Round|Lab Grown|IGI

4.18ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG839676251

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839676251

Diamond specifications and retailer prices

From $2,283 USD
As of October 31, 2026
Save $7,517 USD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,800 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.18ct lab-grown round diamond

This 4.18ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839676251 or 839676251. Listed at 15 retailers as of October 31, 2026, with prices from $2,283 to $9,800, a $7,517 spread on the same certified stone. Brilliant Earth lists it at $9,800. 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

4.18
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839676251
Dimensions10.31 × 10.27 × 6.37 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
10.31 mm10.27 mm4.18 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839676251
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 41°Culet: NoneDepth 62.0%

Caratlytics Score

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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 31
Current: $9,800 USD|Low: $2,283 USD|High: $11,580 USD|Avg: $4,857 USD|-15.3%
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
November 1, 2026
Retailer 6$2,283 USD
Retailer 8$2,322 USD
Retailer 10$2,530 USD
Retailer 15$2,701 USD
Retailer 9$3,214 USD
Retailer 4$3,362 USD
Retailer 12$3,718 USD
Retailer 5$3,793 USD
Retailer 11$5,034 USD
Retailer 2$5,067 USD
Retailer 7$6,358 USD
Retailer 13$6,545 USD
Retailer 3$6,764 USD
Retailer 14$7,834 USD
Brilliant Earth$9,800 USD

21 data points across 15 retailers

15 retailers$2,283 USD to $9,800 USD

A
Cheapest Retailer
-
$2,283 USD
Final sale: no returns
A
Retailer 2
-
$2,322 USD
£1,828 GBP
View
A
Retailer 3
-
$2,530 USD
View
A
Retailer 4
-
$2,701 USD
HK$21,100 HKD
View
A
Retailer 5
-
$3,214 USD
£2,531 GBP
View
A
Retailer 6
-
$3,362 USD
View
A
Retailer 7
-
$3,718 USD
€3,541 EUR
View
A
Retailer 8
-
$3,793 USD
View
A
Retailer 9
-
$5,034 USD
ZAR 81,332 ZAR
View
A
Retailer 10
-
$5,067 USD
A$7,795 AUD
View
B+
Retailer 11
-
$6,358 USD
View
B+
Retailer 12
-
$6,545 USD
View
B+
Retailer 13
-
$6,764 USD
£5,326 GBP
View
B+
Retailer 14
-
$7,834 USD
SGD 10,587 SGD
View
Most Expensive
B+
Brilliant Earth
21812860A · Oct 31
$9,800 USD
View
14 more retailers have this diamond
Prices start from $2,283 USDSave up to $7,517 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
4.18ct Round
$2,283 USD