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Radiant|Lab Grown|IGI

5.05ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG618466739

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

Certificate IGI LG618466739

Diamond specifications and retailer prices

From $683 AUD
$479 USD
As of November 2, 2026
Save $4,996 AUD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,679 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 5.05ct lab-grown radiant diamond

This 5.05ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG618466739 or 618466739. Listed at 15 retailers as of November 2, 2026, with prices from $683 to $5,679, a $4,996 spread on the same certified stone. Brilliant Earth lists it at $5,679. 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

5.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618466739
Dimensions11.94 × 8.44 × 5.75 mm
L/W Ratio1.41
Culet sizePointed
Top View
11.94 mm8.44 mm5.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618466739
Side View
Table 65.0%Crown 42.8°Girdle: MediumPavilion 35°Culet: NoneDepth 68.1%

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: Nov 2
Current: $5,679 AUD|Low: $683 AUD|High: $5,679 AUD|Avg: $1,975 AUD
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 3$683 AUD
Retailer 12$766 AUD
Retailer 6$848 AUD
Retailer 8$848 AUD
Retailer 16$891 AUD
Retailer 11$1,049 AUD
Retailer 7$1,321 AUD
Retailer 10$1,368 AUD
Retailer 2$1,407 AUD
Retailer 5$1,491 AUD
Retailer 15$1,822 AUD
Retailer 13$2,279 AUD
Retailer 4$2,725 AUD
Retailer 9$3,113 AUD
Retailer 14$4,409 AUD
Brilliant Earth$5,679 AUD

37 data points across 16 retailers

15 retailers$683 AUD to $5,679 AUD

A
Cheapest Retailer
-
$683 AUD
$479 USD
A
Retailer 2
-
$766 AUD
$537 USD
View
A
Retailer 3
-
$848 AUD
$594 USD
View
Retailer 4
-
$848 AUD
$594 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$1,049 AUD
$735 USD
View
B+
Retailer 6
-
$1,321 AUD
$926 USD
View
A
Retailer 7
-
$1,368 AUD
€913 EUR
View
A
Retailer 8
-
$1,407 AUD
£777 GBP
View
A
Retailer 9
-
$1,491 AUD
$1,045 USD
View
B+
Retailer 10
-
$1,822 AUD
$1,277 USD
View
B+
Retailer 11
-
$2,279 AUD
$1,597 USD
View
B+
Retailer 12
-
$2,725 AUD
$1,910 USD
View
B
Retailer 13
-
$3,113 AUD
£1,718 GBP
View
B
Retailer 14
-
$4,409 AUD
$3,090 USD
View
Most Expensive
B
Brilliant Earth
9039898A · Nov 2
$5,679 AUD
$3,980 USD
View
14 more retailers have this diamond
Prices start from $683 AUDSave up to $4,996 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
5.05ct Radiant
$683 AUD