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1.94ct Marquise Violet Blue Tanzinite from Tanzania
1.94ct Marquise Violet Blue Tanzinite from Tanzania

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

Category

2010s Tanzanian Loose Gemstones

Materials

Tanzanite

1pc. Shimmering .7 Marquise Cut Natural Diamond
1pc. Shimmering .7 Marquise Cut Natural Diamond

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

Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified 0.62CT J SI1 Marquise Diamond
GIA Certified 0.62CT J SI1 Marquise Diamond

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

Category

Antique 15th Century and Earlier Loose Gemstones

Materials

White Diamond

GIA Certified Moval 1.48 Carat E/VS1 Loose Natural Diamond
GIA Certified Moval 1.48 Carat E/VS1 Loose Natural 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

Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Diamond

GIA Certified 1.11ct Fancy Vivid Greenish Blue Diamond, Marquise, VVS2
GIA Certified 1.11ct Fancy Vivid Greenish Blue Diamond, Marquise, VVS2

GIA Certified 1.11ct Fancy Vivid Greenish Blue Diamond, Marquise, VVS2

$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

Category

2010s Loose Gemstones

Materials

Blue Diamond

3.10 Carats Mismatch Tourmaline Pair, Pink Tourmaline Marquise
3.10 Carats Mismatch Tourmaline Pair, Pink Tourmaline Marquise

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

Category

21st Century and Contemporary Brazilian Art Deco Loose Gemstones

Materials

Tourmaline

GLC Certified 1.25ct Marquise Pink Spinel, 5.08x9.79x3.25 mm, Myanmar
GLC Certified 1.25ct Marquise Pink Spinel, 5.08x9.79x3.25 mm, Myanmar

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

Category

21st Century and Contemporary Burmese Loose Gemstones

Materials

Spinel

1.85ct Marquise Green Merelani Mint Tsavorite Garnet from Tanzania
1.85ct Marquise Green Merelani Mint Tsavorite Garnet from Tanzania

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

Category

2010s Tanzanian Loose Gemstones

Materials

Garnet, Tsavorite

10.4 ct. Flower Marquise Sky Blue Topaz Fantasy Cut 16X12 Floral
10.4 ct. Flower Marquise Sky Blue Topaz Fantasy Cut 16X12 Floral

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

Category

Vintage 1980s Loose Gemstones

Materials

Topaz, Blue Topaz

2.26 carats Blue Aquamarine Stone Marquise Cut Natural African Gemstone
2.26 carats Blue Aquamarine Stone Marquise Cut Natural African Gemstone

2.26 carats Blue Aquamarine Stone Marquise Cut Natural African Gemstone

$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

Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Aquamarine

4.20 carats Red Rhodolite Garnet Set Marquise Cut African Gemstones
4.20 carats Red Rhodolite Garnet Set Marquise Cut African Gemstones

4.20 carats Red Rhodolite Garnet Set Marquise Cut African Gemstones

$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

Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Garnet, Rhodolite

2.10 carats Red Rhodolite Garnet Pair Marquise Cut African Gemstone
2.10 carats Red Rhodolite Garnet Pair Marquise Cut African Gemstone

2.10 carats Red Rhodolite Garnet Pair Marquise Cut African Gemstone

$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

Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Garnet, Rhodolite

1.90 Carats Mix Matched Tourmaline Pair, Pink Tourmaline Marquise Cut Stones
1.90 Carats Mix Matched Tourmaline Pair, Pink Tourmaline Marquise Cut Stones

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

Category

21st Century and Contemporary Brazilian Art Deco Loose Gemstones

Materials

Tourmaline

Pinkish Red Natural Rhodolite Garnet Jewelry Size Loose Gemstones Lot 13.30 Ct
Pinkish Red Natural Rhodolite Garnet Jewelry Size Loose Gemstones Lot 13.30 Ct

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

Category

21st Century and Contemporary Tanzanian Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

Certified 7.04 Carats Paraiba Tourmaline Marquise Cut Stone for Fine Jewellery
Certified 7.04 Carats Paraiba Tourmaline Marquise Cut Stone for Fine Jewellery

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

Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Tourmaline, Paraiba

CLEARANCE GIA, 0.50 Carat Light Yellow Brilliant Marquise Shape Natural Diamond
CLEARANCE GIA, 0.50 Carat Light Yellow Brilliant Marquise Shape Natural Diamond

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

Category

2010s American Loose Gemstones

Materials

Diamond, Yellow Diamond, White Gold, 14k Gold

2.30 Carats Mix Matched Tourmaline Pair, Pink Tourmaline Marquise and Pear Gems
2.30 Carats Mix Matched Tourmaline Pair, Pink Tourmaline Marquise and Pear Gems

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

Category

21st Century and Contemporary Brazilian Art Deco Loose Gemstones

Materials

Tourmaline

0.75 CARAT MARQUISE BRILLIANT GIA CERTIFIED U to v RANGE SI2 CLARITY DIAMOND
0.75 CARAT MARQUISE BRILLIANT GIA CERTIFIED U to v RANGE SI2 CLARITY DIAMOND

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

Category

Antique 15th Century and Earlier Loose Gemstones

Materials

White Diamond

13.89-Carat Aquamarine Leaf-Shaped Rare Loose Gemstone – Merkaba Beverly Hills
13.89-Carat Aquamarine Leaf-Shaped Rare Loose Gemstone – Merkaba Beverly Hills

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...

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Aquamarine, Beryl, Gold, 18k Gold, Rose Gold, Yellow Gold, Platinum

38.92-Carat Marquise Ethiopian Opal – A Rare Collectible Gem by Merkaba Jewelry
38.92-Carat Marquise Ethiopian Opal – A Rare Collectible Gem by Merkaba Jewelry

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

Category

21st Century and Contemporary Ethiopian Modern Loose Gemstones

Materials

Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum

1.04ct Marquise Green Emerald from Colombia
1.04ct Marquise Green Emerald from Colombia

1.04ct Marquise Green Emerald from Colombia

$800

W 0.49 in D 0.13 in L 0.18 in

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

Category

2010s Colombian Loose Gemstones

Materials

Emerald

1.07ct Marquise Green Emerald from Colombia
1.07ct Marquise Green Emerald from Colombia

1.07ct Marquise Green Emerald from Colombia

$2,880

W 0.45 in D 0.12 in L 0.21 in

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

Category

2010s Colombian Loose Gemstones

Materials

Emerald

1.68 ct Marquise Emerald GIA Certified Colombian
1.68 ct Marquise Emerald GIA Certified Colombian

1.68 ct Marquise Emerald GIA Certified Colombian

$2,160

W 0.48 in D 0.17 in L 0.25 in

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

Category

2010s Colombian Loose Gemstones

Materials

Emerald

1.68 Carat Marquise Emerald GIA Certified Colombian
1.68 Carat Marquise Emerald GIA Certified Colombian

1.68 Carat Marquise Emerald GIA Certified Colombian

$2,160

W 0.48 in D 0.17 in L 0.25 in

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

Category

2010s Colombian Loose Gemstones

Materials

Emerald

1.6ct Marquise Yellow Sapphire from Tanzania Unheated
1.6ct Marquise Yellow Sapphire from Tanzania Unheated

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

Category

2010s Tanzanian Loose Gemstones

Materials

Yellow Sapphire

1.4ct Marquise Green Emerald GIA Certified Colombia
1.4ct Marquise Green Emerald GIA Certified Colombia

1.4ct Marquise Green Emerald GIA Certified Colombia

$2,240

W 0.45 in D 0.17 in L 0.22 in

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

Category

2010s Colombian Loose Gemstones

Materials

Emerald

2.59ct Marquise Green Emerald GIA Certified Zambia F1/Minor
2.59ct Marquise Green Emerald GIA Certified Zambia F1/Minor

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

Category

2010s Zambian Loose Gemstones

Materials

Emerald

GIA Certified Fancy Intense Pink Purple Diamond 0.12 Carat Marquise
GIA Certified Fancy Intense Pink Purple Diamond 0.12 Carat Marquise

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

Category

2010s South African Loose Gemstones

Materials

Diamond

1.57 Carat GIA Certified VS2, Color I, Marquis Cut Natural Diamond.
1.57 Carat GIA Certified VS2, Color I, Marquis Cut Natural 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

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

1.12 Carat GIA Certified VS1, Color H, Marquis Cut Natural Diamond.
1.12 Carat GIA Certified VS1, Color H, Marquis Cut Natural 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

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

GIA Certified 1.30 Carat Fancy Light Yellow Green Si2 Clarity Diamond
GIA Certified 1.30 Carat Fancy Light Yellow Green Si2 Clarity Diamond

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

Category

2010s Loose Gemstones

Materials

Diamond

2.30 Carat Sapphire No-Heat Natural Marquoise Cut stone Fine Jewelry Natural Gem
2.30 Carat Sapphire No-Heat Natural Marquoise Cut stone Fine Jewelry Natural Gem

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

Category

2010s Loose Gemstones

Materials

Sapphire

GIA Certified 0.44 Carat Fancy Intense Orangy Yellow I1 Clarity Diamond
GIA Certified 0.44 Carat Fancy Intense Orangy Yellow I1 Clarity Diamond

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

Category

2010s Asian Loose Gemstones

Materials

Diamond

Pristine 0.70ct Ideal Cut Natural Diamond - GIA Certified
Pristine 0.70ct Ideal Cut Natural Diamond - GIA Certified

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

Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified 0.11 Carat Fancy Deep Pink Diamond
GIA Certified 0.11 Carat Fancy Deep Pink Diamond

GIA Certified 0.11 Carat Fancy Deep Pink Diamond

$4,160

H 0.07 in W 0.1 in L 0.17 in

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

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.50 Carat Fancy Intense Orangy Yellow Diamond
GIA Certified 0.50 Carat Fancy Intense Orangy Yellow 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

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.73 Carat Fancy Deep Yellow Orange I1 Clarity Diamond
GIA Certified 0.73 Carat Fancy Deep Yellow Orange I1 Clarity Diamond

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

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.30 Carat Light Pink SI1 Clarity Diamond
GIA Certified 0.30 Carat Light Pink SI1 Clarity 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

Category

2010s Asian Loose Gemstones

Materials

Diamond

2.06 Ct  Guild Certificate Natural Emerald Russia Cabochon Gemstone vivid green
2.06 Ct  Guild Certificate Natural Emerald Russia Cabochon Gemstone vivid green

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...

Category

2010s Loose Gemstones

Materials

Emerald

GIA Certified 0.31 Carat Faint Pink SI2 Clarity Diamond
GIA Certified 0.31 Carat Faint Pink SI2 Clarity Diamond

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

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.84 Carat Fancy Greyish Green VS2 Clarity Diamond
GIA Certified 0.84 Carat Fancy Greyish Green VS2 Clarity 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

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.36 Carat Fancy Intense Orangy Yellow VS2 Clarity Diamond
GIA Certified 0.36 Carat Fancy Intense Orangy Yellow VS2 Clarity Diamond

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

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.29 Carat Fancy Intense Yellow Orange I1 Clarity Diamond
GIA Certified 0.29 Carat Fancy Intense Yellow Orange I1 Clarity Diamond

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

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.69 Carat Fancy Vivid Orangy Yellow I1 Clarity Diamond
GIA Certified 0.69 Carat Fancy Vivid Orangy Yellow I1 Clarity Diamond

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

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.90 Carat Faint Yellow Green SI1 Clarity Diamond
GIA Certified 0.90 Carat Faint Yellow Green SI1 Clarity 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

Category

2010s Asian Loose Gemstones

Materials

Diamond

4.72ct Brazilian Blue-Gray Marquis Tourmaline, Circa 1988
4.72ct Brazilian Blue-Gray Marquis Tourmaline, Circa 1988

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

Category

Vintage 1980s Brazilian Artisan Loose Gemstones

Materials

Tourmaline

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Loose Marquise For Sale on 1stDibs

You are likely to find exactly the loose marquise you’re looking for on 1stDibs, as there is a broad range for sale. Our collection of these items for sale includes 2 vintage editions and 15 modern creations to choose from as well. You’re likely to find the perfect loose marquise among the distinctive items we have available, which includes versions made as long ago as the 20th Century as well as those produced as recently as the 21st Century. A loose marquise from Gems and Jewels UK, Merkaba and Tamir — each of whom created a beautiful version of this treasured accessory — is worth considering. While most can agree that any loose marquise from our collection can easily elevate most outfits, but the choice of a diamond version from the 7 available is guaranteed to add a special touch to your ensemble. Today, if you’re looking for a marquise cut version of this piece and are unable to find the perfect match, our selection also includes alternatives. Most of our loose marquise for sale are for women, but there are 15 pieces available to browse for men.

How Much is a Loose Marquise?

Prices for a loose marquise can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $52 and can go as high as $29,950, while this accessory, on average, fetches $2,640.

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.