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Round|Lab Grown|IGI

4.31ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG579359347

Shape and cutting style on the report: Round brilliant

Certificate IGI LG579359347

Diamond specifications and retailer prices

From $3,291 USD
As of November 1, 2026
Save $21,731 USD (87%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $25,022 USD at Mervis Diamond Importers · As of October 31, 2026
View at Mervis Diamond Importers

About this 4.31ct lab-grown round diamond

This 4.31ct 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 LG579359347 or 579359347. Listed at 23 retailers as of October 31, 2026, with prices from $3,291 to $25,022, a $21,731 spread on the same certified stone. Mervis Diamond Importers lists it at $25,022. 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

4.31
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579359347
Dimensions10.43 × 10.39 × 6.40 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
10.43 mm10.39 mm4.31 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579359347
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.5%

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: Nov 1
Current: $25,022 USD|Low: $3,160 USD|High: $25,022 USD|Avg: $7,931 USD
Mervis Diamond Importers
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
November 1, 2026
Retailer 16$3,291 USD
Retailer 7$3,581 USD
Retailer 9$3,686 USD
Retailer 18$3,818 USD
Retailer 6$3,831 USD
Retailer 15$3,975 USD
Retailer 8$5,266 USD
Retailer 14$5,266 USD
Retailer 12$5,482 USD
Retailer 4$5,926 USD
Retailer 13$8,969 USD
Retailer 2$9,027 USD
Retailer 11$9,121 USD
Retailer 3$9,602 USD
Retailer 5$11,973 USD
Retailer 10$12,208 USD
Retailer 17$14,210 USD
Mervis Diamond Importers$25,022 USD

44 data points across 18 retailers

23 retailers$3,291 USD to $25,022 USD

A
Cheapest Retailer
-
$3,291 USD
A
Retailer 2
-
$3,581 USD
View
A
Retailer 3
-
$3,686 USD
View
Final sale: no returns
A
Retailer 4
-
$3,732 USD
View
Retailer 5
-
$3,818 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$3,818 USD
View
A
Retailer 7
-
$3,831 USD
View
A
Retailer 8
-
$3,975 USD
View
A
Retailer 9
-
$5,266 USD
View
A
Retailer 10
-
$5,266 USD
View
A
Retailer 11
-
$5,482 USD
£4,316 GBP
View
A
Retailer 12
-
$5,926 USD
View
B+
Retailer 13
-
$8,969 USD
ZAR 144,887 ZAR
View
B+
Retailer 14
-
$9,027 USD
£7,108 GBP
View
B+
Retailer 15
-
$9,121 USD
A$14,033 AUD
View
B+
Retailer 16
-
$9,602 USD
View
B+
Retailer 17
-
$10,511 USD
View
B+
Retailer 18
-
$11,973 USD
View
B
Retailer 19
-
$12,208 USD
View
B
Retailer 20
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$14,210 USD
View
B
Retailer 21
-
$14,863 USD
View
B
Retailer 22
-
$22,640 USD
View
Most Expensive
B
Mervis Diamond Importers
1985409140 · Oct 31
$25,022 USD
View
22 more retailers have this diamond
Prices start from $3,291 USDSave up to $21,731 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
4.31ct Round
$3,291 USD