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Radiant|Lab Grown|IGI

4.26ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754508431

Certificate IGI LG754508431

Diamond specifications and retailer prices

From $3,659 USD
Save $36,618 USD (91%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $40,277 USD at Diamond Quarter
View at Diamond Quarter

About this 4.26ct lab-grown radiant diamond

This 4.26ct 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 LG754508431 or 754508431. Listed at 26 retailers, with prices from $3,659 to $40,277 at Diamond Quarter, a $36,618 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

4.26
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508431
Dimensions11.84 × 8.02 × 11.84 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 mm4.26 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508431
Side View
Table 64.0%Crown 43.8°Girdle: MediumPavilion 33.1°Culet: NoneDepth 65.3%

Caratlytics Score

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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: Sep 30
Current: $15,208 USD|Low: $3,271 USD|High: $25,890 USD|Avg: $9,529 USD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 11
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Retailer 21
Retailer 22
October 1, 2026
Retailer 3$4,129 USD
Retailer 2$4,400 USD
Retailer 7$4,594 USD
Retailer 20$4,852 USD
Retailer 8$5,758 USD
Retailer 21$5,926 USD
Retailer 17$5,974 USD
Retailer 12$6,318 USD
Retailer 6$6,568 USD
Retailer 15$6,958 USD
Retailer 4$7,477 USD
Retailer 16$9,790 USD
Retailer 19$10,157 USD
Retailer 18$10,212 USD
Retailer 11$11,652 USD
Retailer 9$11,685 USD
Retailer 13$12,558 USD
Retailer 1$15,208 USD
Retailer 5$16,634 USD
Retailer 10$17,135 USD
Retailer 14$21,020 USD
Retailer 22$25,180 USD

38 data points across 22 retailers

26 retailers$3,659 USD to $40,277 USD

A
Cheapest Retailer
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$3,659 USD
A
Retailer 2
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$3,981 USD
View
A
Retailer 3
-
$4,129 USD
View
A
Retailer 4
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$4,186 USD
View
A
Retailer 5
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$4,400 USD
View
A
Retailer 6
-
$4,594 USD
View
A
Retailer 7
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$4,852 USD
View
A
Retailer 8
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$5,758 USD
View
A
Retailer 9
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$5,855 USD
View
A
Retailer 10
-
$5,926 USD
HK$46,300 HKD
View
A
Retailer 11
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$5,974 USD
View
A
Retailer 12
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$6,332 USD
£4,986 GBP
View
A
Retailer 13
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$6,568 USD
£5,172 GBP
View
A
Retailer 14
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$7,477 USD
€7,121 EUR
View
B+
Retailer 15
-
$9,790 USD
ZAR 158,164 ZAR
View
B+
Retailer 16
-
$10,157 USD
£7,998 GBP
View
B+
Retailer 17
-
$10,212 USD
A$15,711 AUD
View
B+
Retailer 18
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$11,652 USD
View
B+
Retailer 19
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$11,685 USD
View
B+
Retailer 20
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$12,558 USD
View
B+
Retailer 21
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$15,208 USD
A$23,397 AUD
View
B+
Retailer 22
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$16,634 USD
View
B
Retailer 23
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$17,135 USD
SGD 23,155 SGD
View
B
Retailer 24
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$21,020 USD
View
B
Retailer 25
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$25,180 USD
View
Most Expensive
B
Diamond Quarter
4.26IFDLG694BDFN · Oct 1
$40,277 USD
View
25 more retailers have this diamond
Prices start from $3,659 USDSave up to $36,618 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
4.26ct Radiant
$3,659 USD