Round|Lab Grown|IGI

4.26ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG711516896

Certificate IGI LG711516896

Diamond specifications and retailer prices

From $2,370 USD
Save $16,350 USD (87%) vs most expensive(unlock to see where)
23 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 LG711516896 or 711516896. Listed at 23 retailers, with a 690% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG711516896
Dimensions10.43 × 10.39 × 6.43 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
10.43 mm10.39 mm4.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG711516896
Side View
Table 56.0%Crown 34.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.7%

Caratlytics Score

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

Price History

Last verified: Sep 30
Current: $24,650 USD|Low: $1,720 USD|High: $24,650 USD|Avg: $9,714 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
September 29, 2026
Retailer 9$2,370 USD
Retailer 19$2,698 USD
Retailer 18$2,775 USD
Retailer 20$3,448 USD
Retailer 2$3,705 USD
Retailer 3$3,752 USD
Retailer 16$4,026 USD
Retailer 7$4,031 USD
Retailer 13$5,664 USD
Retailer 15$5,812 USD
Retailer 5$6,885 USD
Retailer 17$7,091 USD
Retailer 14$7,441 USD
Retailer 8$9,464 USD
Retailer 10$9,960 USD
Retailer 6$12,618 USD
Retailer 4$14,560 USD
Retailer 11$18,720 USD
Retailer 12$18,720 USD
Brilliant Earth$24,650 USD

37 data points across 20 retailers

23 retailers$2,370 USD to $18,720 USD

A
Cheapest Retailer
-
$2,370 USD
A
Retailer 2
-
$2,698 USD
View
A
Retailer 3
-
$2,775 USD
View
A
Retailer 4
-
$3,448 USD
View
A
Retailer 5
-
$3,713 USD
£2,924 GBP
View
A
Retailer 6
-
$3,752 USD
View
A
Retailer 7
-
$4,026 USD
€3,834 EUR
View
A
Retailer 8
-
$4,031 USD
View
A
Retailer 9
-
$5,664 USD
ZAR 91,497 ZAR
View
A
Retailer 10
-
$5,812 USD
A$8,942 AUD
View
A
Retailer 11
-
$6,203 USD
View
A
Retailer 12
-
$6,885 USD
View
B+
Retailer 13
-
$7,091 USD
View
B+
Retailer 14
-
$7,441 USD
£5,859 GBP
View
B+
Retailer 15
-
$9,464 USD
View
B+
Retailer 16
-
$9,613 USD
View
Price last confirmed 12 days ago
B+
Retailer 17
-
$9,960 USD
View
B+
Retailer 18
-
$12,618 USD
View
B
Retailer 19
-
$14,560 USD
View
B
Retailer 20
-
$17,005 USD
View
Price last confirmed 38 days ago
B
Retailer 21
-
$18,720 USD
View
Price last confirmed 20 days ago
B
Retailer 22
-
$18,720 USD
View
Most Expensive
B
Brilliant Earth
16521058A · Sep 23
$24,650 USD
View
Price last confirmed 7 days ago
22 more retailers have this diamond
Prices start from $2,370 USDSave up to $16,350 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
$2,370 USD