Radiant|Lab Grown|IGI

3.28ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG720521089

Certificate IGI LG720521089

Diamond specifications and retailer prices

From $3,329 USD
Save $13,349 USD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $32,040 USD at Do Amore Diamonds
View at Do Amore Diamonds

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 LG720521089 or 720521089. Listed at 17 retailers, with a 401% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle48°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720521089
Dimensions10.41 × 7.34 × 4.95 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.41 mm7.34 mm3.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720521089
Side View
Table 65.0%Crown 48°Girdle: MediumPavilion 34.8°Culet: NoneDepth 67.4%

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 29
Current: $25,240 USD|Low: $2,083 USD|High: $32,040 USD|Avg: $9,153 USD|+23.1%
Do Amore Diamonds
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
September 29, 2026
Retailer 11$3,329 USD
Retailer 14$4,108 USD
Retailer 13$4,410 USD
Retailer 8$5,877 USD
Retailer 12$6,066 USD
Retailer 2$6,334 USD
Retailer 3$6,584 USD
Retailer 10$10,183 USD
Retailer 7$10,707 USD
Retailer 9$10,792 USD
Retailer 5$11,748 USD
Retailer 6$12,930 USD
Retailer 4$16,678 USD
Do Amore Diamonds$25,240 USD

37 data points across 14 retailers

17 retailers$3,329 USD to $16,678 USD

A
Cheapest Retailer
-
$3,329 USD
A
Retailer 2
-
$4,108 USD
View
A
Retailer 3
-
$4,410 USD
View
B+
Retailer 4
-
$4,632 USD
View
Price last confirmed 45 days ago
B+
Retailer 5
-
$5,877 USD
View
B+
Retailer 6
-
$6,066 USD
View
B+
Retailer 7
-
$6,348 USD
£4,999 GBP
View
B+
Retailer 8
-
$6,584 USD
£5,184 GBP
View
B+
Retailer 9
-
$10,183 USD
£8,018 GBP
View
B
Retailer 10
-
$10,707 USD
ZAR 172,975 ZAR
View
B
Retailer 11
-
$10,792 USD
A$16,603 AUD
View
B
Retailer 12
-
$11,748 USD
View
B
Retailer 13
-
$12,930 USD
View
B
Retailer 14
-
$15,718 USD
View
B
Retailer 15
-
$16,678 USD
View
B
Retailer 16
-
$25,240 USD
View
Price under review
Most Expensive
B
Do Amore Diamonds
23-720521089 · Sep 30
$32,040 USD
View
Price under review
16 more retailers have this diamond
Prices start from $3,329 USDSave up to $13,349 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
$3,329 USD