Heart|Lab Grown|IGI

6.66ct F VVS2 Heart Lab Grown Diamond

ID • F/VVS2 • IGI LG657463791

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG657463791

Diamond specifications and retailer prices

From $2,701 NZD

$1,520 USD

As of November 3, 2026

Save $10,397 NZD (79%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $13,099 NZD at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 6.66ct lab-grown heart diamond

This 6.66ct lab-grown heart sits in the over five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG657463791 or 657463791. Listed at 17 retailers as of November 2, 2026, with prices from $2,701 to $13,099, a $10,397 spread on the same certified stone. Brilliant Earth lists it at $13,099. 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

6.66

Carat

Colour

VVS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.5°

Pavilion angle40.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG657463791

Dimensions12.77 × 12.13 × 7.65 mm

L/W Ratio1.05

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 LG657463791

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: $13,099 NZD|Low: $2,358 NZD|High: $24,740 NZD|Avg: $6,241 NZD|-47.0%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

November 3, 2026

Retailer 5$2,428 NZD

Retailer 10$2,701 NZD

Retailer 6$3,439 NZD

Retailer 13$3,802 NZD

Retailer 7$4,111 NZD

Retailer 9$4,436 NZD

Retailer 2$4,637 NZD

Retailer 11$4,719 NZD

Retailer 12$5,730 NZD

Retailer 4$6,995 NZD

Retailer 8$7,692 NZD

Retailer 3$8,383 NZD

Brilliant Earth$13,099 NZD

40 data points across 13 retailers

17 retailers$2,701 NZD to $13,099 NZD

Retailer 1

$2,008 NZD

$1,130 USD

Price last confirmed 31 days ago

Retailer 2

$2,277 NZD

$1,281 USD

View

Price last confirmed 35 days ago

Retailer 3

$2,428 NZD

$1,366 USD

View

Price last confirmed 30 days ago

Retailer 4

$2,701 NZD

$1,520 USD

View

Retailer 5

$3,439 NZD

£1,523 GBP

View

Retailer 6

$3,802 NZD

$2,139 USD

View

B+

Retailer 7

$4,111 NZD

€2,203 EUR

View

B+

Retailer 8

$4,436 NZD

A$3,840 AUD

View

Retailer 9

$4,550 NZD

$2,560 USD

View

Price last confirmed 33 days ago

B+

Retailer 10

$4,637 NZD

ZAR 42,152 ZAR

View

B+

Retailer 11

$4,719 NZD

$2,655 USD

View

B+

Retailer 12

$5,730 NZD

$3,224 USD

View

Retailer 13

$6,995 NZD

$3,936 USD

View

B+

Retailer 14

$7,692 NZD

£3,408 GBP

View

Retailer 15

$8,383 NZD

$4,717 USD

View

Retailer 16

$9,836 NZD

A$8,514 AUD

View

Price last confirmed 122 days ago

Most Expensive

Brilliant Earth

21027063A · Nov 2

$13,099 NZD

$7,370 USD

View

16 more retailers have this diamond

Prices start from $2,701 NZDSave up to $10,397 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

6.66ct Heart

$2,701 NZD