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Radiant|Lab Grown|IGI

1.47ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG821695878

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

Certificate IGI LG821695878

Diamond specifications and retailer prices

From $460 AUD
As of November 4, 2026
Save $1,646 AUD (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,718 AUD at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 1.47ct lab-grown radiant diamond

This 1.47ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821695878 or 821695878. Listed at 20 retailers as of November 4, 2026, with a 358% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.47
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821695878
Dimensions8.77 × 5.54 × 3.53 mm
L/W Ratio1.58
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.77 mm5.54 mm1.47 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821695878
Side View
Table 64.0%Crown 38.5°Girdle: MediumPavilion 35.6°Culet: NoneDepth 63.7%

Caratlytics Score

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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 4
Current: $4,718 AUD|Low: $458 AUD|High: $4,918 AUD|Avg: $1,653 AUD|-4.1%
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
November 5, 2026
Retailer 3$460 AUD
Retailer 4$701 AUD
Retailer 10$734 AUD
Retailer 15$844 AUD
Retailer 13$882 AUD
Retailer 2$895 AUD
Retailer 11$1,254 AUD
Retailer 8$1,259 AUD
Retailer 14$1,568 AUD
Retailer 12$1,713 AUD
Retailer 5$2,036 AUD
Retailer 9$2,107 AUD
Retailer 7$2,130 AUD
Retailer 6$3,279 AUD
Brilliant Earth$4,718 AUD

31 data points across 15 retailers

20 retailers$460 AUD to $2,107 AUD

Retailer 1
-
$419 AUD
Price last confirmed 34 days ago
A
Retailer 2
-
$460 AUD
View
Final sale: no returns
Retailer 3
-
$485 AUD
View
Price last confirmed 39 days ago
Retailer 4
-
$510 AUD
View
Price last confirmed 41 days ago
Retailer 5
-
$542 AUD
View
Price last confirmed 33 days ago
A
Retailer 6
-
$701 AUD
View
A
Retailer 7
-
$734 AUD
View
A
Retailer 8
-
$844 AUD
View
A
Retailer 9
-
$882 AUD
View
A
Retailer 10
-
$895 AUD
View
A
Retailer 11
-
$1,254 AUD
View
B+
Retailer 12
-
$1,259 AUD
View
B+
Retailer 13
-
$1,568 AUD
View
B+
Retailer 14
-
$1,713 AUD
View
Retailer 15
-
$1,741 AUD
View
Price last confirmed 32 days ago
Retailer 16
-
$2,036 AUD
View
Price last confirmed 10 days ago
B+
Retailer 17
-
$2,107 AUD
View
Retailer 18
-
$2,130 AUD
View
Price last confirmed 28 days ago
Retailer 19
-
$3,279 AUD
View
Price last confirmed 15 days ago
Most Expensive
Brilliant Earth
21212801A · Oct 18
$4,718 AUD
$3,310 USD
View
Price last confirmed 17 days ago
19 more retailers have this diamond
Prices start from $460 AUDSave up to $1,646 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
1.47ct Radiant
$460 AUD