Cushion|Lab Grown|IGI

4.18ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG811627555

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811627555

Diamond specifications and retailer prices

From €4,306 EUR

$4,811 USD

As of November 1, 2026

Save €11,976 EUR (74%) vs most expensive(unlock to see where)

13 retailers carry this diamond

Most expensive: €16,282 EUR at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 4.18ct lab-grown cushion diamond

This 4.18ct lab-grown cushion 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 LG811627555 or 811627555. Listed at 13 retailers as of October 31, 2026, with prices from €4,306 to €16,282, a €11,976 spread on the same certified stone. Taylor and Hart lists it at €16,282. 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

4.18

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle31.3°

Pavilion angle29.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG811627555

Dimensions11.02 × 8.26 × 5.29 mm

L/W Ratio1.33

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 LG811627555

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: Nov 1

Current: €9,451 EUR|Low: €4,306 EUR|High: €19,263 EUR|Avg: €8,466 EUR|-13.8%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Taylor and Hart

November 1, 2026

Retailer 12€4,306 EUR

Retailer 2€4,407 EUR

Retailer 4€4,565 EUR

Retailer 7€4,601 EUR

Retailer 8€5,476 EUR

Retailer 5€5,919 EUR

Retailer 3€6,425 EUR

Retailer 9€7,063 EUR

Retailer 11€8,540 EUR

Retailer 1€9,451 EUR

Retailer 6€9,715 EUR

Retailer 10€12,684 EUR

Taylor and Hart€16,282 EUR

41 data points across 13 retailers

13 retailers€4,306 EUR to €16,282 EUR

Cheapest Retailer

€4,306 EUR

$4,811 USD

Retailer 2

€4,407 EUR

$4,924 USD

View

Final sale: no returns

Retailer 3

€4,565 EUR

$5,100 USD

View

Price last confirmed 16 days ago

Retailer 4

€4,601 EUR

$5,140 USD

View

Retailer 5

€5,476 EUR

$6,118 USD

View

Retailer 6

€5,919 EUR

£5,207 GBP

View

Retailer 7

€6,425 EUR

£5,652 GBP

View

Retailer 8

€7,063 EUR

$7,891 USD

View

B+

Retailer 9

€8,540 EUR

$9,541 USD

View

B+

Retailer 10

€9,451 EUR

£8,314 GBP

View

B+

Retailer 11

€9,715 EUR

ZAR 175,337 ZAR

View

B+

Retailer 12

€12,684 EUR

$14,170 USD

View

Most Expensive

Taylor and Hart

5RC8QBX · Oct 31

€16,282 EUR

$18,191 USD

View

12 more retailers have this diamond

Prices start from €4,306 EURSave up to €11,976 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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