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Round|Lab Grown|IGI

4.33ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG578322750

Shape and cutting style on the report: Round brilliant

Certificate IGI LG578322750

Diamond specifications and retailer prices

From $3,306 USD
As of November 1, 2026
Save $21,948 USD (87%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $25,254 USD at Mervis Diamond Importers · As of October 31, 2026
View at Mervis Diamond Importers

About this 4.33ct lab-grown round diamond

This 4.33ct 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 LG578322750 or 578322750. Listed at 23 retailers as of October 31, 2026, with prices from $3,306 to $25,254, a $21,948 spread on the same certified stone. Mervis Diamond Importers lists it at $25,254. 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

4.33
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578322750
Dimensions10.39 × 10.43 × 6.43 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
10.39 mm10.43 mm4.33 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578322750
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.7%

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: $25,254 USD|Low: $3,173 USD|High: $25,254 USD|Avg: $7,970 USD
Mervis Diamond Importers
Retailer 2
Retailer 3
Retailer 4
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Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 16$3,306 USD
Retailer 7$3,597 USD
Retailer 9$3,702 USD
Retailer 3$3,835 USD
Retailer 6$3,846 USD
Retailer 15$3,990 USD
Retailer 8$5,289 USD
Retailer 14$5,289 USD
Retailer 12$5,507 USD
Retailer 4$5,953 USD
Retailer 13$9,008 USD
Retailer 2$9,067 USD
Retailer 11$9,164 USD
Retailer 18$9,646 USD
Retailer 5$12,027 USD
Retailer 10$12,265 USD
Retailer 17$14,270 USD
Mervis Diamond Importers$25,254 USD

44 data points across 18 retailers

23 retailers$3,306 USD to $25,254 USD

A
Cheapest Retailer
-
$3,306 USD
A
Retailer 2
-
$3,597 USD
View
A
Retailer 3
-
$3,702 USD
View
Final sale: no returns
A
Retailer 4
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$3,763 USD
View
A
Retailer 5
-
$3,835 USD
View
Retailer 6
-
$3,835 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$3,846 USD
View
A
Retailer 8
-
$3,990 USD
View
A
Retailer 9
-
$5,289 USD
View
A
Retailer 10
-
$5,289 USD
View
A
Retailer 11
-
$5,507 USD
£4,336 GBP
View
A
Retailer 12
-
$5,953 USD
View
B+
Retailer 13
-
$9,008 USD
ZAR 145,520 ZAR
View
B+
Retailer 14
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$9,067 USD
£7,139 GBP
View
B+
Retailer 15
-
$9,164 USD
A$14,098 AUD
View
B+
Retailer 16
-
$9,646 USD
View
B+
Retailer 17
-
$10,557 USD
View
B
Retailer 18
-
$12,027 USD
View
B
Retailer 19
-
$12,265 USD
View
B
Retailer 20
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$14,270 USD
View
B
Retailer 21
-
$14,933 USD
View
B
Retailer 22
-
$22,740 USD
View
Most Expensive
B
Mervis Diamond Importers
1985409139 · Oct 31
$25,254 USD
View
22 more retailers have this diamond
Prices start from $3,306 USDSave up to $21,948 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
4.33ct Round
$3,306 USD