Round|Lab Grown|IGI

4.26ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG811634678

Certificate IGI LG811634678

Diamond specifications and retailer prices

From $2,296 USD
Save $22,354 USD (91%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $24,650 USD at Brilliant Earth
View at Brilliant Earth

About this 4.26ct lab-grown round diamond

This 4.26ct lab-grown round 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 LG811634678 or 811634678. Listed at 13 retailers, with prices from $2,296 to $24,650 at Brilliant Earth, a $22,354 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 angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811634678
Dimensions10.39 × 10.44 × 6.40 mm
L/W Ratio1.00
Girdle conditionFaceted
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
10.39 mm10.44 mm4.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811634678
Side View
Table 57.0%Crown 34.3°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.4%

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: $24,650 USD|Low: $2,240 USD|High: $24,650 USD|Avg: $7,391 USD
Brilliant Earth
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
October 1, 2026
Retailer 12$2,296 USD
Retailer 7$2,360 USD
Retailer 13$2,912 USD
Retailer 3$3,690 USD
Retailer 14$3,751 USD
Retailer 10$3,767 USD
Retailer 9$5,194 USD
Retailer 4$6,210 USD
Retailer 8$6,650 USD
Retailer 6$6,680 USD
Retailer 2$10,875 USD
Retailer 5$11,321 USD
Retailer 11$13,010 USD
Brilliant Earth$24,650 USD

16 data points across 14 retailers

13 retailers$2,296 USD to $24,650 USD

A
Cheapest Retailer
-
$2,296 USD
A
Retailer 2
-
$2,360 USD
View
A
Retailer 3
-
$2,912 USD
View
A
Retailer 4
-
$3,690 USD
View
A
Retailer 5
-
$3,751 USD
View
A
Retailer 6
-
$3,767 USD
€3,588 EUR
View
A
Retailer 7
-
$5,194 USD
A$7,991 AUD
View
A
Retailer 8
-
$6,210 USD
View
A
Retailer 9
-
$6,650 USD
£5,236 GBP
View
B+
Retailer 10
-
$10,875 USD
A$16,731 AUD
View
B+
Retailer 11
-
$11,321 USD
View
Price last confirmed 55 days ago
B
Retailer 12
-
$13,010 USD
View
Most Expensive
B
Brilliant Earth
21014366Y · Sep 29
$24,650 USD
View
12 more retailers have this diamond
Prices start from $2,296 USDSave up to $22,354 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 Round
$2,296 USD