Radiant|Lab Grown|IGI

4.08ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG780663155

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG780663155

Diamond specifications and retailer prices

From €3,601 EUR

$4,023 USD

As of October 30, 2026

Save €10,870 EUR (75%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: €14,471 EUR at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 4.08ct lab-grown radiant diamond

This 4.08ct lab-grown radiant 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 LG780663155 or 780663155. Listed at 14 retailers as of October 30, 2026, with prices from €3,601 to €14,471, a €10,870 spread on the same certified stone. Taylor and Hart lists it at €14,471. 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

4.08

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle42.4°

Pavilion angle33.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG780663155

Dimensions11.35 × 7.97 × 5.23 mm

L/W Ratio1.42

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 LG780663155

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: €6,646 EUR|Low: €3,601 EUR|High: €19,088 EUR|Avg: €8,787 EUR|-27.5%

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

October 31, 2026

Retailer 11€3,601 EUR

Retailer 12€3,810 EUR

Retailer 2€5,156 EUR

Retailer 5€5,356 EUR

Retailer 10€6,252 EUR

Retailer 1€6,646 EUR

Retailer 6€8,689 EUR

Retailer 7€8,792 EUR

Retailer 3€9,340 EUR

Retailer 8€10,927 EUR

Retailer 4€11,153 EUR

Retailer 9€14,252 EUR

Taylor and Hart€14,471 EUR

38 data points across 13 retailers

14 retailers€3,601 EUR to €14,471 EUR

Cheapest Retailer

€3,601 EUR

$4,023 USD

Retailer 2

€3,810 EUR

$4,257 USD

View

Retailer 3

€5,156 EUR

HK$45,000 HKD

View

Retailer 4

€5,356 EUR

£4,712 GBP

View

Retailer 5

€6,252 EUR

$6,985 USD

View

Retailer 6

€6,638 EUR

$7,416 USD

View

Price last confirmed 61 days ago

B+

Retailer 7

€6,646 EUR

View

B+

Retailer 8

€8,689 EUR

ZAR 156,821 ZAR

View

B+

Retailer 9

€8,792 EUR

£7,734 GBP

View

B+

Retailer 10

€9,340 EUR

$10,435 USD

View

B+

Retailer 11

€10,927 EUR

$12,207 USD

View

Retailer 12

€11,153 EUR

$12,460 USD

View

Retailer 13

€14,252 EUR

$15,922 USD

View

Most Expensive

Taylor and Hart

END0SA5 · Oct 31

€14,471 EUR

$16,167 USD

View

13 more retailers have this diamond

Prices start from €3,601 EURSave up to €10,870 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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