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 $7,367 NZD

$4,145 USD

As of November 3, 2026

Save $30,545 NZD (81%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: $37,912 NZD at With Clarity · As of November 3, 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 3, 2026, with prices from $7,367 to $37,912, a $30,545 spread on the same certified stone. With Clarity lists it at $37,912. 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 3

Current: $7,367 NZD|Low: $6,317 NZD|High: $37,912 NZD|Avg: $12,108 NZD

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 3, 2026

Retailer 10$6,580 NZD

Retailer 1$7,367 NZD

Retailer 3$7,632 NZD

Retailer 8$7,634 NZD

Retailer 4$7,989 NZD

Retailer 5$9,407 NZD

Retailer 6$9,979 NZD

Retailer 11$11,028 NZD

Retailer 9$11,812 NZD

Retailer 7$14,300 NZD

Retailer 2$18,345 NZD

Retailer 12$24,793 NZD

With Clarity$37,912 NZD

37 data points across 13 retailers

18 retailers$7,367 NZD to $37,912 NZD

Retailer 1

$7,157 NZD

$4,027 USD

Price last confirmed 35 days ago

Retailer 2

$7,367 NZD

$4,145 USD

View

Final sale: no returns

Retailer 3

$7,632 NZD

$4,294 USD

View

Price last confirmed 31 days ago

Retailer 4

$7,634 NZD

$4,295 USD

View

Retailer 5

$7,989 NZD

$4,495 USD

View

Retailer 6

$9,407 NZD

$5,293 USD

View

Retailer 7

$9,537 NZD

$5,366 USD

View

Price last confirmed 33 days ago

Retailer 8

$9,979 NZD

£4,421 GBP

View

Retailer 9

$11,028 NZD

$6,205 USD

View

B+

Retailer 10

$11,812 NZD

ZAR 107,363 ZAR

View

B+

Retailer 11

$14,300 NZD

A$12,378 AUD

View

B+

Retailer 12

$16,643 NZD

$9,364 USD

View

Retailer 13

$18,345 NZD

$10,322 USD

View

Retailer 14

$19,211 NZD

$10,809 USD

View

Retailer 15

$21,186 NZD

$11,921 USD

View

Retailer 16

$24,793 NZD

$13,950 USD

View

Retailer 17

$26,949 NZD

$15,163 USD

View

Most Expensive

With Clarity

720520483 · Nov 3

$37,912 NZD

$21,331 USD

View

17 more retailers have this diamond

Prices start from $7,367 NZDSave up to $30,545 NZD

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.

Similar diamonds

12.31ct Heart

$7,367 NZD