Radiant|Lab Grown|IGI

1.55ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG614322823

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG614322823

Diamond specifications and retailer prices

From HK$5,928 HKD
£595 GBP
As of October 29, 2026
12 retailers carry this diamond
Most expensive: HK$9,730 HKD at Brilliant Earth · As of October 17, 2026
View at Brilliant Earth

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG614322823 or 614322823. Listed at 12 retailers as of October 29, 2026. 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

1.55
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614322823
Dimensions8.05 × 5.74 × 3.90 mm
L/W Ratio1.40
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.05 mm5.74 mm1.55 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614322823
Side View
Table 65.0%Crown 43.8°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 67.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: HK$9,730 HKD|Low: HK$1,357 HKD|High: HK$10,436 HKD|Avg: HK$4,147 HKD|-6.8%
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 17, 2026
Retailer 12HK$1,357 HKD
Retailer 4HK$1,577 HKD
Retailer 7HK$1,687 HKD
Retailer 10HK$1,687 HKD
Retailer 8HK$2,179 HKD
Retailer 9HK$2,940 HKD
Retailer 3HK$3,013 HKD
Retailer 2HK$3,197 HKD
Retailer 6HK$3,649 HKD
Retailer 5HK$4,331 HKD
Retailer 14HK$5,179 HKD
Retailer 13HK$5,422 HKD
Retailer 11HK$7,982 HKD
Brilliant EarthHK$9,730 HKD

26 data points across 14 retailers

12 retailers

Retailer 1
-
HK$1,357 HKD
$173 USD
Price last confirmed 22 days ago
Retailer 2
-
HK$1,577 HKD
$201 USD
View
Price last confirmed 32 days ago
Retailer 3
-
HK$1,687 HKD
$215 USD
View
Price last confirmed 14 days ago
Retailer 4
-
HK$1,687 HKD
$215 USD
View
Price last confirmed 15 days ago
Retailer 5
-
HK$2,179 HKD
£219 GBP
View
Price last confirmed 14 days ago
Retailer 6
-
HK$2,940 HKD
£295 GBP
View
Price last confirmed 14 days ago
Retailer 7
-
HK$3,013 HKD
$384 USD
View
Price last confirmed 14 days ago
Retailer 8
-
HK$5,179 HKD
$660 USD
View
Price last confirmed 17 days ago
Retailer 9
-
HK$5,422 HKD
$691 USD
View
Price last confirmed 22 days ago
B
Retailer 10
-
HK$5,928 HKD
£595 GBP
View
Retailer 11
-
HK$7,982 HKD
£801 GBP
View
Price last confirmed 19 days ago
Most Expensive
Brilliant Earth
8851381A · Oct 17
HK$9,730 HKD
$1,240 USD
View
Price last confirmed 13 days ago
11 more retailers have this diamond
Prices start from HK$5,928 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.

B
1.55ct Radiant
HK$5,928 HKD