Heart|Lab Grown|IGI

12.13ct G VS1 Heart Lab Grown Diamond

EX • G/VS1 • IGI LG628489578

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG628489578

Diamond specifications and retailer prices

From $7,753 NZD

£3,435 GBP

As of November 2, 2026

Save $26,795 NZD (78%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: $34,548 NZD at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 12.13ct lab-grown heart diamond

This 12.13ct 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 LG628489578 or 628489578. Listed at 20 retailers as of October 31, 2026, with prices from $7,753 to $34,548, a $26,795 spread on the same certified stone. Taylor and Hart lists it at $34,548. 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

12.13

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.5°

Pavilion angle39.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG628489578

Dimensions13.66 × 16.11 × 9.45 mm

L/W Ratio1.18

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG628489578

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: $12,430 NZD|Low: $7,751 NZD|High: $26,832 NZD|Avg: $14,198 NZD|-0.5%

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

Retailer 15

Retailer 16

November 3, 2026

Retailer 9$7,753 NZD

Retailer 15$8,323 NZD

Retailer 5$9,320 NZD

Retailer 4$9,654 NZD

Retailer 16$9,654 NZD

Retailer 12$9,660 NZD

Retailer 8$9,759 NZD

Retailer 3$12,063 NZD

Retailer 14$12,329 NZD

Retailer 1$12,430 NZD

Retailer 2$14,928 NZD

Retailer 13$14,943 NZD

Retailer 11$18,109 NZD

Retailer 10$18,288 NZD

Retailer 7$26,608 NZD

Retailer 6$26,832 NZD

41 data points across 16 retailers

20 retailers$7,753 NZD to $34,548 NZD

Cheapest Retailer

$7,753 NZD

£3,435 GBP

Retailer 2

$8,323 NZD

$4,683 USD

View

Retailer 3

$8,721 NZD

$4,907 USD

View

Retailer 4

$9,191 NZD

HK$40,400 HKD

View

Retailer 5

$9,320 NZD

$5,244 USD

View

Final sale: no returns

Retailer 6

$9,654 NZD

$5,432 USD

View

Retailer 7

$9,654 NZD

$5,432 USD

View

Price last confirmed 21 days ago

Retailer 8

$9,660 NZD

$5,435 USD

View

Retailer 9

$9,759 NZD

$5,491 USD

View

B+

Retailer 10

$12,063 NZD

$6,787 USD

View

B+

Retailer 11

$12,329 NZD

$6,937 USD

View

B+

Retailer 12

$12,430 NZD

£5,507 GBP

View

B+

Retailer 13

$14,928 NZD

$8,399 USD

View

B+

Retailer 14

$14,943 NZD

ZAR 135,824 ZAR

View

Retailer 15

$16,829 NZD

$9,469 USD

View

Retailer 16

$18,109 NZD

$10,189 USD

View

Retailer 17

$18,288 NZD

A$15,830 AUD

View

Retailer 18

$26,608 NZD

SGD 20,231 SGD

View

Retailer 19

$26,832 NZD

$15,097 USD

View

Most Expensive

Taylor and Hart

7TQ4J77 · Oct 31

$34,548 NZD

$19,438 USD

View

19 more retailers have this diamond

Prices start from $7,753 NZDSave up to $26,795 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

12.13ct Heart

$7,753 NZD