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 €5,054 EUR
£4,446 GBP
As of October 31, 2026
Save €8,653 EUR (63%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €13,707 EUR at Taylor and Hart · As of October 30, 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 October 30, 2026, with prices from €5,054 to €13,707, a €8,653 spread on the same certified stone. Taylor and Hart lists it at €13,707. 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
Color
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: Oct 31
Current: €5,054 EUR|Low: €4,743 EUR|High: €17,117 EUR|Avg: €7,594 EUR|-16.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Taylor and Hart
October 31, 2026
Retailer 7€4,743 EUR
Retailer 1€5,054 EUR
Retailer 5€5,608 EUR
Retailer 3€6,161 EUR
Retailer 4€6,834 EUR
Retailer 6€7,474 EUR
Retailer 2€8,354 EUR
Taylor and Hart€13,707 EUR

27 data points across 8 retailers

8 retailers€5,054 EUR to €13,707 EUR

Retailer 1
-
€4,743 EUR
HK$41,400 HKD
Price last confirmed 40 days ago
A
Retailer 2
-
€5,054 EUR
£4,446 GBP
View
A
Retailer 3
-
€5,608 EUR
$6,265 USD
View
A
Retailer 4
-
€6,161 EUR
View
A
Retailer 5
-
€6,834 EUR
$7,635 USD
View
A
Retailer 6
-
€7,474 EUR
$8,350 USD
View
A
Retailer 7
-
€8,354 EUR
£7,349 GBP
View
Most Expensive
B+
Taylor and Hart
RP0ADFW · Oct 30
€13,707 EUR
$15,313 USD
View
7 more retailers have this diamond
Prices start from €5,054 EURSave up to €8,653 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
€5,054 EUR