CaratHunter
Plans
Radiant|Lab Grown|IGI

1.55ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG600355829

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

Certificate IGI LG600355829

Diamond specifications and retailer prices

From HK$3,013 HKD
$384 USD
As of October 30, 2026
Save HK$5,696 HKD (65%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$8,710 HKD at Brilliant Earth · As of October 30, 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 LG600355829 or 600355829. Listed at 11 retailers as of October 30, 2026, with prices from HK$3,013 to HK$8,710, a HK$5,696 spread on the same certified stone. Brilliant Earth lists it at HK$8,710. 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 angle43.6°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600355829
Dimensions8.31 × 5.68 × 3.86 mm
L/W Ratio1.46
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
8.31 mm5.68 mm1.55 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600355829
Side View
Table 65.0%Crown 43.6°Girdle: MediumPavilion 35.4°Culet: NoneDepth 68.0%

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$8,710 HKD|Low: HK$1,098 HKD|High: HK$10,436 HKD|Avg: HK$4,575 HKD|-16.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 7HK$1,522 HKD
Retailer 6HK$3,013 HKD
Retailer 2HK$3,016 HKD
Retailer 4HK$3,188 HKD
Retailer 9HK$3,649 HKD
Retailer 8HK$4,331 HKD
Retailer 3HK$5,728 HKD
Retailer 5HK$7,922 HKD
Brilliant EarthHK$8,710 HKD

38 data points across 9 retailers

11 retailersHK$3,013 HKD to HK$8,710 HKD

Retailer 1
-
HK$1,577 HKD
$201 USD
Price last confirmed 32 days ago
Retailer 2
-
HK$1,663 HKD
$212 USD
View
Price last confirmed 33 days ago
B+
Retailer 3
-
HK$3,013 HKD
$384 USD
View
A
Retailer 4
-
HK$3,016 HKD
£303 GBP
View
A
Retailer 5
-
HK$3,188 HKD
€387 EUR
View
A
Retailer 6
-
HK$3,649 HKD
$465 USD
View
B+
Retailer 7
-
HK$4,331 HKD
$552 USD
View
B
Retailer 8
-
HK$5,728 HKD
$730 USD
View
B+
Retailer 9
-
HK$5,928 HKD
£595 GBP
View
Retailer 10
-
HK$7,922 HKD
£795 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
8177429A · Oct 30
HK$8,710 HKD
$1,110 USD
View
10 more retailers have this diamond
Prices start from HK$3,013 HKDSave up to HK$5,696 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
1.55ct Radiant
HK$3,013 HKD