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Radiant|Lab Grown|IGI

4.26ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG681578315

Certificate IGI LG681578315

Diamond specifications and retailer prices

From $3,452 USD
Save $20,298 USD (85%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $23,750 USD at Do Amore Diamonds
View at Do Amore Diamonds

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 LG681578315 or 681578315. Listed at 25 retailers, with prices from $3,452 to $23,750 at Do Amore Diamonds, a $20,298 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681578315
Dimensions11.24 × 8.14 × 5.52 mm
L/W Ratio1.38
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
11.24 mm8.14 mm4.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681578315
Side View
Table 63.0%Crown 41.7°Girdle: MediumPavilion 35.1°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
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: $23,750 USD|Low: $2,869 USD|High: $24,680 USD|Avg: $9,272 USD|-3.8%
Do Amore Diamonds
Retailer 2
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Retailer 21
October 1, 2026
Retailer 3$3,918 USD
Retailer 21$4,160 USD
Retailer 7$4,549 USD
Retailer 19$4,562 USD
Retailer 8$5,418 USD
Retailer 20$5,568 USD
Retailer 16$5,754 USD
Retailer 13$5,942 USD
Retailer 6$6,797 USD
Retailer 4$7,030 USD
Retailer 15$9,236 USD
Retailer 18$9,582 USD
Retailer 17$9,606 USD
Retailer 11$10,962 USD
Retailer 9$11,024 USD
Retailer 12$11,809 USD
Retailer 2$15,015 USD
Retailer 5$15,638 USD
Retailer 10$16,122 USD
Retailer 14$21,020 USD
Do Amore Diamonds$23,750 USD

37 data points across 21 retailers

25 retailers$3,452 USD to $23,750 USD

A
Cheapest Retailer
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$3,452 USD
A
Retailer 2
-
$3,756 USD
View
A
Retailer 3
-
$3,918 USD
View
A
Retailer 4
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$3,949 USD
View
A
Retailer 5
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$4,160 USD
View
A
Retailer 6
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$4,549 USD
View
A
Retailer 7
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$4,562 USD
View
A
Retailer 8
-
$5,418 USD
View
A
Retailer 9
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$5,524 USD
View
A
Retailer 10
-
$5,568 USD
HK$43,500 HKD
View
A
Retailer 11
-
$5,754 USD
View
A
Retailer 12
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$5,955 USD
£4,689 GBP
View
A
Retailer 13
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$6,797 USD
£5,352 GBP
View
A
Retailer 14
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$7,030 USD
€6,695 EUR
View
B+
Retailer 15
-
$9,236 USD
ZAR 149,211 ZAR
View
B+
Retailer 16
-
$9,582 USD
£7,545 GBP
View
B+
Retailer 17
-
$9,606 USD
A$14,779 AUD
View
B+
Retailer 18
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$10,962 USD
View
B+
Retailer 19
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$11,024 USD
View
B+
Retailer 20
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$11,809 USD
View
B+
Retailer 21
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$15,015 USD
A$23,100 AUD
View
B+
Retailer 22
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$15,638 USD
View
B+
Retailer 23
-
$16,122 USD
SGD 21,787 SGD
View
B
Retailer 24
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$21,020 USD
View
Most Expensive
B
Do Amore Diamonds
27-09E10CB0F · Sep 30
$23,750 USD
View
24 more retailers have this diamond
Prices start from $3,452 USDSave up to $20,298 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
$3,452 USD