Heart|Lab Grown|IGI

1.91ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818681481

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818681481

Diamond specifications and retailer prices

From €633 EUR

$707 USD

As of October 30, 2026

Save €4,988 EUR (89%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: €5,621 EUR at Do Amore Diamonds · As of October 31, 2026

View at Do Amore Diamonds

About this 1.91ct lab-grown heart diamond

This 1.91ct 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 LG818681481 or 818681481. Listed at 12 retailers as of October 30, 2026, with prices from €633 to €5,621, a €4,988 spread on the same certified stone. Do Amore Diamonds lists it at €5,621. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.6°

Pavilion angle41.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG818681481

Dimensions7.66 × 8.39 × 5.22 mm

L/W Ratio1.10

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG818681481

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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

Price History

Last verified: Oct 30

Current: €5,621 EUR|Low: €633 EUR|High: €9,667 EUR|Avg: €2,581 EUR|-41.9%

Do Amore Diamonds

Retailer 2

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Retailer 12

Retailer 13

November 1, 2026

Retailer 8€633 EUR

Retailer 13€688 EUR

Retailer 3€913 EUR

Retailer 9€1,193 EUR

Retailer 4€1,195 EUR

Retailer 6€1,361 EUR

Retailer 11€1,727 EUR

Retailer 10€1,808 EUR

Retailer 12€2,278 EUR

Retailer 2€3,037 EUR

Retailer 7€4,019 EUR

Retailer 5€5,008 EUR

Do Amore Diamonds€5,621 EUR

27 data points across 13 retailers

12 retailers€633 EUR to €5,621 EUR

Cheapest Retailer

€633 EUR

$707 USD

Retailer 2

€688 EUR

$769 USD

View

Retailer 3

€913 EUR

$1,020 USD

View

Retailer 4

€1,193 EUR

$1,333 USD

View

Retailer 5

€1,195 EUR

$1,335 USD

View

B+

Retailer 6

€1,361 EUR

View

B+

Retailer 7

€1,727 EUR

A$2,968 AUD

View

B+

Retailer 8

€1,808 EUR

$2,020 USD

View

B+

Retailer 9

€2,278 EUR

$2,545 USD

View

Retailer 10

€3,037 EUR

£2,672 GBP

View

Retailer 11

€4,019 EUR

$4,490 USD

View

Most Expensive

Do Amore Diamonds

27-B1165FDF8 · Oct 31

€5,621 EUR

$6,280 USD

View

11 more retailers have this diamond

Prices start from €633 EURSave up to €4,988 EUR

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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1.91ct Heart

€633 EUR