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Radiant|Lab Grown|IGI

3.28ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG744513727

Certificate IGI LG744513727

Diamond specifications and retailer prices

From $1,442 USD
Save $11,488 USD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,930 USD at Brilliant Earth
View at Brilliant Earth

About this 3.28ct lab-grown radiant diamond

This 3.28ct 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 LG744513727 or 744513727. Listed at 14 retailers, with prices from $1,442 to $12,930 at Brilliant Earth, a $11,488 spread on the same certified stone. 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

3.28
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744513727
Dimensions10.33 × 7.39 × 7.39 mm
L/W Ratio1.40
Culet sizePointed
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
10.33 mm7.39 mm3.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744513727
Side View
Table 60.0%Crown 40.4°Girdle: Slightly ThickPavilion 32.5°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $12,930 USD|Low: $1,030 USD|High: $12,930 USD|Avg: $4,799 USD
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
Retailer 17
October 1, 2026
Retailer 6$1,442 USD
Retailer 15$1,560 USD
Retailer 3$1,575 USD
Retailer 4$1,880 USD
Retailer 16$2,435 USD
Retailer 5$2,627 USD
Retailer 10$2,698 USD
Retailer 8$2,898 USD
Retailer 12$3,515 USD
Retailer 14$3,966 USD
Retailer 11$5,055 USD
Retailer 7$5,502 USD
Retailer 13$5,525 USD
Retailer 9$6,736 USD
Retailer 2$7,293 USD
Retailer 17$10,780 USD
Brilliant Earth$12,930 USD

18 data points across 17 retailers

14 retailers$1,442 USD to $12,930 USD

A
Cheapest Retailer
-
$1,442 USD
A
Retailer 2
-
$1,560 USD
View
A
Retailer 3
-
$1,575 USD
View
A
Retailer 4
-
$1,880 USD
View
A
Retailer 5
-
$2,435 USD
€2,319 EUR
View
A
Retailer 6
-
$2,627 USD
View
A
Retailer 7
-
$2,698 USD
View
A
Retailer 8
-
$3,515 USD
A$5,407 AUD
View
A
Retailer 9
-
$3,966 USD
View
B+
Retailer 10
-
$5,055 USD
£3,980 GBP
View
B+
Retailer 11
-
$5,525 USD
View
B+
Retailer 12
-
$7,293 USD
A$11,220 AUD
View
B
Retailer 13
-
$10,780 USD
View
Most Expensive
B
Brilliant Earth
17242367Y · Oct 1
$12,930 USD
View
13 more retailers have this diamond
Prices start from $1,442 USDSave up to $11,488 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.

A
3.28ct Radiant
$1,442 USD