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Round|Lab Grown|IGI

4.00ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG673407355

Shape and cutting style on the report: Round brilliant

Certificate IGI LG673407355

Diamond specifications and retailer prices

From HK$4,378 HKD
$558 USD
As of October 31, 2026
Save HK$25,671 HKD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$30,049 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4ct lab-grown round diamond

This 4ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG673407355 or 673407355. Listed at 14 retailers as of October 29, 2026, with prices from HK$4,378 to HK$30,049, a HK$25,671 spread on the same certified stone. Brilliant Earth lists it at HK$30,049. 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

4.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG673407355
Dimensions10.18 × 10.11 × 6.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.18 mm10.11 mm4.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG673407355
Side View
Table 57.0%Crown 35.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.3%

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$30,049 HKD|Low: HK$4,378 HKD|High: HK$33,815 HKD|Avg: HK$11,377 HKD|-11.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 2HK$4,378 HKD
Retailer 3HK$4,378 HKD
Retailer 8HK$5,492 HKD
Retailer 14HK$5,629 HKD
Retailer 4HK$6,865 HKD
Retailer 7HK$7,076 HKD
Retailer 10HK$7,216 HKD
Retailer 5HK$7,610 HKD
Retailer 6HK$9,517 HKD
Retailer 12HK$11,761 HKD
Retailer 9HK$14,067 HKD
Retailer 11HK$16,162 HKD
Retailer 13HK$17,810 HKD
Brilliant EarthHK$30,049 HKD

35 data points across 14 retailers

14 retailersHK$4,378 HKD to HK$30,049 HKD

Retailer 1
-
HK$4,378 HKD
$558 USD
Price last confirmed 19 days ago
A
Retailer 2
-
HK$4,378 HKD
$558 USD
View
A
Retailer 3
-
HK$5,492 HKD
$700 USD
View
Retailer 4
-
HK$5,629 HKD
£565 GBP
View
Price last confirmed 15 days ago
B+
Retailer 5
-
HK$6,865 HKD
$875 USD
View
A
Retailer 6
-
HK$7,076 HKD
€859 EUR
View
A
Retailer 7
-
HK$7,216 HKD
£724 GBP
View
A
Retailer 8
-
HK$7,610 HKD
$970 USD
View
B+
Retailer 9
-
HK$9,517 HKD
$1,213 USD
View
B
Retailer 10
-
HK$11,761 HKD
$1,499 USD
View
B+
Retailer 11
-
HK$14,067 HKD
$1,793 USD
View
B
Retailer 12
-
HK$16,162 HKD
£1,622 GBP
View
Retailer 13
-
HK$17,810 HKD
$2,270 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
12844998A · Oct 29
HK$30,049 HKD
$3,830 USD
View
13 more retailers have this diamond
Prices start from HK$4,378 HKDSave up to HK$25,671 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
4.00ct Round
HK$4,378 HKD