search
  • Sign In
    Sign Up
  • English speaking customer support only

    1-800-464-1640

    International:

    +66-39601289

  • Change Language
  • USD
  • CART
FREE SHIPPING

Buy Heart Shape 12x12 mm Gems

(26)
Heart Shape 12x12 mm Gems Weight Heart Shape 12x12 mm Gems Size Heart Shape 12x12 mm Gems Clarity Heart Shape 12x12 mm Gems Price Heart Shape 12x12 mm Gems Origin
More
Heart Shape 12x12 mm Gems Single
Heart Shape 12x12 mm Gems Pairs
Heart Shape 12x12 mm Gems Lots
Heart Shape 12x12 mm Gems Faceted
Heart Shape 12x12 mm Gems Cabochons
Sort By:
Clear All
Photos are of Actual Products for Sale

12.97 ct Black Spinel, 12.1 x 11.9 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 12.97 carat weight Spinel

12.97ct (total)2 Pieces
$ 71.34
12.1 x 11.9 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.49 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.9 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.12 ct Black Spinel, 12.1 x 11.7 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.12 carat weight Spinel

13.12ct (total)2 Pieces
$ 72.16
12.1 x 11.7 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.56 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.7 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.98 ct Black Spinel, 12.1 x 11.7 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.98 carat weight Spinel

13.98ct (total)2 Pieces
$ 76.89
12.1 x 11.7 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.99 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.7 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart
5.23ct1 Piece
$ 26.15
12.1 x 11.9 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 5.23 ct Amethyst
Amethyst Shape: Carved Heart Amethyst
Amethyst Size: 12.1 x 11.9 mm Amethyst
Amethyst Color: Medium Violet Amethyst
Amethyst Clarity: Transparent Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
View Details
Add to Cart

14.22 ct Black Spinel, 12.1 x 11.8 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 14.22 carat weight Spinel

14.22ct (total)2 Pieces
$ 78.21
12.1 x 11.8 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 7.11 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.8 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.94 ct Black Spinel, 12 x 11.7 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.94 carat weight Spinel

13.94ct (total)2 Pieces
$ 76.67
12 x 11.7 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.97 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12 x 11.7 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

14.51 ct Black Spinel, 12.1 x 11.8 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 14.51 carat weight Spinel

14.51ct (total)2 Pieces
$ 72.55
12.1 x 11.8 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 7.26 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.8 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.94 ct Black Spinel, 12.1 x 11.7 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.94 carat weight Spinel

13.94ct (total)2 Pieces
$ 76.67
12.1 x 11.7 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.97 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.7 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

6.46 ct Heart Chalcedony, 12.3 x 11.8 mm From Brazil

Natural Chalcedony, Qty: 1 pc | 6.46 carat weight Chalcedony

6.46ct1 Piece
$ 17.77
12.3 x 11.8 mm
Item Description
Stone Type: Loose Chalcedony
Chalcedony Weight: 6.46 ct Chalcedony
Chalcedony Shape: Heart Cabochon Chalcedony
Chalcedony Size: 12.3 x 11.8 mm Chalcedony
Chalcedony Color: Light Bluish Violet Chalcedony
Chalcedony Clarity: Transparent/Translucent Chalcedony
Chalcedony Origin: Brazil Chalcedony
Chalcedony Treatment: Untreated
Chalcedony Quantity: 1
Chalcedony Certificate: GemSelect
Product Description:
View Details
Add to Cart

14.37 ct Black Spinel, 12 x 11.6 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 14.37 carat weight Spinel

14.37ct (total)2 Pieces
$ 79.04
12 x 11.6 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 7.19 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12 x 11.6 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.85 ct Black Spinel, 12.1 x 11.8 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.85 carat weight Spinel

13.85ct (total)2 Pieces
$ 76.18
12.1 x 11.8 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.93 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.8 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.02 ct Black Spinel, 12.1 x 11.9 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.02 carat weight Spinel

13.02ct (total)2 Pieces
$ 65.10
12.1 x 11.9 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.51 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.9 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.27 ct Heart Chalcedony, 12.2 x 12.1 mm From Namibia

Natural Chalcedony, Qty: 2 pcs | 13.27 carat weight Chalcedony

13.27ct (total)2 Pieces
$ 26.74
12.2 x 12.1 mm
Item Description
Stone Type: Loose Chalcedony
Chalcedony Weight: 6.64 ct Chalcedony
Chalcedony Shape: Heart Cabochon Chalcedony
Chalcedony Size: 12.2 x 12.1 mm Chalcedony
Chalcedony Color: Light Violet Chalcedony
Chalcedony Clarity: Translucent Chalcedony
Chalcedony Origin: Namibia Chalcedony
Chalcedony Treatment: Untreated
Chalcedony Quantity: 2
Chalcedony Certificate: GemSelect
Product Description:
View Details
Add to Cart

14 ct Black Spinel, 12 x 11.7 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 14.00 carat weight Spinel

14.00ct (total)2 Pieces
$ 77.00
12 x 11.7 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 7.00 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12 x 11.7 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.37 ct Heart Chalcedony, 12.2 x 12.1 mm From Namibia

Natural Chalcedony, Qty: 2 pcs | 13.37 carat weight Chalcedony

13.37ct (total)2 Pieces
$ 26.74
12.2 x 12.1 mm
Item Description
Stone Type: Loose Chalcedony
Chalcedony Weight: 6.69 ct Chalcedony
Chalcedony Shape: Heart Cabochon Chalcedony
Chalcedony Size: 12.2 x 12.1 mm Chalcedony
Chalcedony Color: Light Royal Violet Chalcedony
Chalcedony Clarity: Translucent Chalcedony
Chalcedony Origin: Namibia Chalcedony
Chalcedony Treatment: Untreated
Chalcedony Quantity: 2
Chalcedony Certificate: GemSelect
Product Description:
View Details
Add to Cart

14 ct Black Spinel, 12 x 11.7 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 14.00 carat weight Spinel

14.00ct (total)2 Pieces
$ 77.00
12 x 11.7 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 7.00 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12 x 11.7 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.93 ct Black Spinel, 12.1 x 11.9 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.93 carat weight Spinel

13.93ct (total)2 Pieces
$ 69.65
12.1 x 11.9 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.97 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.9 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.56 ct Black Spinel, 12.1 x 11.7 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.56 carat weight Spinel

13.56ct (total)2 Pieces
$ 74.58
12.1 x 11.7 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.78 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.7 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.95 ct Black Spinel, 12.1 x 11.9 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.95 carat weight Spinel

13.95ct (total)2 Pieces
$ 76.73
12.1 x 11.9 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.98 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.9 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.93 ct Black Spinel, 12.1 x 11.8 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.93 carat weight Spinel

13.93ct (total)2 Pieces
$ 76.62
12.1 x 11.8 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.97 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.8 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

14.59 ct Black Spinel, 12.1 x 11.8 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 14.59 carat weight Spinel

14.59ct (total)2 Pieces
$ 80.25
12.1 x 11.8 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 7.30 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.8 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

14.66 ct Black Spinel, 11.8 x 12 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 14.66 carat weight Spinel

14.66ct (total)2 Pieces
$ 87.99
11.8 x 12 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 7.33 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 11.8 x 12 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.48 ct Black Spinel, 12.1 x 11.8 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.48 carat weight Spinel

13.48ct (total)2 Pieces
$ 74.14
12.1 x 11.8 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.74 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.8 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

13.46 ct Black Spinel, 12.1 x 11.8 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 13.46 carat weight Spinel

13.46ct (total)2 Pieces
$ 74.03
12.1 x 11.8 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 6.73 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.8 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart
6.90ct1 Piece
$ 34.50
12.2 x 12 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 6.90 ct Amethyst
Amethyst Shape: Carved Heart Amethyst
Amethyst Size: 12.2 x 12 mm Amethyst
Amethyst Color: Sangria Violet Amethyst
Amethyst Clarity: Transparent Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
View Details
Add to Cart

14.04 ct Black Spinel, 12.1 x 11.8 mm Heart Rose Cut From Thailand

Natural Spinel, Qty: 2 pcs | 14.04 carat weight Spinel

14.04ct (total)2 Pieces
$ 77.22
12.1 x 11.8 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 7.02 ct Spinel
Spinel Shape: Heart Rose-Cut Spinel
Spinel Size: 12.1 x 11.8 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
View Details
Add to Cart

Some people by gems by color or price, but for many, it may be better to buy gems by size - especially if you're in need to a gem to replace another previous item that was lost or damaged: Calibrated heart shaped facet cut gems and cabochon gems in 12 x 12 mm size. Buy a wide range of calibrated gemstones by size at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not meant nor expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often around 0.3 mm or slightly higher even. This small variance can usually be accommodated for standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Todo muy bien en la compra ahora esperar recibir el pedido.

Posted By MAGSMX in August, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

The site is very easy to use and I will continue to shop here. The quality is superb

Posted By Genia in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience! First time buyer

Posted By Todi89 in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

My only complaint is that there are so many beautiful and affordable stones that I get distracted from what I planned to order.

Posted By Phoenix in March, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Always an easy experience using Gem select.

Posted By Jeff in November, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Love Gem select. great gems for the price. Can't beet them

Posted By Apps in September, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

After having looked at other purchasing sites, this is my first choice.

Posted By MJC in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Selection ability was straightforward and easy.

Posted By Dave in May, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Everthing about researching and ordering from Gemselect was easy and uncomplicated. In the past I had payment problems, but your customer rep, Thomas, helped me get everything right. I will continue using Gemselet in the future for these reasons.

Posted By WildwillyfromArizona in August, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I am excited for my first order, search tools were a great help to find the sapphire I needed for my next project! Thank you

Posted By Sue in April, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

The gems were as described, which is kind of rare these days. I am happy with the purchase, and delevery on time.

Posted By T-bone in October, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I enjoyed browsing though different varieties of rubies. I felt that the experience was simple and easy to navigate!

Posted By Daws in July, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to navigate

Posted By G Funk in December, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

Posted By Kittypie070 in April, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023
Source: Bizrate
STAY IN TOUCH | NEWSLETTER
*You're signing up to receive GemSelect promotional email.
Partners and Trust Payment options

Switch to Mobile Version

Copyright © 2005-2024 GemSelect.com all rights reserved.

Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.

932

Continue Shopping
Checkout
Continue Shopping
Checkout