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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 HK$44,297 HKD
£4,446 GBP
As of October 30, 2026
Save HK$75,848 HKD (63%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$120,144 HKD 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 HK$44,297 to HK$120,144, a HK$75,848 spread on the same certified stone. Taylor and Hart lists it at HK$120,144. 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: Oct 30
Current: HK$44,297 HKD|Low: HK$41,576 HKD|High: HK$150,036 HKD|Avg: HK$66,808 HKD|-15.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Taylor and Hart
October 30, 2026
Retailer 7HK$41,576 HKD
Retailer 1HK$44,297 HKD
Retailer 5HK$49,153 HKD
Retailer 3HK$54,000 HKD
Retailer 4HK$59,902 HKD
Retailer 6HK$65,512 HKD
Retailer 2HK$73,226 HKD
Taylor and HartHK$120,144 HKD

27 data points across 8 retailers

8 retailersHK$44,297 HKD to HK$120,144 HKD

Retailer 1
-
HK$41,576 HKD
Price last confirmed 39 days ago
A
Retailer 2
-
HK$44,297 HKD
£4,446 GBP
View
A
Retailer 3
-
HK$49,153 HKD
$6,265 USD
View
A
Retailer 4
-
HK$54,000 HKD
€6,555 EUR
View
A
Retailer 5
-
HK$59,902 HKD
$7,635 USD
View
A
Retailer 6
-
HK$65,512 HKD
$8,350 USD
View
A
Retailer 7
-
HK$73,226 HKD
£7,349 GBP
View
Most Expensive
B+
Taylor and Hart
RP0ADFW · Oct 30
HK$120,144 HKD
$15,313 USD
View
7 more retailers have this diamond
Prices start from HK$44,297 HKDSave up to HK$75,848 HKD

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
HK$44,297 HKD