Round|Lab Grown|IGI

5.21ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG595367198

Shape and cutting style on the report: Round brilliant

Certificate IGI LG595367198

Diamond specifications and retailer prices

From €12,117 EUR

As of November 4, 2026

Save €28,557 EUR (70%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: €40,674 EUR at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 5.21ct lab-grown round diamond

This 5.21ct lab-grown round sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG595367198 or 595367198. Listed at 15 retailers as of October 31, 2026, with prices from €12,117 to €40,674, a €28,557 spread on the same certified stone. Taylor and Hart lists it at €40,674. 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

5.21

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle32.8°

Pavilion angle40.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG595367198

Dimensions11.34 × 11.37 × 6.72 mm

L/W Ratio1.00

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 LG595367198

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 4

Current: €18,129 EUR|Low: €12,068 EUR|High: €41,420 EUR|Avg: €20,434 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

November 6, 2026

Retailer 7€12,117 EUR

Retailer 12€14,009 EUR

Retailer 3€14,346 EUR

Retailer 4€15,231 EUR

Retailer 5€15,691 EUR

Retailer 2€16,077 EUR

Retailer 13€16,251 EUR

Retailer 11€16,482 EUR

Retailer 1€18,129 EUR

Retailer 6€25,459 EUR

Retailer 10€29,367 EUR

Retailer 8€33,122 EUR

Retailer 9€33,371 EUR

43 data points across 13 retailers

15 retailers€12,117 EUR to €40,674 EUR

Cheapest Retailer

€12,117 EUR

B+

Retailer 2

€14,009 EUR

View

B+

Retailer 3

€14,346 EUR

View

B+

Retailer 4

€15,231 EUR

View

B+

Retailer 5

€15,691 EUR

View

Final sale: no returns

B+

Retailer 6

€16,077 EUR

View

B+

Retailer 7

€16,251 EUR

View

Retailer 8

€16,251 EUR

View

Price last confirmed 21 days ago

B+

Retailer 9

€16,482 EUR

View

B+

Retailer 10

€18,129 EUR

View

B+

Retailer 11

€25,459 EUR

View

Retailer 12

€29,367 EUR

View

Retailer 13

€33,122 EUR

View

Retailer 14

€33,371 EUR

View

Most Expensive

Taylor and Hart

VSXP5BQ · Oct 31

€40,674 EUR

$45,653 USD

View

14 more retailers have this diamond

Prices start from €12,117 EURSave up to €28,557 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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5.21ct Round

€12,117 EUR