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Radiant|Lab Grown|IGI

4.55ct D SI1 Radiant Lab Grown Diamond

VG • D/SI1 • IGI LG846656934

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

Certificate IGI LG846656934

Diamond specifications and retailer prices

From HK$5,352 HKD
£537 GBP
As of October 26, 2026
Save HK$50,510 HKD (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$55,861 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.55ct lab-grown radiant diamond

This 4.55ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG846656934 or 846656934. Listed at 9 retailers as of October 26, 2026, with prices from HK$5,352 to HK$55,861, a HK$50,510 spread on the same certified stone. Brilliant Earth lists it at HK$55,861. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.55
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846656934
Dimensions11.37 × 8.38 × 5.42 mm
L/W Ratio1.36
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.37 mm8.38 mm4.55 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846656934
Side View
Table 64.0%Crown 43.6°Girdle: MED-STKPavilion 32.9°Culet: NoneDepth 64.7%

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 26
Current: HK$55,861 HKD|Low: HK$5,186 HKD|High: HK$55,861 HKD|Avg: HK$16,103 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 9HK$5,186 HKD
Retailer 5HK$5,352 HKD
Retailer 8HK$6,226 HKD
Retailer 7HK$6,787 HKD
Retailer 2HK$8,353 HKD
Retailer 6HK$8,882 HKD
Retailer 3HK$12,938 HKD
Retailer 10HK$18,161 HKD
Retailer 4HK$25,000 HKD
Brilliant EarthHK$55,861 HKD

4 data points across 10 retailers

9 retailersHK$5,352 HKD to HK$55,861 HKD

A
Cheapest Retailer
-
HK$5,352 HKD
£537 GBP
A
Retailer 2
-
HK$6,226 HKD
View
Retailer 3
-
HK$6,787 HKD
$865 USD
View
Price last confirmed 5 days ago
A
Retailer 4
-
HK$8,353 HKD
€1,014 EUR
View
A
Retailer 5
-
HK$8,882 HKD
£891 GBP
View
B+
Retailer 6
-
HK$12,938 HKD
$1,649 USD
View
B
Retailer 7
-
HK$18,161 HKD
SGD 3,128 SGD
View
B
Retailer 8
-
HK$25,000 HKD
£2,509 GBP
View
Most Expensive
B
Brilliant Earth
22251606A · Oct 31
HK$55,861 HKD
$7,120 USD
View
8 more retailers have this diamond
Prices start from HK$5,352 HKDSave up to HK$50,510 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
4.55ct Radiant
HK$5,352 HKD