Radiant|Lab Grown|IGI

4.56ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG625448882

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

Certificate IGI LG625448882

Diamond specifications and retailer prices

From $5,683 USD
HK$44,400 HKD
As of November 1, 2026
Save $5,167 USD (48%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $16,437 USD at Michael Trio · As of October 21, 2026
View at Michael Trio

About this 4.56ct lab-grown radiant diamond

This 4.56ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG625448882 or 625448882. Listed at 26 retailers as of October 31, 2026, with a 91% 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

4.56
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625448882
Dimensions11.89 × 8.28 × 5.42 mm
L/W Ratio1.44
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
11.89 mm8.28 mm4.56 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625448882
Side View
Table 63.0%Crown 32°Girdle: MediumPavilion 33.5°Culet: NoneDepth 65.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $16,437 USD|Low: $3,516 USD|High: $24,190 USD|Avg: $9,131 USD|-7.6%
Michael Trio
Retailer 2
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Retailer 21
October 30, 2026
Retailer 3$3,516 USD
Retailer 9$3,995 USD
Retailer 15$4,235 USD
Retailer 4$4,651 USD
Retailer 6$5,188 USD
Retailer 20$5,515 USD
Retailer 10$5,683 USD
Retailer 13$6,001 USD
Retailer 5$6,890 USD
Retailer 14$6,934 USD
Retailer 17$7,115 USD
Retailer 18$7,300 USD
Retailer 16$9,475 USD
Retailer 19$9,694 USD
Retailer 7$10,291 USD
Retailer 2$10,850 USD
Retailer 21$11,104 USD
Retailer 11$12,038 USD
Retailer 12$15,943 USD
Michael Trio$16,437 USD
Retailer 8$24,190 USD

34 data points across 21 retailers

26 retailers$5,683 USD to $10,850 USD

Retailer 1
-
$3,516 USD
Price last confirmed 11 days ago
Retailer 2
-
$3,516 USD
View
Price last confirmed 24 days ago
Retailer 3
-
$3,793 USD
View
Price last confirmed 33 days ago
Retailer 4
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$3,975 USD
View
Price last confirmed 35 days ago
Retailer 5
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$3,995 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$4,078 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$4,235 USD
View
Price last confirmed 9 days ago
Retailer 8
-
$4,339 USD
View
Price last confirmed 35 days ago
Retailer 9
-
$5,188 USD
View
Price last confirmed 9 days ago
Retailer 10
-
$5,515 USD
View
Price last confirmed 11 days ago
Retailer 11
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$5,625 USD
View
Price last confirmed 22 days ago
Retailer 12
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$5,625 USD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
$5,683 USD
HK$44,400 HKD
View
Retailer 14
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$6,001 USD
£4,725 GBP
View
Price last confirmed 10 days ago
Retailer 15
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$6,068 USD
View
Price last confirmed 32 days ago
Retailer 16
-
$6,890 USD
View
Price last confirmed 11 days ago
Retailer 17
-
$6,934 USD
£5,460 GBP
View
Price last confirmed 11 days ago
Retailer 18
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$7,115 USD
View
Price last confirmed 14 days ago
Retailer 19
-
$9,475 USD
ZAR 153,068 ZAR
View
Price last confirmed 13 days ago
Retailer 20
-
$9,694 USD
£7,633 GBP
View
Price last confirmed 11 days ago
Retailer 21
-
$10,291 USD
View
Price last confirmed 10 days ago
B
Retailer 22
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$10,850 USD
View
Retailer 23
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$11,104 USD
A$17,083 AUD
View
Price last confirmed 24 days ago
Retailer 24
-
$12,038 USD
View
Price last confirmed 11 days ago
Retailer 25
-
$15,943 USD
View
Price last confirmed 10 days ago
Most Expensive
Michael Trio
1921736221 · Oct 21
$16,437 USD
SGD 22,212 SGD
View
Price last confirmed 12 days ago
25 more retailers have this diamond
Prices start from $5,683 USDSave up to $5,167 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
4.56ct Radiant
$5,683 USD