CaratHunter
Plans
Radiant|Lab Grown|IGI

4.28ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG739532862

Certificate IGI LG739532862

Diamond specifications and retailer prices

From $4,057 USD
Save $20,788 USD (84%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $24,845 USD at With Clarity
View at With Clarity

About this 4.28ct lab-grown radiant diamond

This 4.28ct 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 LG739532862 or 739532862. Listed at 25 retailers, with prices from $4,057 to $24,845 at With Clarity, a $20,788 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

4.28
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739532862
Dimensions11.84 × 8.02 × 5.30 mm
L/W Ratio1.48
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
11.84 mm8.02 mm4.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739532862
Side View
Table 64.0%Crown 41.2°Girdle: MediumPavilion 33.7°Culet: NoneDepth 66.1%

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: $15,280 USD|Low: $3,336 USD|High: $26,529 USD|Avg: $10,229 USD|+1.4%
Retailer 1
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
Retailer 18
Retailer 19
Retailer 20
With Clarity
October 1, 2026
Retailer 20$4,474 USD
Retailer 19$4,760 USD
Retailer 6$5,362 USD
Retailer 7$5,786 USD
Retailer 18$5,875 USD
Retailer 5$6,220 USD
Retailer 12$6,347 USD
Retailer 4$6,599 USD
Retailer 15$6,624 USD
Retailer 2$7,512 USD
Retailer 10$9,793 USD
Retailer 14$9,834 USD
Retailer 17$10,202 USD
Retailer 16$10,260 USD
Retailer 11$12,617 USD
Retailer 8$13,072 USD
Retailer 1$15,280 USD
Retailer 3$16,712 USD
Retailer 9$17,013 USD
Retailer 13$21,120 USD
With Clarity$24,348 USD

40 data points across 21 retailers

25 retailers$4,057 USD to $24,845 USD

A
Cheapest Retailer
-
$4,057 USD
A
Retailer 2
-
$4,252 USD
View
A
Retailer 3
-
$4,474 USD
View
A
Retailer 4
-
$4,641 USD
View
A
Retailer 5
-
$4,760 USD
View
A
Retailer 6
-
$5,362 USD
View
A
Retailer 7
-
$5,786 USD
View
A
Retailer 8
-
$5,875 USD
HK$45,900 HKD
View
A
Retailer 9
-
$5,881 USD
View
A
Retailer 10
-
$6,220 USD
View
A
Retailer 11
-
$6,361 USD
£5,009 GBP
View
A
Retailer 12
-
$6,599 USD
£5,196 GBP
View
A
Retailer 13
-
$6,624 USD
View
A
Retailer 14
-
$7,512 USD
€7,154 EUR
View
B+
Retailer 15
-
$9,793 USD
View
B+
Retailer 16
-
$9,834 USD
ZAR 158,867 ZAR
View
B+
Retailer 17
-
$10,202 USD
£8,033 GBP
View
B+
Retailer 18
-
$10,260 USD
A$15,784 AUD
View
B+
Retailer 19
-
$12,617 USD
View
B+
Retailer 20
-
$13,072 USD
View
B+
Retailer 21
-
$15,280 USD
A$23,507 AUD
View
B
Retailer 22
-
$16,712 USD
View
B
Retailer 23
-
$17,013 USD
SGD 22,990 SGD
View
B
Retailer 24
-
$21,120 USD
View
Most Expensive
B
With Clarity
739532862 · Sep 30
$24,845 USD
View
24 more retailers have this diamond
Prices start from $4,057 USDSave up to $20,788 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
4.28ct Radiant
$4,057 USD