheated, Loose Gemstone
Yellow Sapphire 2.54 Ct Square Unheated, Loose Gemstone
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W 0.26 in D 0.23 in L 0.27 in
10.90 Carat Parti-Color Purple Pink Tourmaline, Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
session. We have a large selection of loose tourmaline. Please inquire for details. Pink tourmaline is
Category

21st Century and Contemporary American Artisan Loose Gemstones

Materials

Tourmaline

36.96 Carat Pink Tourmaline Cushion, Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
21.85 x 20.20 x 12.50 millimeters, this large gemstone is a beautiful example of the wonder of nature
Category

21st Century and Contemporary Unknown Artisan Loose Gemstones

Materials

Tourmaline

3.66 Carat Unset Loose Pear Shaped Unmounted Tanzanite Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
rich color saturation generally seen in much larger gemstones, this beautifully proportioned pear would
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tanzanite

1.37 Carat Emerald Oval, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
natural inclusions appear magnified by photography. We have a large selection of loose emeralds in our
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Emerald

1.76 Carat Brazilian Emerald, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
large inventory of emeralds, both loose and set in original designs. We would love to design a bespoke
Category

21st Century and Contemporary Brazilian Artisan Loose Gemstones

Materials

Emerald

76.22 Carat Pear Shaped Aquamarine, Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
available. Please send us a message to schedule a complimentary design session. We have a large selection of
Category

21st Century and Contemporary Brazilian Artisan Loose Gemstones

Materials

Aquamarine

6.25 Carat Red Orange Zircon Pear, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
its range of hues, brilliance and fire, zircon is a perfect gemstone for someone who wants something
Category

21st Century and Contemporary Sri Lankan Loose Gemstones

Materials

Zircon

6.25 Carat Red Orange Zircon Pear, Unset Loose Gemstone
6.25 Carat Red Orange Zircon Pear, Unset Loose Gemstone
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W 0.38 in D 0.23 in L 0.49 in
7.16 Carat Precious Imperial Topaz Oval, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
exhibited in this gemstone make it easy to see why this color has been termed, "Imperial," with its rich
Category

21st Century and Contemporary Loose Gemstones

Materials

Imperial Topaz, Topaz

3.70 Carat Colombian Emerald, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
characteristics and natural inclusions appear magnified by photography. We have a large selection of loose
Category

21st Century and Contemporary Colombian Artisan Loose Gemstones

Materials

Emerald

7.40 Carat Burgundy Rhodolite Garnet Cushion, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
jewelry! It measures 12.21 x 10.09 x 6.57 millimeters and has the appearance of a larger gemstone. It is
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Rhodolite, Garnet

6.40 Carat Octagon Cut Golden Zircon, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
, this warm, orangish yellow gemstone has been faceted as a modified radiant, giving it superior
Category

21st Century and Contemporary Loose Gemstones

Materials

Zircon

5.26 Carat Round Apple Green Peridot, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
large selection of unmounted peridot in our inventory. Please inquire for details.
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Peridot

5.26 Carat Round Apple Green Peridot, Unset Loose Gemstone
5.26 Carat Round Apple Green Peridot, Unset Loose Gemstone
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W 0.44 in D 0.31 in L 0.44 in
3.37 Carat Emerald Cut Octagonal Loose Unset Aquamarine Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
cut in a way that gives it the appearance of a larger gem. It would be lovely set as a pendant or ring
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Aquamarine, Emerald

Alexandrite Chrysoberyl 1.16 Carat Loose Gemstone, GIA Certified - RTP
By Sarosi By Timeless Gems
Located in Los Angeles, CA
message to schedule a complimentary design session. We have a large selection of alexandrite and
Category

21st Century and Contemporary Sri Lankan Artisan Loose Gemstones

Materials

Alexandrite, Chrysoberyl

5.47 Carat Blue Zircon Square Octagon, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
design session. We have a large selection of unmounted blue zircon in our inventory. Please inquire for
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Zircon, Blue Zircon

Peach Sapphire 3.16 ct Cushion Natural Unheated, Loose Gemstone
Located in South Melbourne, AU
A magnificent large 3 carat certified natural unheated Madagascan peach sapphire skilfully cushion
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Sapphire

15.50 Carat Bi-Color Tourmaline Fancy Elongated Hexagon, Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
the personality of this gem inspire you! We have a large selection of collector quality loose
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tourmaline

3.26ct Deep Purple Red Rhodolite Garnet Oval Cut Loose Gemstone
By Gems and Jewels UK
Located in Birmingham, GB
3.26ct Deep Purple Red Rhodolite Garnet Oval Cut 8.4x7.3mm Loose Gemstone Fine Large Natural Deep
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

3.26ct Deep Purple Red Rhodolite Garnet Oval Cut Loose Gemstone
3.26ct Deep Purple Red Rhodolite Garnet Oval Cut Loose Gemstone
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H 0.24 in W 0.34 in D 0.29 in
2.00 Carat Heart Shaped Ruby, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
larger than its weight suggests. Accompanied by Gemological Institute of America Report #2151640507, this
Category

21st Century and Contemporary Thai Artisan Loose Gemstones

Materials

Ruby

Vivid Yellow Sapphire 2.70 Ct Emerald Cut Unheated, Loose Gemstone
Located in South Melbourne, AU
A large yellow sapphire masterfully emerald cut into just under 3 carat with gleaming facets
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

33.95 Carat Imperial Topaz Cushion, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
large selection of unmounted collector gemstones in our inventory. Please inquire for details.
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Topaz, Imperial Topaz

Yellow Sapphire 2.64 Ct Emerald Cut Natural Unheated, Loose Gemstone
Located in South Melbourne, AU
Leave a lasting impression with a fabulous custom made jewel using this large 2.64 carat skilfully
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

2.11 Carat Pink Sapphire Oval, Unset Loose Gemstone, GIA Certified
Located in Los Angeles, CA
inclusions may appear magnified by photography. We have a large selection of fancy colored sapphires in our
Category

21st Century and Contemporary Unknown Artisan Loose Gemstones

Materials

Sapphire, Pink Sapphire

Light Pink Sapphire 3.03 ct Cushion Natural Unheated, Loose Gemstone
Located in South Melbourne, AU
A large soft warm light pink sapphire glistening rays of orangish pink light from angled facets
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Sapphire

79.78 Carat Golden Olive Tourmaline Oval, Loose Gemstone, GIA Certified ...A
By Sarosi By Timeless Gems
Located in Los Angeles, CA
session. We have a large selection of collector quality gemstones in our inventory. Please inquire for
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tourmaline

6.15 Carat Spessartite Mandarin Garnet Oval, Loose Unset Ring, Pendant Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This stunning spessartite Mandarin garnet has all the hallmarks of a collector gemstone! Weighing
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet, Mandarin Garnet

.94 Carat Rare Green Demantoid Garnet, Loose Gemstone, GIA Certified ....A
By Sarosi By Timeless Gems
Located in Los Angeles, CA
Demantoid garnets are among the rarest gemstones in the world. This vivid, bright green round
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet

33.54 Carat Swiss Blue Topaz Ganesha Riddhi Siddhi Carving Loose Gemstone
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
Our hand-carved 33.54 carat Swiss Blue Topaz Ganesha Riddhi Siddhi Carving Loose Gemstone is a
Category

21st Century and Contemporary Indian Contemporary Loose Gemstones

Materials

Topaz, Blue Topaz

3.13 Carats Loose Blue Spinel Stone Cushion Cut Natural Tanzanian Gemstone
Located in Bangkok, TH
gemstone, showcasing a brilliant Cushion cut that accentuates its natural beauty. Originating from the rich
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Spinel

Unheated 2.14 Carat Purple Sapphire Octagon, Loose Gemstone, GIA Certified ...A
By Sarosi By Timeless Gems
Located in Los Angeles, CA
characteristics and natural inclusions may appear magnified by photography. We have a large selection of loose
Category

21st Century and Contemporary American Artisan Loose Gemstones

Materials

Sapphire, Purple Sapphire

1.48 Carat Green Tsavorite Garnet Pear Shape, Unset Loose Unmounted Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
very lively gemstone that would be lovely set in a ring or pendant! The perfect gift for yourself or a
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet, Tsavorite

2.54 Carat Loose Blue Spinel Stone Cushion Cut Natural Tanzanian Gemstone
Located in Bangkok, TH
gemstone is a testament to the unparalleled charm of Tanzanian spinels, known for their rich and vibrant
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Spinel

.19 Carat Brazilian Paraiba Tourmaline Oval, Loose Gemstone, GIA Certified ..A
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This neon blue-green Paraiba tourmaline gemstone weighs 0.19 carat and would make a beautiful ring
Category

21st Century and Contemporary Brazilian Artisan Loose Gemstones

Materials

Tourmaline, Paraiba

Champagne Peach Sapphire 4.50 Ct Emerald Cut Natural Unheated, Loose Gemstone
Located in South Melbourne, AU
An impressive large 4 carat champagne peach sapphire with a tempting pinkish yellow complexion
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

Blue Sapphire 3.07 Ct Oval Natural Heated GIA Certified, Loose Gemstone
Located in South Melbourne, AU
shaped into a large 3 carat oval cut to brilliantly expose the blended blue hues. This high quality blue
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

Unheated 10.21 Carat Pink Purple Spinel, Loose Gemstone, GIA Certified ...A
By Sarosi By Timeless Gems
Located in Los Angeles, CA
large stone like this with a nicely proportioned pavilion is hard to find. Depth adds brilliance and
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Spinel

Unheated 7.16 Carat Yellow Sapphire Oval, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
, but means that natural color yellow sapphires are very rare in the marketplace. This oval is large and
Category

21st Century and Contemporary Unknown Artisan Loose Gemstones

Materials

Sapphire, Yellow Sapphire

Unheated 1.39 Carat Burmese Pink Sapphire, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
. We have a large selection of unmounted sapphires in our inventory. Please inquire for details.
Category

21st Century and Contemporary Burmese Artisan Loose Gemstones

Materials

Sapphire, Pink Sapphire

2.19 Carat Cornflower Blue Sapphire Oval, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
natural inclusions may appear magnified by photography. We have a large selection of unset sapphires in
Category

21st Century and Contemporary Sri Lankan Artisan Loose Gemstones

Materials

Sapphire, Blue Sapphire

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Loose Gemstone Large For Sale on 1stDibs

Surely you’ll find the exact loose gemstone large you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Frequently made of gold, 14k gold and silver, this item was constructed with great care. Find an antique version now, or shop for 3 vintage or 125 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a loose gemstone large may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. For this particular accessory, there are many different carat weights to choose from, but .5 carat and 1 carat versions are of considerable interest. A loose gemstone large from Sarosi By Timeless Gems, Martha Seely and Mother Nature — each of whom created a beautiful version of this treasured accessory — is worth considering. Take a look at a loose gemstone large featuring sapphire from our inventory today to add the perfect touch to your look. See these pages for an oval cut iteration of this accessory, while there are also cushion cut cut and pear cut cut versions available here, too. When shopping for a loose gemstone large, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Loose Gemstone Large?

On average, a loose gemstone large at 1stDibs sells for $6,298, while they’re typically $57 on the low end and $235,600 for the highest priced versions of this item.

Finding the Right Loose Gemstones for You

Are you shopping for diamonds and other loose gemstones to create your own custom jewelry? 

Why might you purchase a diamond or gemstone “loose” — that is, on its own, not mounted in a piece of jewelry? Perhaps you’re a connoisseur looking to acquire a unique investment. The scarcity of high-quality colored diamonds, for instance, especially pink diamonds, means that their value increases over time; the same is true of rare Kashmir sapphires and Burmese rubies. Far rarer than diamonds, Paraiba tourmaline, discovered only in the 1980s, is treasured as much for its extraordinary color as its scarcity, both of which contribute to its high value.

A more common scenario would be that you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.

If this sounds like you, read on for tips on becoming one of the world’s savviest gem hunters.

Educate yourself: When buying any piece of gem-set fine jewelry, you should familiarize yourself with the factors that determine a stone’s price. This will enable you to streamline your search for the perfect gem and have intelligent, productive conversations with sellers.

There is a wealth of information online, such as our diamond-buying guide and this overview of colored gemstones for engagement rings. The buying guides of the Gemological Institute of America (GIA), searchable by stone type, are also a widely trusted source for consumers venturing into the world of diamonds and gems for the first time.

Vet your vendor: If you peruse 1stDibs with any regularity, you know there is no shortage of vendors who deal in top-quality loose gemstones. (Read about our vetted sellers.) Finding a trustworthy, established dealer may be as easy as getting a recommendation from friends or family. And, although it may sound obvious, it pays to Google your candidates — and consult customer reviews — before making contact.

Harakh Mehta, designer and founder of the Mumbai, India–based fine-jewelry brand Harakh, has an innate understanding of proper client relations, especially when the customer is in unfamiliar territory. “Start chatting with the dealer, get to know them better," he says. "It’s very important to establish a comfort level. We never push a sale, as we want it to be a carefully considered purchase. So, if the client is not in a rush, we do it over a few virtual meetings or phone calls.”

Request documentation: The best dealers go to great lengths to furnish clients with documents verifying the quality rating, natural origin and provenance of a stone — showing, for example, that loose emerald hails from the famous Muzo mine in Colombia — and disclosing any treatments applied to enhance its appearance. (And who doesn't love emerald jewelry? The most valuable emeralds are the ones that have a deep bluish-green to true green color and no visible inclusions.)

If no grading report is available for a stone you are interested in, the dealer should be able to provide an authenticity document, such as an appraisal or info sheet, that has been signed by an in-house gemologist or professional appraiser. Google those names, too, for extra peace of mind.

Ask for videos and visuals: When transacting with a gem dealer online, you should always request real-time videos and photographs, since professional photos of a stone, usually on a white background, have likely been retouched for optimal presentation.

Read more about how to buy loose gemstones and find your dream gems today on 1stDibs.