1.94ct Marquise Violet Blue Tanzinite from Tanzania
Located in Toronto, Ontario
4.67 mm Shape: Marquise Cutting Style Crown: Modified Brilliant Cut Cutting Style Pavilion: Brilliant
2010s Tanzanian Loose Gemstones
Tanzanite
1.94ct Marquise Violet Blue Tanzinite from Tanzania
Located in Toronto, Ontario
4.67 mm Shape: Marquise Cutting Style Crown: Modified Brilliant Cut Cutting Style Pavilion: Brilliant
Tanzanite
1pc. Shimmering .7 Marquise Cut Natural Diamond
Located in רמת גן, IL
This sparkling marquise cut natural diamond is a rare and valuable gem. With its colorless D grade
Diamond
$896Sale Price|20% Off
GIA Certified 0.62CT J SI1 Marquise Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: 54274 Stone Shape: Marquise Diamond Weight: 0.62CT Clarity: SI1 Color: J
White Diamond
GIA Certified Moval 1.48 Carat E/VS1 Loose Natural Diamond
Located in Miami, FL
GIA-certified loose natural diamond featuring 1.48 carats in modified marquise cut, this unique cut
Diamond
$4,797Sale Price|49% Off
W 0.21 in D 0.13 in L 0.45 in
GIA Certified 1.11ct Fancy Vivid Greenish Blue Diamond, Marquise, VVS2
Located in New York, NY
A striking expression of rarity and refinement. This marquise brilliant-cut diamond shimmers with a
Blue Diamond
3.10 Carats Mismatch Tourmaline Pair, Pink Tourmaline Marquise
Located in Jaipur, RJ
Gemstone - Tourmaline Weight- 3.10 Carats Shape - princess , marquise Size - 7x7 to 8x4 MM Pieces
Tourmaline
Stunning 1.05ct Double Excellent Ideal Cut Marquise-Shaped Diamond - GIA
Located in רמת גן, IL
Stunning 1.05ct Double Excellent Ideal Cut Marquise-Shaped Diamond - GIA Certified Experience
Diamond
$500
W 0.2 in D 0.13 in L 38.55 in
GLC Certified 1.25ct Marquise Pink Spinel, 5.08x9.79x3.25 mm, Myanmar
Located in เกาะสมุย, TH
marquise cut Burma spinel with GLC lab report card. Weight= 1.25 carats The country of origin for this
Spinel
$1,280
W 0.57 in D 0.15 in L 0.25 in
1.85ct Marquise Green Merelani Mint Tsavorite Garnet from Tanzania
Located in Toronto, Ontario
x 3.65 mm Shape: Marquise Cutting Style: Cutting Style Crown: Brilliant Cut Cutting Style Pavilion
Garnet, Tsavorite
10.4 ct. Flower Marquise Sky Blue Topaz Fantasy Cut 16X12 Floral
Located in Warren, NJ
The product is a 10.4 ct. fantasy cut sky blue topaz gemstone in the shape of a marquise. This
Topaz, Blue Topaz
4.86cts 17x9 Natural Green Marquise Colombian Emerald - Earth-Mined Gem
Located in Jupiter, FL
Stone: Emerald Weight: 4.86-carats Shape: Marquise Cut Clarity: Transparent Luster: Very Good Color
Emerald
6.84cts 18.5x9 Natural Green Marquise Colombian Emerald - Earth-Mined Gem
Located in Jupiter, FL
Stone: Emerald Weight: 6.84-carats Shape: Marquise Cut Clarity: Transparent Luster: Excellent Color
Emerald
6.3 ct. Brazil Natural Amethyst Flower Marquise Fantasy Cut 16X12 Floral
Located in Warren, NJ
jewelry making or as an addition to a collection of loose gemstones. The gemstone type is amethyst, which
Amethyst
Dazzling 1.50ct Double Excellent Ideal Cut Pair of Marquise-Shaped Diamonds
Located in רמת גן, IL
Dazzling 1.50ct Double Excellent Ideal Cut Pair of Marquise-Shaped Diamonds - GIA Certified
Diamond
$324Sale Price|20% Off
W 0.24 in D 0.21 in L 0.6 in
2.26 carats Blue Aquamarine Stone Marquise Cut Natural African Gemstone
Located in Bangkok, TH
marquise cut that emphasizes its captivating clarity and cool, oceanic hue. Sourced from Africa, this
Aquamarine
$599
H 0.2 in W 0.24 in L 0.48 in
2.16 Cts Tanzania Purple Spinel Marquise Faceted Natural Gemstone for Jewelry
Located in Jaipur, RJ
Tanzania Blue Spinel Marquise Faceted Natural Cut Stone for Fine Jewelry Weight - 2.16 Cts Size
Spinel
4.31ct 15x9 Natural Colombian Green Emerald - Marquise Cut Earth Mined Gemstone
Located in Jupiter, FL
Stone: Emerald Weight: 4.31-carats Shape: Marquise Cut Clarity: Transparent Luster: Very Good Color
Emerald
$140Sale Price|20% Off
W 0.21 in D 0.12 in L 0.4 in
4.20 carats Red Rhodolite Garnet Set Marquise Cut African Gemstones
Located in Bangkok, TH
cut into elegant marquise shapes. Originating from Africa, these gemstones display a vivid and rich
Garnet, Rhodolite
$156Sale Price|20% Off
W 0.21 in D 0.12 in L 0.4 in
2.10 carats Red Rhodolite Garnet Pair Marquise Cut African Gemstone
Located in Bangkok, TH
of 2.10 carats, expertly cut into elegant marquise shapes. Originating from Africa, these gemstones
Garnet, Rhodolite
$129
W 0.32 in D 0.16 in L 0.4 in
1.90 Carats Mix Matched Tourmaline Pair, Pink Tourmaline Marquise Cut Stones
Located in Jaipur, RJ
Gemstone - Tourmaline Weight- 1.90 Carats Shape - Marquise Size - 8x4 to 10x5 mm Pieces - 3
Tourmaline
$199Sale Price / set|20% Off
H 0.32 in L 0.32 in
Pinkish Red Natural Rhodolite Garnet Jewelry Size Loose Gemstones Lot 13.30 Ct
Located in Peshawar, PK
Pinkish Hue Deep Red Natural Rhodolite Garnet Jewelry Size Loose Gemstones Lot for Earrings
Garnet, Rhodolite
$3,000
H 0.25 in W 0.37 in L 0.86 in
Certified 7.04 Carats Paraiba Tourmaline Marquise Cut Stone for Fine Jewellery
Located in Jaipur, RJ
Exceptional 7.04 Carats Paraiba Tourmaline Marquise Cut Stone for Fine Jewellery
Tourmaline, Paraiba
43.45 Carats NO HEAT Ruby Mozambique Cut Stone Marquise Fine Quality Natural
Located in Jaipur, RJ
43.45 Carats NO HEAT Ruby Mozambique Cut Stone Marquise Fine Quality Natural Weight: 43.65
Ruby
45.63 Carats Ruby Mozambique No-Heat Marquise Layout Fine jewelry Natural Gem
Located in Jaipur, RJ
45.63 Carats Ruby Mozambique No-Heat Marquise Layout Fine jewelry Natural Gem Gemstone - Ruby
Ruby
15.40 Carats Multi Tourmaline Marquise Cut Stones Natural Gem For Fine Jewelry
Located in Jaipur, RJ
15.40 Carats Multi Tourmaline Marquise CutStone Natural Gem For Top Fine Jewelry Gemstone: Multi
Tourmaline
CLEARANCE GIA, 0.50 Carat Light Yellow Brilliant Marquise Shape Natural Diamond
Located in Great Neck Plaza, NY
GIA 0.50 Carat Light Yellow Brilliant Marquise Shape Natural Diamond Diamond Color: Light yellow
Diamond, Yellow Diamond, White Gold, 14k Gold
$139
W 0.32 in D 0.08 in L 0.44 in
2.30 Carats Mix Matched Tourmaline Pair, Pink Tourmaline Marquise and Pear Gems
Located in Jaipur, RJ
Gemstone - Tourmaline Weight- 2.30 Carats Shape - Pear , Marquise Size - 8x4 to 11x6 MM Pieces - 3
Tourmaline
$732Sale Price|20% Off
0.75 CARAT MARQUISE BRILLIANT GIA CERTIFIED U to v RANGE SI2 CLARITY DIAMOND
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56890 Stone Shape: MARQUISE BRILLIANT Diamond Weight: 0.75ct Clarity: SI2
White Diamond
$11,490
W 0.4 in D 0.3 in L 1.08 in
13.89-Carat Aquamarine Leaf-Shaped Rare Loose Gemstone – Merkaba Beverly Hills
Located in Beverly Hills, CA
Ultra-exclusive 13.89-carat leaf-shaped Aquamarine gemstone featuring a rare hand-carved silhouette and ocean-mist clarity. A masterpiece for fine gemstone collectors. The Sovereign...
Aquamarine, Beryl, Gold, 18k Gold, Rose Gold, Yellow Gold, Platinum
$47,320
W 0.72 in L 1.7 in
38.92-Carat Marquise Ethiopian Opal – A Rare Collectible Gem by Merkaba Jewelry
By Merkaba
Located in Beverly Hills, CA
38.92-Carat Marquise Ethiopian Opal – A Rare Masterpiece by Merkaba Jewelry Beverly Hills. A Rare
Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
1.04ct Marquise Green Emerald from Colombia
Located in Toronto, Ontario
3.28 mm Shape: Marquise Cutting Style Crown: Brilliant Cut Cutting Style Pavilion: Modified Brilliant
Emerald
1.07ct Marquise Green Emerald from Colombia
Located in Toronto, Ontario
2.82 mm Shape: Marquise Cutting Style Crown: Brilliant Cut Cutting Style Pavilion: Modified Brilliant
Emerald
1.68 ct Marquise Emerald GIA Certified Colombian
Located in Toronto, Ontario
: 2203784761 Shape: Marquise Cutting Style: Modified Brilliant Cut Cutting Style: Crown: N/A Cutting Style
Emerald
1.68 Carat Marquise Emerald GIA Certified Colombian
Located in Toronto, Ontario
: 2203784761 Shape: Marquise Cutting Style: Modified Brilliant Cut Cutting Style: Crown: N/A Cutting Style
Emerald
1.6ct Marquise Yellow Sapphire from Tanzania Unheated
Located in Toronto, Ontario
3.33 mm Shape: Marquise Cutting Style Crown: Brilliant Cut Cutting Style Pavilion: Step Cut
Yellow Sapphire
1.4ct Marquise Green Emerald GIA Certified Colombia
Located in Toronto, Ontario
: 6224292949 Shape: Marquise Cutting Style: Cutting Style: Crown: Brilliant Cut Cutting Style: Pavilion
Emerald
2.59ct Marquise Green Emerald GIA Certified Zambia F1/Minor
Located in Toronto, Ontario
The GIA report reads as follows: GIA Report Number: 6223842726 Shape: Marquise Cutting Style
Emerald
$9,800
W 0.1 in D 0.07 in L 0.2 in
GIA Certified Fancy Intense Pink Purple Diamond 0.12 Carat Marquise
Located in Portland, OR
GIA Certified Fancy Intense Pink-Purple Diamond, weighing 0.12 carats and cut in a rare marquise
Diamond
1.57 Carat GIA Certified VS2, Color I, Marquis Cut Natural Diamond.
Located in San Juan Capistrano, CA
Diamond Grading Report For Natural Diamond Grading Results Shape- Marquise Modified Brilliant
Diamond
1.12 Carat GIA Certified VS1, Color H, Marquis Cut Natural Diamond.
Located in San Juan Capistrano, CA
Diamond Grading Report For Natural Diamond Grading Results Shape- Marquise Brilliant Measurements
Diamond
$17,745
H 0.15 in W 0.23 in L 0.44 in
GIA Certified 1.30 Carat Fancy Light Yellow Green Si2 Clarity Diamond
Located in บางรัก, TH
Marquise shape, which is a romantic and unique cut. It has 10 to 12 facets and a distinct Marquise shape
Diamond
$3,833
W 0.25 in D 0.16 in L 0.5 in
2.30 Carat Sapphire No-Heat Natural Marquoise Cut stone Fine Jewelry Natural Gem
Located in Jaipur, RJ
2.30 Carat Sapphire No-Heat Natural Marquoise Cut stone Fine Jewelry Natural Gem Weight - 2.30 Carats Size - 12.5x6.2x3.9 mm Shape - Marquoise Quantity - 1 Piece
Sapphire
$2,000Sale Price|20% Off
1.33 Ct GUILD Certificate Natural No Oil Russia Emerald Intense Green Color
Located in bangkok, TH
Brilliant Shape : Marquise Treatment: none (No oil) Certification: Guild
Emerald
$2,590
H 0.1 in W 0.16 in L 0.27 in
GIA Certified 0.44 Carat Fancy Intense Orangy Yellow I1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6485102524 Shape And Cut: Marquise Carat Weight: 0.44 carat
Diamond
Pristine 0.70ct Ideal Cut Natural Diamond - GIA Certified
Located in רמת גן, IL
marquise-shaped diamond, a perfect blend of elegance and brilliance. Certified by GIA, this exquisite
Diamond
GIA Certified 0.11 Carat Fancy Deep Pink Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1188868968 Shape And Cut: Marquise Carat Weight: 0.11 carat
Diamond
GIA Certified 0.50 Carat Fancy Intense Orangy Yellow Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2247860830 Shape And Cut: Marquise Carat Weight: 0.50 carat
Diamond
$5,370
H 0.08 in W 0.19 in L 0.35 in
GIA Certified 0.73 Carat Fancy Deep Yellow Orange I1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1259315304 Shape And Cut: Marquise Carat Weight: 0.73 carat
Diamond
GIA Certified 0.30 Carat Light Pink SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1226637343 Shape And Cut: Marquise Carat Weight: 0.30 carat
Diamond
$1,280Sale Price|20% Off
2.06 Ct Guild Certificate Natural Emerald Russia Cabochon Gemstone vivid green
Located in bangkok, TH
EMA84 2.06 Ct Guild Certificate Natural Emerald Russia Cabochon chon Gemstone vivid green color eye clean quality GEM DESCRIPTION Species: Natural Beryl Variey: Natural Emerald Weig...
Emerald
GIA Certified 0.31 Carat Faint Pink SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1429862112 Shape And Cut: Marquise Carat Weight: 0.31 carat
Diamond
GIA Certified 0.84 Carat Fancy Greyish Green VS2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6371759472 Shape And Cut: Marquise Carat Weight: 0.84carat
Diamond
$2,270
H 0.1 in W 0.15 in L 0.24 in
GIA Certified 0.36 Carat Fancy Intense Orangy Yellow VS2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6482102508 Shape And Cut: Marquise Carat Weight: 0.36 carat
Diamond
$1,830
H 0.09 in W 0.12 in L 0.25 in
GIA Certified 0.29 Carat Fancy Intense Yellow Orange I1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6482102515 Shape And Cut: Marquise Carat Weight: 0.29 carat
Diamond
$5,799
H 0.11 in W 0.17 in L 0.38 in
GIA Certified 0.69 Carat Fancy Vivid Orangy Yellow I1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1485102498 Shape And Cut: Marquise Carat Weight: 0.69 carat
Diamond
GIA Certified 0.90 Carat Faint Yellow Green SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 7461375530 Shape And Cut: Marquise Carat Weight: 0.90 carat
Diamond
4.72ct Brazilian Blue-Gray Marquis Tourmaline, Circa 1988
By Aria Jewelry Design
Located in Raleigh, NC
4.72ct Brazilian blue gray marquis shape tourmaline unique Brazilian tourmaline
Tourmaline
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.