Heart|Lab Grown|IGI

3.31ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG844621799

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG844621799

Diamond specifications and retailer prices

From $3,855 USD

As of October 26, 2026

Save $17,022 USD (82%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $20,877 USD at With Clarity · As of October 30, 2026

View at With Clarity

About this 3.31ct lab-grown heart diamond

This 3.31ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG844621799 or 844621799. Listed at 16 retailers as of October 26, 2026, with prices from $3,855 to $20,877, a $17,022 spread on the same certified stone. With Clarity lists it at $20,877. 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

3.31

Carat

Color

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.4°

Pavilion angle42.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG844621799

Dimensions10.53 × 9.47 × 5.86 mm

L/W Ratio1.11

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 LG844621799

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: Oct 26

Current: $5,022 USD|Low: $3,855 USD|High: $20,877 USD|Avg: $8,940 USD|-0.2%

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

With Clarity

October 27, 2026

Retailer 5$3,855 USD

Retailer 12$4,189 USD

Retailer 15$4,207 USD

Retailer 2$4,360 USD

Retailer 3$4,710 USD

Retailer 1$5,022 USD

Retailer 10$5,602 USD

Retailer 8$6,975 USD

Retailer 9$9,025 USD

Retailer 7$9,277 USD

Retailer 11$9,730 USD

Retailer 16$10,603 USD

Retailer 13$11,082 USD

Retailer 14$12,250 USD

Retailer 6$14,839 USD

Retailer 4$15,862 USD

With Clarity$20,877 USD

16 data points across 17 retailers

16 retailers$3,855 USD to $20,877 USD

Cheapest Retailer

$3,855 USD

B+

Retailer 2

$4,189 USD

CA$5,818 CAD

View

B+

Retailer 3

$4,207 USD

View

B+

Retailer 4

$4,360 USD

View

B+

Retailer 5

$5,022 USD

£3,954 GBP

View

B+

Retailer 6

$5,602 USD

£4,411 GBP

View

B+

Retailer 7

$6,975 USD

View

Retailer 8

$9,025 USD

£7,106 GBP

View

Retailer 9

$9,277 USD

View

Retailer 10

$9,730 USD

ZAR 157,197 ZAR

View

Retailer 11

$10,603 USD

View

Retailer 12

$11,082 USD

View

Retailer 13

$12,250 USD

View

Retailer 14

$14,839 USD

View

Retailer 15

$15,862 USD

View

Price last confirmed 9 days ago

Most Expensive

With Clarity

844621799 · Oct 30

$20,877 USD

View

15 more retailers have this diamond

Prices start from $3,855 USDSave up to $17,022 USD

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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3.31ct Heart

$3,855 USD