Heart|Lab Grown|IGI

1.88ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG799636873

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG799636873

Diamond specifications and retailer prices

From $3,447 NZD

$1,943 USD

As of October 31, 2026

Save $4,395 NZD (56%) vs most expensive(unlock to see where)

8 retailers carry this diamond

Most expensive: $7,842 NZD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 1.88ct lab-grown heart diamond

This 1.88ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799636873 or 799636873. Listed at 8 retailers as of October 31, 2026, with prices from $3,447 to $7,842, a $4,395 spread on the same certified stone. Brilliant Earth lists it at $7,842. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.88

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.8°

Pavilion angle37.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG799636873

Dimensions7.58 × 8.48 × 4.92 mm

L/W Ratio1.12

Girdle conditionFaceted

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG799636873

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

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

Price History

Last verified: Oct 31

Current: $7,842 NZD|Low: $1,912 NZD|High: $15,791 NZD|Avg: $6,925 NZD|-28.2%

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

October 30, 2026

Retailer 6$1,914 NZD

Retailer 7$2,456 NZD

Retailer 2$3,447 NZD

Retailer 10$4,090 NZD

Retailer 3$5,331 NZD

Retailer 4$5,451 NZD

Retailer 12$5,515 NZD

Retailer 8$6,343 NZD

Retailer 11$6,428 NZD

Brilliant Earth$7,842 NZD

Retailer 13$10,383 NZD

Retailer 9$11,604 NZD

Retailer 5$12,506 NZD

15 data points across 13 retailers

8 retailers$3,447 NZD to $7,842 NZD

Retailer 1

$1,306 NZD

$736 USD

Price last confirmed 21 days ago

Retailer 2

$1,914 NZD

£850 GBP

View

Price last confirmed 19 days ago

Retailer 3

$1,934 NZD

$1,090 USD

View

Price last confirmed 33 days ago

Retailer 4

$2,456 NZD

$1,384 USD

View

Price last confirmed 20 days ago

B+

Retailer 5

$3,447 NZD

$1,943 USD

View

Retailer 6

$4,702 NZD

$2,650 USD

View

Price last confirmed 22 days ago

Retailer 7

$6,343 NZD

£2,815 GBP

View

Price last confirmed 21 days ago

Most Expensive

Brilliant Earth

21412023Y · Oct 31

$7,842 NZD

$4,420 USD

View

7 more retailers have this diamond

Prices start from $3,447 NZDSave up to $4,395 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.

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B+

1.88ct Heart

$3,447 NZD