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 $323 USD
As of October 31, 2026
Save $1,149 USD (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,310 USD 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 October 30, 2026, with a 356% 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
Color
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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Price History

Last verified: Oct 31
Current: $3,310 USD|Low: $321 USD|High: $3,450 USD|Avg: $1,091 USD|-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
Retailer 16
November 1, 2026
Retailer 12$323 USD
Retailer 8$380 USD
Retailer 3$490 USD
Retailer 14$492 USD
Retailer 10$592 USD
Retailer 16$612 USD
Retailer 2$636 USD
Retailer 15$868 USD
Retailer 13$876 USD
Retailer 9$1,100 USD
Retailer 11$1,204 USD
Retailer 4$1,429 USD
Retailer 5$1,472 USD
Retailer 7$1,494 USD
Retailer 6$2,300 USD
Brilliant Earth$3,310 USD

30 data points across 16 retailers

20 retailers$323 USD to $1,472 USD

Retailer 1
-
$294 USD
Price last confirmed 29 days ago
A
Retailer 2
-
$323 USD
View
Final sale: no returns
Retailer 3
-
$340 USD
View
Price last confirmed 34 days ago
Retailer 4
-
$358 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$380 USD
View
Price last confirmed 28 days ago
A
Retailer 6
-
$490 USD
View
A
Retailer 7
-
$492 USD
View
A
Retailer 8
-
$592 USD
€564 EUR
View
A
Retailer 9
-
$612 USD
ZAR 9,884 ZAR
View
A
Retailer 10
-
$636 USD
£500 GBP
View
A
Retailer 11
-
$868 USD
A$1,336 AUD
View
B+
Retailer 12
-
$876 USD
View
B+
Retailer 13
-
$1,100 USD
View
B+
Retailer 14
-
$1,204 USD
View
Retailer 15
-
$1,221 USD
View
Price last confirmed 27 days ago
B+
Retailer 16
-
$1,429 USD
£1,125 GBP
View
B+
Retailer 17
-
$1,472 USD
View
Retailer 18
-
$1,494 USD
A$2,299 AUD
View
Price last confirmed 23 days ago
Retailer 19
-
$2,300 USD
View
Price last confirmed 10 days ago
Most Expensive
Brilliant Earth
21212801A · Oct 18
$3,310 USD
View
Price last confirmed 13 days ago
19 more retailers have this diamond
Prices start from $323 USDSave up to $1,149 USD

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
$323 USD