Heart|Lab Grown|IGI

12.56ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG813643585

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG813643585

Diamond specifications and retailer prices

From $5,116 AUD

$3,594 USD

As of October 27, 2026

Save $15,804 AUD (76%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $20,920 AUD at Taylor and Hart · As of October 30, 2026

View at Taylor and Hart

About this 12.56ct lab-grown heart diamond

This 12.56ct lab-grown heart sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG813643585 or 813643585. Listed at 16 retailers as of October 27, 2026, with prices from $5,116 to $20,920, a $15,804 spread on the same certified stone. Taylor and Hart lists it at $20,920. 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

12.56

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle39.6°

Pavilion angle35.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG813643585

Dimensions16.63 × 14.58 × 8.49 mm

L/W Ratio1.14

Girdle conditionFaceted

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG813643585

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

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

Price History

Last verified: Oct 27

Current: $9,187 AUD|Low: $3,889 AUD|High: $20,920 AUD|Avg: $10,526 AUD|+7.7%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Taylor and Hart

October 29, 2026

Retailer 2$5,730 AUD

Retailer 4$5,936 AUD

Retailer 10$6,363 AUD

Retailer 3$7,947 AUD

Retailer 7$8,026 AUD

Retailer 5$8,563 AUD

Retailer 1$9,187 AUD

Retailer 6$11,124 AUD

Retailer 8$14,919 AUD

Retailer 9$15,919 AUD

Taylor and Hart$20,920 AUD

38 data points across 11 retailers

16 retailers$5,116 AUD to $20,920 AUD

Cheapest Retailer

$5,116 AUD

$3,594 USD

Retailer 2

$5,568 AUD

$3,911 USD

View

Retailer 3

$5,730 AUD

$4,025 USD

View

Final sale: no returns

Retailer 4

$5,935 AUD

$4,169 USD

View

Price last confirmed 18 days ago

Retailer 5

$5,935 AUD

$4,169 USD

View

Retailer 6

$5,936 AUD

$4,170 USD

View

Retailer 7

$6,363 AUD

$4,470 USD

View

B+

Retailer 8

$7,417 AUD

$5,210 USD

View

B+

Retailer 9

$7,947 AUD

£4,395 GBP

View

B+

Retailer 10

$8,026 AUD

$5,638 USD

View

B+

Retailer 11

$8,563 AUD

$6,015 USD

View

B+

Retailer 12

$9,187 AUD

ZAR 104,253 ZAR

View

Retailer 13

$11,124 AUD

View

Price last confirmed 8 days ago

Retailer 14

$14,919 AUD

$10,480 USD

View

Retailer 15

$15,919 AUD

$11,182 USD

View

Most Expensive

Taylor and Hart

97C2D4F · Oct 30

$20,920 AUD

$14,695 USD

View

15 more retailers have this diamond

Prices start from $5,116 AUDSave up to $15,804 AUD

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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12.56ct Heart

$5,116 AUD