Heart|Lab Grown|IGI

20.51ct G VS1 Heart Lab Grown Diamond

VG • G/VS1 • IGI LG720595533

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG720595533

Diamond specifications and retailer prices

From $16,510 CAD

$11,814 USD

As of November 2, 2026

Save $39,405 CAD (70%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $55,915 CAD at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 20.51ct lab-grown heart diamond

This 20.51ct lab-grown heart sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG720595533 or 720595533. Listed at 14 retailers as of October 31, 2026, with prices from $16,510 to $55,915, a $39,405 spread on the same certified stone. Taylor and Hart lists it at $55,915. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

20.51

Carat

Color

VS1

Clarity

Very Good

Cut

Specifications

CutVery Good

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle41.8°

Pavilion angle38.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG720595533

Dimensions16.59 × 17.88 × 10.68 mm

L/W Ratio1.08

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutVery Good

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG720595533

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2

Current: $36,116 CAD|Low: $15,850 CAD|High: $55,915 CAD|Avg: $24,675 CAD|-0.2%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Taylor and Hart

November 1, 2026

Retailer 10$16,510 CAD

Retailer 14$17,171 CAD

Retailer 3$17,452 CAD

Retailer 13$17,949 CAD

Retailer 4$18,490 CAD

Retailer 7$18,880 CAD

Retailer 2$19,153 CAD

Retailer 11$19,153 CAD

Retailer 9$20,321 CAD

Retailer 12$20,424 CAD

Retailer 6$22,178 CAD

Retailer 8$23,093 CAD

Retailer 1$36,116 CAD

Retailer 5$37,126 CAD

Taylor and Hart$55,915 CAD

16 data points across 15 retailers

14 retailers$16,510 CAD to $55,915 CAD

B+

Cheapest Retailer

$16,510 CAD

$11,814 USD

B+

Retailer 2

$17,171 CAD

$12,287 USD

View

B+

Retailer 3

$17,452 CAD

$12,488 USD

View

B+

Retailer 4

$17,949 CAD

$12,844 USD

View

B+

Retailer 5

$18,490 CAD

$13,231 USD

View

Final sale: no returns

Retailer 6

$18,880 CAD

$13,510 USD

View

B+

Retailer 7

$19,153 CAD

$13,705 USD

View

Retailer 8

$19,153 CAD

$13,705 USD

View

Price last confirmed 21 days ago

Retailer 9

$20,321 CAD

$14,541 USD

View

Retailer 10

$20,424 CAD

$14,615 USD

View

Retailer 11

$23,093 CAD

£13,011 GBP

View

Price last confirmed 14 days ago

Retailer 12

$36,116 CAD

A$39,759 AUD

View

Retailer 13

$37,126 CAD

$26,566 USD

View

Most Expensive

Taylor and Hart

GW5JPQB · Oct 31

$55,915 CAD

$40,011 USD

View

13 more retailers have this diamond

Prices start from $16,510 CADSave up to $39,405 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

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B+

20.51ct Heart

$16,510 CAD