Round|Lab Grown|IGI

4.05ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG775630415

Shape and cutting style on the report: Round brilliant

Certificate IGI LG775630415

Diamond specifications and retailer prices

From €2,647 EUR

$2,957 USD

As of October 31, 2026

Save €7,190 EUR (73%) vs most expensive(unlock to see where)

26 retailers carry this diamond

Most expensive: €9,836 EUR at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 4.05ct lab-grown round diamond

This 4.05ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG775630415 or 775630415. Listed at 26 retailers as of October 31, 2026, with prices from €2,647 to €9,836, a €7,190 spread on the same certified stone. Taylor and Hart lists it at €9,836. 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

4.05

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.5°

Pavilion angle40.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG775630415

Dimensions10.26 × 10.21 × 6.31 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG775630415

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 31

Current: €3,764 EUR|Low: €1,770 EUR|High: €10,055 EUR|Avg: €4,603 EUR|+8.6%

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

Taylor and Hart

November 1, 2026

Retailer 7€2,641 EUR

Retailer 4€2,723 EUR

Retailer 6€2,815 EUR

Retailer 13€2,821 EUR

Retailer 8€2,824 EUR

Retailer 15€2,934 EUR

Retailer 1€3,764 EUR

Retailer 2€3,835 EUR

Retailer 3€3,878 EUR

Retailer 11€4,141 EUR

Retailer 10€4,391 EUR

Retailer 14€5,983 EUR

Retailer 5€6,041 EUR

Retailer 9€7,088 EUR

Retailer 12€7,565 EUR

Taylor and Hart€9,836 EUR

33 data points across 16 retailers

26 retailers€2,647 EUR to €9,836 EUR

Retailer 1

€1,863 EUR

$2,081 USD

Price last confirmed 30 days ago

Retailer 2

€2,250 EUR

$2,514 USD

View

Price last confirmed 29 days ago

Retailer 3

€2,532 EUR

$2,829 USD

View

Price last confirmed 42 days ago

Retailer 4

€2,641 EUR

$2,950 USD

View

Price last confirmed 18 days ago

Retailer 5

€2,641 EUR

$2,950 USD

View

Price last confirmed 22 days ago

Retailer 6

€2,647 EUR

$2,957 USD

View

Retailer 7

€2,723 EUR

$3,042 USD

View

Final sale: no returns

Retailer 8

€2,815 EUR

$3,145 USD

View

Price last confirmed 19 days ago

Retailer 9

€2,821 EUR

$3,152 USD

View

Price last confirmed 7 days ago

Retailer 10

€2,821 EUR

$3,152 USD

View

Retailer 11

€2,824 EUR

$3,155 USD

View

Retailer 12

€2,934 EUR

$3,278 USD

View

Retailer 13

€3,093 EUR

$3,456 USD

View

Price last confirmed 41 days ago

Retailer 14

€3,764 EUR

£3,312 GBP

View

Retailer 15

€3,835 EUR

$4,284 USD

View

Retailer 16

€3,869 EUR

$4,323 USD

View

Price last confirmed 13 days ago

Retailer 17

€3,878 EUR

$4,333 USD

View

Retailer 18

€3,878 EUR

$4,333 USD

View

Price last confirmed 7 days ago

Retailer 19

€4,141 EUR

$4,626 USD

View

Retailer 20

€4,391 EUR

$4,906 USD

View

Retailer 21

€5,983 EUR

ZAR 107,977 ZAR

View

Price last confirmed 7 days ago

Retailer 22

€6,041 EUR

A$10,383 AUD

View

Price last confirmed 9 days ago

B+

Retailer 23

€7,088 EUR

$7,919 USD

View

B+

Retailer 24

€7,565 EUR

£6,655 GBP

View

Retailer 25

€8,082 EUR

£7,110 GBP

View

Price last confirmed 22 days ago

Most Expensive

Taylor and Hart

9BVUXIU · Oct 31

€9,836 EUR

$10,989 USD

View

25 more retailers have this diamond

Prices start from €2,647 EURSave up to €7,190 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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4.05ct Round

€2,647 EUR