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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 $971 AUD
£537 GBP
As of October 26, 2026
Save $9,165 AUD (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,136 AUD 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 $971 to $10,136, a $9,165 spread on the same certified stone. Brilliant Earth lists it at $10,136. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $10,136 AUD|Low: $941 AUD|High: $10,136 AUD|Avg: $2,922 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 9$941 AUD
Retailer 5$971 AUD
Retailer 8$1,130 AUD
Retailer 7$1,231 AUD
Retailer 2$1,516 AUD
Retailer 6$1,612 AUD
Retailer 3$2,348 AUD
Retailer 10$3,295 AUD
Retailer 4$4,536 AUD
Brilliant Earth$10,136 AUD

4 data points across 10 retailers

9 retailers$971 AUD to $10,136 AUD

A
Cheapest Retailer
-
$971 AUD
£537 GBP
A
Retailer 2
-
$1,130 AUD
HK$6,200 HKD
View
Retailer 3
-
$1,231 AUD
$865 USD
View
Price last confirmed 5 days ago
A
Retailer 4
-
$1,516 AUD
€1,014 EUR
View
A
Retailer 5
-
$1,612 AUD
£891 GBP
View
B+
Retailer 6
-
$2,348 AUD
$1,649 USD
View
B
Retailer 7
-
$3,295 AUD
SGD 3,128 SGD
View
B
Retailer 8
-
$4,536 AUD
£2,509 GBP
View
Most Expensive
B
Brilliant Earth
22251606A · Oct 31
$10,136 AUD
$7,120 USD
View
8 more retailers have this diamond
Prices start from $971 AUDSave up to $9,165 AUD

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
$971 AUD