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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 $7,878 CAD
£4,432 GBP
As of October 29, 2026
Save $13,555 CAD (63%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $21,433 CAD at Taylor and Hart · As of October 27, 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 27, 2026, with prices from $7,878 to $21,433, a $13,555 spread on the same certified stone. Taylor and Hart lists it at $21,433. 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 29
Current: $7,878 CAD|Low: $7,417 CAD|High: $26,765 CAD|Avg: $11,942 CAD|-15.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Taylor and Hart
October 29, 2026
Retailer 7$7,417 CAD
Retailer 1$7,878 CAD
Retailer 5$8,768 CAD
Retailer 3$9,633 CAD
Retailer 4$10,686 CAD
Retailer 6$11,687 CAD
Retailer 2$13,063 CAD
Taylor and Hart$21,433 CAD

26 data points across 8 retailers

8 retailers$7,878 CAD to $21,433 CAD

Retailer 1
-
$7,417 CAD
HK$41,400 HKD
Price last confirmed 38 days ago
A
Retailer 2
-
$7,878 CAD
£4,432 GBP
View
A
Retailer 3
-
$8,768 CAD
$6,265 USD
View
A
Retailer 4
-
$9,633 CAD
€6,555 EUR
View
A
Retailer 5
-
$10,686 CAD
$7,635 USD
View
A
Retailer 6
-
$11,687 CAD
$8,350 USD
View
A
Retailer 7
-
$13,063 CAD
£7,349 GBP
View
Most Expensive
B+
Taylor and Hart
RP0ADFW · Oct 27
$21,433 CAD
$15,313 USD
View
7 more retailers have this diamond
Prices start from $7,878 CADSave up to $13,555 CAD

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
$7,878 CAD