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Round|Lab Grown|IGI

4.23ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG592320708

Shape and cutting style on the report: Round brilliant

Certificate IGI LG592320708

Diamond specifications and retailer prices

From $2,167 USD
As of November 1, 2026
Save $7,413 USD (77%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $9,580 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.23ct lab-grown round diamond

This 4.23ct 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 LG592320708 or 592320708. Listed at 22 retailers as of October 31, 2026, with prices from $2,167 to $9,580, a $7,413 spread on the same certified stone. Brilliant Earth lists it at $9,580. 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

4.23
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG592320708
Dimensions10.33 × 10.37 × 6.39 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
10.33 mm10.37 mm4.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG592320708
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
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: $9,580 USD|Low: $2,080 USD|High: $11,740 USD|Avg: $4,268 USD|-18.4%
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
November 1, 2026
Retailer 16$2,167 USD
Retailer 6$2,357 USD
Retailer 8$2,426 USD
Retailer 4$2,513 USD
Retailer 14$2,680 USD
Retailer 5$2,750 USD
Retailer 10$3,417 USD
Retailer 7$3,455 USD
Retailer 15$3,939 USD
Retailer 11$3,977 USD
Retailer 2$4,148 USD
Retailer 12$5,350 USD
Retailer 9$5,385 USD
Retailer 3$6,492 USD
Retailer 13$6,855 USD
Brilliant Earth$9,580 USD

44 data points across 16 retailers

22 retailers$2,167 USD to $9,580 USD

A
Cheapest Retailer
-
$2,167 USD
A
Retailer 2
-
$2,357 USD
View
A
Retailer 3
-
$2,426 USD
View
Final sale: no returns
A
Retailer 4
-
$2,513 USD
View
Retailer 5
-
$2,513 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$2,680 USD
View
A
Retailer 7
-
$2,750 USD
View
A
Retailer 8
-
$3,417 USD
£2,691 GBP
View
A
Retailer 9
-
$3,455 USD
View
A
Retailer 10
-
$3,939 USD
View
A
Retailer 11
-
$3,977 USD
€3,788 EUR
View
A
Retailer 12
-
$4,148 USD
View
A
Retailer 13
-
$4,406 USD
View
A
Retailer 14
-
$5,350 USD
ZAR 86,430 ZAR
View
A
Retailer 15
-
$5,385 USD
A$8,284 AUD
View
B+
Retailer 16
-
$6,492 USD
View
B+
Retailer 17
-
$6,711 USD
View
B+
Retailer 18
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$6,855 USD
£5,398 GBP
View
B+
Retailer 19
-
$7,122 USD
View
B+
Retailer 20
-
$7,212 USD
View
B+
Retailer 21
-
$8,786 USD
View
Most Expensive
B+
Brilliant Earth
10021954A · Oct 31
$9,580 USD
View
21 more retailers have this diamond
Prices start from $2,167 USDSave up to $7,413 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
4.23ct Round
$2,167 USD