Cushion|Lab Grown|IGI

4.03ct F IF Cushion Lab Grown Diamond

ID • F/IF • IGI LG720586727

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG720586727

Diamond specifications and retailer prices

From €1,968 EUR

£1,732 GBP

As of November 1, 2026

Save €16,372 EUR (89%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: €18,340 EUR at Zales · As of October 30, 2026

View at Zales

About this 4.03ct lab-grown cushion diamond

This 4.03ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG720586727 or 720586727. Listed at 18 retailers as of October 30, 2026, with prices from €1,968 to €18,340, a €16,372 spread on the same certified stone. Zales lists it at €18,340. 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

4.03

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.3°

Pavilion angle38.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG720586727

Dimensions10.12 × 8.31 × 5.77 mm

L/W Ratio1.22

Girdle conditionFaceted

Culet sizePointed

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 LG720586727

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 1

Current: €6,411 EUR|Low: €1,968 EUR|High: €18,340 EUR|Avg: €6,437 EUR|-1.1%

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

Retailer 17

Zales

November 1, 2026

Retailer 11€1,968 EUR

Retailer 2€2,291 EUR

Retailer 3€2,356 EUR

Retailer 17€3,026 EUR

Retailer 9€3,033 EUR

Retailer 7€3,050 EUR

Retailer 13€3,599 EUR

Retailer 5€4,488 EUR

Retailer 14€5,030 EUR

Retailer 10€5,062 EUR

Retailer 1€6,411 EUR

Retailer 4€8,256 EUR

Retailer 12€9,069 EUR

Retailer 8€11,878 EUR

Retailer 16€12,780 EUR

Retailer 6€13,271 EUR

Retailer 15€18,340 EUR

Zales€18,340 EUR

38 data points across 18 retailers

18 retailers€1,968 EUR to €18,340 EUR

Cheapest Retailer

€1,968 EUR

£1,732 GBP

Retailer 2

€2,291 EUR

$2,560 USD

View

Retailer 3

€2,356 EUR

$2,632 USD

View

Retailer 4

€3,026 EUR

$3,381 USD

View

Retailer 5

€3,033 EUR

$3,388 USD

View

Retailer 6

€3,050 EUR

CA$4,732 CAD

View

Retailer 7

€3,599 EUR

View

Retailer 8

€4,488 EUR

£3,948 GBP

View

Retailer 9

€5,030 EUR

ZAR 90,791 ZAR

View

Retailer 10

€5,062 EUR

A$8,701 AUD

View

B+

Retailer 11

€6,411 EUR

£5,640 GBP

View

Retailer 12

€8,256 EUR

$9,223 USD

View

B+

Retailer 13

€9,069 EUR

A$15,587 AUD

View

Retailer 14

€11,878 EUR

$13,270 USD

View

Retailer 15

€12,780 EUR

$14,278 USD

View

Retailer 16

€13,271 EUR

$14,827 USD

View

Retailer 17

€18,340 EUR

$20,490 USD

View

Most Expensive

Zales

525135181 · Oct 30

€18,340 EUR

$20,490 USD

View

17 more retailers have this diamond

Prices start from €1,968 EURSave up to €16,372 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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4.03ct Cushion

€1,968 EUR