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5.09ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG826629579

Shape and cutting style on the report: Round brilliant

Certificate IGI LG826629579

Diamond specifications and retailer prices

From HK$5,233 HKD
$667 USD
As of October 31, 2026
Save HK$25,208 HKD (83%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$30,441 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.09ct lab-grown round diamond

This 5.09ct lab-grown round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG826629579 or 826629579. Listed at 4 retailers as of October 31, 2026, with prices from HK$5,233 to HK$30,441, a HK$25,208 spread on the same certified stone. Brilliant Earth lists it at HK$30,441. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.09
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826629579
Dimensions10.94 × 10.99 × 6.87 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.94 mm10.99 mm5.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826629579
Side View
Table 56.0%Crown 36°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.7%

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: HK$30,441 HKD|Low: HK$5,233 HKD|High: HK$30,441 HKD|Avg: HK$12,437 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 3HK$5,233 HKD
Retailer 4HK$7,257 HKD
Retailer 7HK$9,407 HKD
Retailer 2HK$9,419 HKD
Retailer 6HK$13,000 HKD
Retailer 5HK$14,475 HKD
Brilliant EarthHK$30,441 HKD

34 data points across 7 retailers

4 retailersHK$5,233 HKD to HK$30,441 HKD

A
Cheapest Retailer
-
HK$5,233 HKD
$667 USD
Final sale: no returns
B+
Retailer 2
-
HK$9,419 HKD
£945 GBP
View
Retailer 3
-
HK$14,475 HKD
$1,845 USD
View
Price last confirmed 45 days ago
Most Expensive
B
Brilliant Earth
21229585A · Oct 31
HK$30,441 HKD
$3,880 USD
View
3 more retailers have this diamond
Prices start from HK$5,233 HKDSave up to HK$25,208 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
5.09ct Round
HK$5,233 HKD