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Round|Lab Grown|IGI

4.20ct E VS2 Round Lab Grown Diamond

EX • E/VS2 • IGI LG733547273

Shape and cutting style on the report: Round brilliant

Certificate IGI LG733547273

Diamond specifications and retailer prices

From $573 USD
As of October 29, 2026
Save $2,564 USD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,390 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.2ct lab-grown round diamond

This 4.2ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG733547273 or 733547273. Listed at 17 retailers as of October 29, 2026, with a 447% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.20
Carat
E
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733547273
Dimensions10.50 × 10.46 × 6.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.50 mm10.46 mm4.20 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733547273
Side View
Table 60.0%Crown 32°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 59.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $8,390 USD|Low: $567 USD|High: $8,640 USD|Avg: $1,987 USD|-2.9%
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
Retailer 17
October 29, 2026
Retailer 10$573 USD
Retailer 15$649 USD
Retailer 9$711 USD
Retailer 7$719 USD
Retailer 14$850 USD
Retailer 5$1,039 USD
Retailer 16$1,106 USD
Retailer 11$1,116 USD
Retailer 13$1,192 USD
Retailer 3$1,684 USD
Retailer 17$1,783 USD
Retailer 6$1,890 USD
Retailer 2$2,073 USD
Retailer 8$2,303 USD
Retailer 4$2,314 USD
Retailer 12$3,137 USD
Brilliant Earth$8,390 USD

42 data points across 17 retailers

17 retailers$573 USD to $3,137 USD

A
Cheapest Retailer
-
$573 USD
A
Retailer 2
-
$649 USD
View
A
Retailer 3
-
$711 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$719 USD
View
A
Retailer 5
-
$850 USD
View
A
Retailer 6
-
$1,039 USD
View
B+
Retailer 7
-
$1,106 USD
View
A
Retailer 8
-
$1,116 USD
£879 GBP
View
A
Retailer 9
-
$1,192 USD
€1,135 EUR
View
B+
Retailer 10
-
$1,684 USD
View
B+
Retailer 11
-
$1,783 USD
View
B+
Retailer 12
-
$1,890 USD
View
B+
Retailer 13
-
$2,073 USD
£1,632 GBP
View
B+
Retailer 14
-
$2,303 USD
View
Price last confirmed 11 days ago
B+
Retailer 15
-
$2,314 USD
View
B
Retailer 16
-
$3,137 USD
£2,470 GBP
View
Most Expensive
B
Brilliant Earth
16817197A · Oct 29
$8,390 USD
View
Price under review
16 more retailers have this diamond
Prices start from $573 USDSave up to $2,564 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
4.20ct Round
$573 USD