Heart|Lab Grown|IGI

12.31ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG720520483

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG720520483

Diamond specifications and retailer prices

From $6,129 AUD

$4,295 USD

As of November 2, 2026

Save $24,309 AUD (80%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: $30,437 AUD at With Clarity · As of November 2, 2026

View at With Clarity

About this 12.31ct lab-grown heart diamond

This 12.31ct lab-grown heart sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG720520483 or 720520483. Listed at 18 retailers as of November 2, 2026, with prices from $6,129 to $30,437, a $24,309 spread on the same certified stone. With Clarity lists it at $30,437. 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

12.31

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36°

Pavilion angle37.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG720520483

Dimensions14.26 × 15.98 × 8.97 mm

L/W Ratio1.12

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG720520483

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: Nov 2

Current: $7,553 AUD|Low: $5,071 AUD|High: $30,437 AUD|Avg: $9,684 AUD|-3.1%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

With Clarity

November 2, 2026

Retailer 10$5,282 AUD

Retailer 3$6,127 AUD

Retailer 8$6,129 AUD

Retailer 4$6,414 AUD

Retailer 7$6,569 AUD

Retailer 1$7,553 AUD

Retailer 5$8,012 AUD

Retailer 11$8,854 AUD

Retailer 9$9,483 AUD

Retailer 6$11,480 AUD

Retailer 2$14,728 AUD

Retailer 12$19,905 AUD

With Clarity$30,437 AUD

36 data points across 13 retailers

18 retailers$6,129 AUD to $30,437 AUD

Retailer 1

$5,746 AUD

$4,027 USD

Price last confirmed 34 days ago

Retailer 2

$6,127 AUD

$4,294 USD

View

Price last confirmed 30 days ago

Retailer 3

$6,129 AUD

$4,295 USD

View

Retailer 4

$6,414 AUD

$4,495 USD

View

Retailer 5

$6,569 AUD

$4,604 USD

View

Final sale: no returns

Retailer 6

$7,553 AUD

$5,293 USD

View

Retailer 7

$7,657 AUD

$5,366 USD

View

Price last confirmed 33 days ago

Retailer 8

$8,012 AUD

£4,421 GBP

View

Retailer 9

$8,854 AUD

$6,205 USD

View

B+

Retailer 10

$9,483 AUD

ZAR 107,363 ZAR

View

B+

Retailer 11

$11,480 AUD

View

B+

Retailer 12

$13,361 AUD

$9,364 USD

View

Retailer 13

$14,728 AUD

$10,322 USD

View

Retailer 14

$15,423 AUD

$10,809 USD

View

Retailer 15

$17,009 AUD

$11,921 USD

View

Retailer 16

$19,905 AUD

$13,950 USD

View

Retailer 17

$21,636 AUD

$15,163 USD

View

Most Expensive

With Clarity

720520483 · Nov 2

$30,437 AUD

$21,331 USD

View

17 more retailers have this diamond

Prices start from $6,129 AUDSave up to $24,309 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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12.31ct Heart

$6,129 AUD