Heart|Lab Grown|IGI

5.51ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG687554778

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG687554778

Diamond specifications and retailer prices

From $1,576 CAD

$1,128 USD

As of October 29, 2026

Save $4,122 CAD (72%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $5,697 CAD at Taylor and Hart · As of October 30, 2026

View at Taylor and Hart

About this 5.51ct lab-grown heart diamond

This 5.51ct lab-grown heart sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG687554778 or 687554778. Listed at 17 retailers as of October 29, 2026, with prices from $1,576 to $5,697, a $4,122 spread on the same certified stone. Taylor and Hart lists it at $5,697. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.51

Carat

Color

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.4°

Pavilion angle39.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG687554778

Dimensions10.80 × 11.91 × 7.38 mm

L/W Ratio1.10

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG687554778

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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

Price History

Last verified: Oct 29

Current: $2,355 CAD|Low: $1,524 CAD|High: $5,697 CAD|Avg: $3,405 CAD|-3.4%

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

Taylor and Hart

October 31, 2026

Retailer 4$1,576 CAD

Retailer 5$1,641 CAD

Retailer 8$1,823 CAD

Retailer 3$2,246 CAD

Retailer 1$2,355 CAD

Retailer 9$2,609 CAD

Retailer 2$3,309 CAD

Retailer 6$3,320 CAD

Retailer 11$3,414 CAD

Retailer 12$4,185 CAD

Retailer 10$5,025 CAD

Retailer 13$5,067 CAD

Retailer 7$5,571 CAD

Taylor and Hart$5,697 CAD

36 data points across 14 retailers

17 retailers$1,576 CAD to $5,697 CAD

Retailer 1

$1,359 CAD

$973 USD

Price last confirmed 28 days ago

Retailer 2

$1,539 CAD

$1,102 USD

View

Price last confirmed 32 days ago

Retailer 3

$1,576 CAD

$1,128 USD

View

Final sale: no returns

Retailer 4

$1,641 CAD

$1,175 USD

View

Price last confirmed 27 days ago

Retailer 5

$1,823 CAD

$1,305 USD

View

Retailer 6

$2,246 CAD

$1,608 USD

View

Retailer 7

$2,355 CAD

£1,327 GBP

View

Retailer 8

$2,609 CAD

$1,868 USD

View

Retailer 9

$3,077 CAD

$2,203 USD

View

Price last confirmed 30 days ago

Retailer 10

$3,309 CAD

A$3,644 AUD

View

Price last confirmed 9 days ago

B+

Retailer 11

$3,320 CAD

ZAR 38,392 ZAR

View

B+

Retailer 12

$3,414 CAD

$2,444 USD

View

B+

Retailer 13

$4,185 CAD

$2,996 USD

View

Retailer 14

$5,025 CAD

$3,598 USD

View

Retailer 15

$5,067 CAD

$3,627 USD

View

Retailer 16

$5,571 CAD

£3,140 GBP

View

Most Expensive

Taylor and Hart

TCTIOL4 · Oct 30

$5,697 CAD

$4,079 USD

View

16 more retailers have this diamond

Prices start from $1,576 CADSave up to $4,122 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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5.51ct Heart

$1,576 CAD