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Round|Lab Grown|IGI

4.26ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG754507816

Certificate IGI LG754507816

Diamond specifications and retailer prices

From $2,505 USD
Save $22,145 USD (90%) vs most expensive(unlock to see where)
19 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 LG754507816 or 754507816. Listed at 19 retailers, with prices from $2,505 to $24,650 at Brilliant Earth, a $22,145 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 angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754507816
Dimensions10.42 × 10.48 × 6.36 mm
L/W Ratio1.01
Girdle conditionFaceted
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
10.42 mm10.48 mm4.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754507816
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.8%

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 28
Current: $24,650 USD|Low: $2,505 USD|High: $24,650 USD|Avg: $8,135 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 1, 2026
Retailer 5$2,505 USD
Retailer 8$2,866 USD
Retailer 19$2,991 USD
Retailer 9$3,024 USD
Retailer 10$3,621 USD
Retailer 4$3,832 USD
Retailer 6$3,884 USD
Retailer 13$3,994 USD
Retailer 14$4,319 USD
Retailer 17$4,409 USD
Retailer 2$5,056 USD
Retailer 11$6,128 USD
Retailer 15$6,703 USD
Retailer 16$8,227 USD
Retailer 18$8,435 USD
Retailer 3$11,179 USD
Retailer 12$11,440 USD
Retailer 7$11,574 USD
Brilliant Earth$24,650 USD

35 data points across 19 retailers

19 retailers$2,505 USD to $24,650 USD

A
Cheapest Retailer
-
$2,505 USD
A
Retailer 2
-
$2,866 USD
View
A
Retailer 3
-
$2,991 USD
View
A
Retailer 4
-
$3,024 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$3,621 USD
View
A
Retailer 6
-
$3,832 USD
View
A
Retailer 7
-
$3,884 USD
View
A
Retailer 8
-
$3,994 USD
HK$31,200 HKD
View
A
Retailer 9
-
$4,328 USD
£3,408 GBP
View
A
Retailer 10
-
$4,409 USD
View
A
Retailer 11
-
$5,056 USD
€4,815 EUR
View
A
Retailer 12
-
$6,128 USD
A$9,428 AUD
View
A
Retailer 13
-
$6,703 USD
ZAR 108,293 ZAR
View
B+
Retailer 14
-
$8,227 USD
£6,478 GBP
View
B+
Retailer 15
-
$8,435 USD
View
B+
Retailer 16
-
$11,179 USD
View
B+
Retailer 17
-
$11,440 USD
A$17,600 AUD
View
B+
Retailer 18
-
$11,574 USD
SGD 15,641 SGD
View
Most Expensive
B
Brilliant Earth
18652902Y · Sep 29
$24,650 USD
View
18 more retailers have this diamond
Prices start from $2,505 USDSave up to $22,145 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
$2,505 USD