CaratHunter
Plans
Radiant|Lab Grown|IGI

3.28ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754508912

Certificate IGI LG754508912

Diamond specifications and retailer prices

From $1,404 USD
Save $7,126 USD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,530 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 LG754508912 or 754508912. Listed at 21 retailers, with prices from $1,404 to $8,530 at Brilliant Earth, a $7,126 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.5°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508912
Dimensions7.38 × 7.38 × 10.99 mm
L/W Ratio1.00
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
7.38 mm7.38 mm3.28 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508912
Side View
Table 65.0%Crown 46.5°Girdle: MED-STKPavilion 32.3°Culet: NoneDepth 62.9%

Caratlytics Score

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

Price History

Last verified: Sep 30
Current: $8,530 USD|Low: $1,606 USD|High: $12,930 USD|Avg: $4,558 USD|-34.0%
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 17$1,606 USD
Retailer 5$1,812 USD
Retailer 4$1,858 USD
Retailer 9$2,182 USD
Retailer 11$2,266 USD
Retailer 12$2,607 USD
Retailer 6$2,632 USD
Retailer 16$2,793 USD
Retailer 14$4,099 USD
Retailer 7$4,343 USD
Retailer 8$4,690 USD
Retailer 13$5,197 USD
Retailer 15$5,570 USD
Retailer 2$5,927 USD
Retailer 3$6,549 USD
Retailer 10$7,293 USD
Brilliant Earth$8,530 USD

38 data points across 17 retailers

21 retailers$1,404 USD to $8,530 USD

A
Cheapest Retailer
-
$1,404 USD
A
Retailer 2
-
$1,528 USD
View
A
Retailer 3
-
$1,606 USD
View
A
Retailer 4
-
$1,812 USD
View
A
Retailer 5
-
$1,858 USD
View
A
Retailer 6
-
$2,182 USD
View
A
Retailer 7
-
$2,266 USD
HK$17,700 HKD
View
A
Retailer 8
-
$2,553 USD
£2,010 GBP
View
Price last confirmed 21 days ago
A
Retailer 9
-
$2,613 USD
£2,058 GBP
View
A
Retailer 10
-
$2,632 USD
View
A
Retailer 11
-
$2,793 USD
€2,660 EUR
View
A
Retailer 12
-
$3,370 USD
View
A
Retailer 13
-
$4,099 USD
ZAR 66,224 ZAR
View
B+
Retailer 14
-
$4,343 USD
£3,420 GBP
View
B+
Retailer 15
-
$4,690 USD
View
B+
Retailer 16
-
$5,197 USD
£4,092 GBP
View
B+
Retailer 17
-
$5,570 USD
View
B+
Retailer 18
-
$5,927 USD
View
B+
Retailer 19
-
$6,549 USD
SGD 8,850 SGD
View
B
Retailer 20
-
$7,293 USD
A$11,220 AUD
View
Most Expensive
B
Brilliant Earth
18668546Y · Oct 1
$8,530 USD
View
20 more retailers have this diamond
Prices start from $1,404 USDSave up to $7,126 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
$1,404 USD