Radiant|Lab Grown|IGI

5.28ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG780661346

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

Certificate IGI LG780661346

Diamond specifications and retailer prices

From €7,775 EUR

$8,686 USD

As of October 30, 2026

Save €17,339 EUR (69%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: €25,114 EUR at Frank Darling · As of October 31, 2026

View at Frank Darling

About this 5.28ct lab-grown radiant diamond

This 5.28ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780661346 or 780661346. Listed at 15 retailers as of October 30, 2026, with prices from €7,775 to €25,114, a €17,339 spread on the same certified stone. Frank Darling lists it at €25,114. 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

5.28

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle41.9°

Pavilion angle33.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG780661346

Dimensions12.25 × 8.73 × 5.59 mm

L/W Ratio1.40

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 LG780661346

Side View

Caratlytics Score

How it works →

A+

Exceptional

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 30

Current: €25,114 EUR|Low: €7,775 EUR|High: €54,332 EUR|Avg: €16,147 EUR|-18.3%

Frank Darling

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

October 30, 2026

Retailer 10€7,775 EUR

Retailer 6€7,832 EUR

Retailer 12€7,895 EUR

Retailer 4€8,085 EUR

Retailer 15€8,933 EUR

Retailer 13€10,032 EUR

Retailer 11€10,434 EUR

Retailer 9€10,781 EUR

Retailer 3€11,196 EUR

Retailer 7€11,230 EUR

Retailer 2€15,915 EUR

Retailer 5€17,536 EUR

Retailer 8€17,864 EUR

Frank Darling€25,114 EUR

Retailer 14€48,514 EUR

39 data points across 15 retailers

15 retailers€7,775 EUR to €25,114 EUR

A+

Cheapest Retailer

€7,775 EUR

$8,686 USD

Retailer 2

€7,832 EUR

$8,750 USD

View

Retailer 3

€7,895 EUR

$8,820 USD

View

Retailer 4

€8,085 EUR

$9,033 USD

View

Retailer 5

€8,933 EUR

$9,980 USD

View

Retailer 6

€10,032 EUR

$11,208 USD

View

Retailer 7

€10,434 EUR

$11,657 USD

View

Retailer 8

€10,781 EUR

$12,045 USD

View

Retailer 9

€11,196 EUR

$12,508 USD

View

Retailer 10

€11,230 EUR

$12,546 USD

View

Final sale: no returns

Retailer 11

€15,915 EUR

$17,780 USD

View

Retailer 12

€17,536 EUR

View

Price last confirmed 8 days ago

B+

Retailer 13

€17,864 EUR

£15,715 GBP

View

Most Expensive

B+

Frank Darling

P82C-5EL · Oct 31

€25,114 EUR

$28,057 USD

View

13 more retailers have this diamond

Prices start from €7,775 EURSave up to €17,339 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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A+

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