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Round|Lab Grown|IGI

5.18ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG821640847

Shape and cutting style on the report: Round brilliant

Certificate IGI LG821640847

Diamond specifications and retailer prices

From €4,980 EUR
As of November 6, 2026
Save €8,663 EUR (63%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €13,643 EUR at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

About this 5.18ct lab-grown round diamond

This 5.18ct 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 LG821640847 or 821640847. Listed at 8 retailers as of November 4, 2026, with prices from €4,980 to €13,643, a €8,663 spread on the same certified stone. Taylor and Hart lists it at €13,643. 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

5.18
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821640847
Dimensions11.02 × 11.06 × 6.84 mm
L/W Ratio1.00
Girdle conditionFaceted
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
Top View
11.02 mm11.06 mm5.18 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821640847
Side View
Table 59.0%Crown 35.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
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 6
Current: €4,980 EUR|Low: €4,721 EUR|High: €17,038 EUR|Avg: €7,464 EUR|-18.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Taylor and Hart
November 6, 2026
Retailer 7€4,721 EUR
Retailer 1€4,980 EUR
Retailer 5€5,582 EUR
Retailer 3€6,127 EUR
Retailer 4€6,802 EUR
Retailer 6€7,439 EUR
Retailer 2€8,248 EUR
Taylor and Hart€13,643 EUR

31 data points across 8 retailers

8 retailers€4,980 EUR to €13,643 EUR

Retailer 1
-
€4,721 EUR
Price last confirmed 46 days ago
A
Retailer 2
-
€4,980 EUR
View
A
Retailer 3
-
€5,582 EUR
View
A
Retailer 4
-
€6,127 EUR
View
A
Retailer 5
-
€6,802 EUR
View
A
Retailer 6
-
€7,439 EUR
View
A
Retailer 7
-
€8,248 EUR
View
Most Expensive
B+
Taylor and Hart
RP0ADFW · Nov 4
€13,643 EUR
$15,313 USD
View
7 more retailers have this diamond
Prices start from €4,980 EURSave up to €8,663 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.

A
5.18ct Round
€4,980 EUR