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Radiant|Lab Grown|IGI

3.26ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG821641215

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

Certificate IGI LG821641215

Diamond specifications and retailer prices

From $2,500 AUD
$1,756 USD
As of October 30, 2026
Save $9,288 AUD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,787 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.26ct lab-grown radiant diamond

This 3.26ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821641215 or 821641215. Listed at 15 retailers as of October 30, 2026, with prices from $2,500 to $11,787, a $9,288 spread on the same certified stone. Brilliant Earth lists it at $11,787. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.26
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821641215
Dimensions10.37 × 7.49 × 4.92 mm
L/W Ratio1.38
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
10.37 mm7.49 mm3.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821641215
Side View
Table 64.0%Crown 41.7°Girdle: Slightly ThickPavilion 33.4°Culet: NoneDepth 65.7%

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 30
Current: $11,787 AUD|Low: $2,500 AUD|High: $14,136 AUD|Avg: $6,198 AUD|-16.6%
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
October 31, 2026
Retailer 8$2,500 AUD
Retailer 10$2,624 AUD
Retailer 12$3,048 AUD
Retailer 6$3,552 AUD
Retailer 3$3,771 AUD
Retailer 2$4,751 AUD
Retailer 14$5,020 AUD
Retailer 7$6,126 AUD
Retailer 9$6,204 AUD
Retailer 15$6,796 AUD
Retailer 13$7,593 AUD
Retailer 4$8,236 AUD
Retailer 11$8,263 AUD
Retailer 5$10,342 AUD
Brilliant Earth$11,787 AUD

40 data points across 15 retailers

15 retailers$2,500 AUD to $11,787 AUD

A
Cheapest Retailer
-
$2,500 AUD
$1,756 USD
A
Retailer 2
-
$2,624 AUD
HK$14,400 HKD
View
A
Retailer 3
-
$3,048 AUD
£1,686 GBP
View
A
Retailer 4
-
$3,552 AUD
$2,495 USD
View
Retailer 5
-
$3,771 AUD
€2,523 EUR
View
Price last confirmed 7 days ago
A
Retailer 6
-
$4,751 AUD
$3,337 USD
View
A
Retailer 7
-
$5,020 AUD
ZAR 56,971 ZAR
View
B+
Retailer 8
-
$6,126 AUD
$4,303 USD
View
B+
Retailer 9
-
$6,204 AUD
$4,358 USD
View
B+
Retailer 10
-
$6,796 AUD
£3,759 GBP
View
B+
Retailer 11
-
$7,593 AUD
$5,333 USD
View
Retailer 12
-
$8,236 AUD
$5,785 USD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
$8,263 AUD
$5,804 USD
View
Retailer 14
-
$10,342 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
21144056A · Oct 30
$11,787 AUD
$8,280 USD
View
14 more retailers have this diamond
Prices start from $2,500 AUDSave up to $9,288 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
3.26ct Radiant
$2,500 AUD