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Round|Lab Grown|IGI

4.26ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG760565956

Shape and cutting style on the report: Round brilliant

Certificate IGI LG760565956

Diamond specifications and retailer prices

From $2,142 USD
As of October 29, 2026
Save $18,738 USD (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $20,880 USD at Brilliant Earth · As of October 30, 2026
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 LG760565956 or 760565956. Listed at 23 retailers as of October 29, 2026, with prices from $2,142 to $20,880, a $18,738 spread on the same certified stone. Brilliant Earth lists it at $20,880. 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 angle34.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760565956
Dimensions10.36 × 10.39 × 6.44 mm
L/W Ratio1.00
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
10.36 mm10.39 mm4.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760565956
Side View
Table 57.0%Crown 34.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $20,880 USD|Low: $2,142 USD|High: $20,880 USD|Avg: $5,606 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 12
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Retailer 20
October 30, 2026
Retailer 7$2,142 USD
Retailer 15$2,503 USD
Retailer 17$2,505 USD
Retailer 12$2,929 USD
Retailer 4$3,117 USD
Retailer 2$3,357 USD
Retailer 20$3,643 USD
Retailer 16$3,704 USD
Retailer 3$3,881 USD
Retailer 13$5,213 USD
Retailer 18$5,255 USD
Retailer 10$5,629 USD
Retailer 9$5,750 USD
Retailer 19$6,130 USD
Retailer 6$6,274 USD
Retailer 14$6,680 USD
Retailer 11$8,564 USD
Retailer 8$11,412 USD
Retailer 5$13,160 USD
Brilliant Earth$20,880 USD

34 data points across 20 retailers

23 retailers$2,142 USD to $20,880 USD

A
Cheapest Retailer
-
$2,142 USD
Final sale: no returns
A
Retailer 2
-
$2,253 USD
View
Retailer 3
-
$2,336 USD
View
Price last confirmed 37 days ago
A
Retailer 4
-
$2,505 USD
View
Retailer 5
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$2,542 USD
View
Price last confirmed 37 days ago
Retailer 6
-
$2,673 USD
View
Price last confirmed 33 days ago
A
Retailer 7
-
$3,117 USD
View
A
Retailer 8
-
$3,357 USD
£2,643 GBP
View
A
Retailer 9
-
$3,643 USD
View
A
Retailer 10
-
$3,704 USD
€3,528 EUR
View
Retailer 11
-
$3,725 USD
View
Price last confirmed 32 days ago
A
Retailer 12
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$3,881 USD
View
A
Retailer 13
-
$5,213 USD
ZAR 84,214 ZAR
View
Retailer 14
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$5,255 USD
A$8,085 AUD
View
Price last confirmed 8 days ago
A
Retailer 15
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$5,629 USD
View
A
Retailer 16
-
$5,750 USD
View
Retailer 17
-
$6,130 USD
View
Price last confirmed 9 days ago
A
Retailer 18
-
$6,274 USD
View
B+
Retailer 19
-
$6,680 USD
£5,260 GBP
View
B+
Retailer 20
-
$8,564 USD
View
B+
Retailer 21
-
$11,412 USD
View
B+
Retailer 22
-
$13,160 USD
View
Most Expensive
B
Brilliant Earth
21804957A · Oct 30
$20,880 USD
View
22 more retailers have this diamond
Prices start from $2,142 USDSave up to $18,738 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.

A
4.26ct Round
$2,142 USD