Round|Lab Grown|IGI

4.25ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG810620388

Shape and cutting style on the report: Round brilliant

Certificate IGI LG810620388

Diamond specifications and retailer prices

From $3,374 USD
As of October 29, 2026
Save $11,376 USD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $14,750 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.25ct lab-grown round diamond

This 4.25ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG810620388 or 810620388. Listed at 21 retailers as of October 29, 2026, with prices from $3,374 to $14,750, a $11,376 spread on the same certified stone. Brilliant Earth lists it at $14,750. 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

4.25
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG810620388
Dimensions10.39 × 10.45 × 6.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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 mm10.45 mm4.25 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG810620388
Side View
Table 58.0%Crown 34.6°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 60.8%

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 29
Current: $14,750 USD|Low: $3,374 USD|High: $18,910 USD|Avg: $7,268 USD|-22.0%
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 14$3,374 USD
Retailer 8$3,671 USD
Retailer 10$3,779 USD
Retailer 5$3,838 USD
Retailer 4$3,914 USD
Retailer 12$3,914 USD
Retailer 20$3,915 USD
Retailer 16$4,557 USD
Retailer 7$4,848 USD
Retailer 3$4,891 USD
Retailer 2$4,923 USD
Retailer 13$5,199 USD
Retailer 21$5,618 USD
Retailer 19$6,933 USD
Retailer 15$8,330 USD
Retailer 9$9,804 USD
Retailer 17$9,975 USD
Retailer 6$10,861 USD
Retailer 18$13,185 USD
Retailer 11$13,736 USD
Brilliant Earth$14,750 USD

33 data points across 21 retailers

21 retailers$3,374 USD to $14,750 USD

A
Cheapest Retailer
-
$3,374 USD
A
Retailer 2
-
$3,671 USD
View
A
Retailer 3
-
$3,779 USD
View
Final sale: no returns
A
Retailer 4
-
$3,838 USD
View
Retailer 5
-
$3,914 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$3,914 USD
View
A
Retailer 7
-
$3,915 USD
View
A
Retailer 8
-
$4,557 USD
HK$35,600 HKD
View
A
Retailer 9
-
$4,848 USD
View
A
Retailer 10
-
$4,891 USD
View
A
Retailer 11
-
$4,923 USD
View
A
Retailer 12
-
$5,199 USD
£4,094 GBP
View
A
Retailer 13
-
$5,618 USD
View
B+
Retailer 14
-
$6,933 USD
€6,603 EUR
View
B+
Retailer 15
-
$8,330 USD
ZAR 134,572 ZAR
View
B+
Retailer 16
-
$9,804 USD
View
B
Retailer 17
-
$9,975 USD
£7,854 GBP
View
B+
Retailer 18
-
$10,861 USD
View
B+
Retailer 19
-
$13,185 USD
SGD 17,818 SGD
View
B
Retailer 20
-
$13,736 USD
View
Most Expensive
B
Brilliant Earth
20726621A · Oct 30
$14,750 USD
View
20 more retailers have this diamond
Prices start from $3,374 USDSave up to $11,376 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
4.25ct Round
$3,374 USD