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Round|Lab Grown|IGI

4.09ct F VVS2 Round Lab Grown Diamond

ID • F/VVS2 • IGI LG781630573

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781630573

Diamond specifications and retailer prices

From $652 USD
As of October 29, 2026
Save $2,551 USD (80%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $9,390 USD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 4.09ct lab-grown round diamond

This 4.09ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG781630573 or 781630573. Listed at 26 retailers as of October 29, 2026, with a 391% 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

4.09
Carat
F
Color
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781630573
Dimensions10.29 × 10.24 × 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
10.29 mm10.24 mm4.09 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781630573
Side View
Table 60.0%Crown 33.9°Girdle: MED-STKPavilion 40.9°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: $9,390 USD|Low: $626 USD|High: $9,390 USD|Avg: $1,913 USD
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
November 1, 2026
Retailer 4$652 USD
Retailer 5$756 USD
Retailer 7$896 USD
Retailer 9$935 USD
Retailer 11$1,015 USD
Retailer 3$1,082 USD
Retailer 2$1,205 USD
Retailer 8$1,205 USD
Retailer 13$1,609 USD
Retailer 10$1,620 USD
Retailer 14$1,931 USD
Retailer 6$2,579 USD
Retailer 12$3,203 USD
Retailer 15$3,685 USD
Brilliant Earth$9,390 USD

35 data points across 15 retailers

26 retailers$652 USD to $3,203 USD

A
Cheapest Retailer
-
$652 USD
Retailer 2
-
$652 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$746 USD
View
Price last confirmed 40 days ago
Retailer 4
-
$756 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$756 USD
View
A
Retailer 6
-
$896 USD
HK$7,000 HKD
View
A
Retailer 7
-
$935 USD
View
A
Retailer 8
-
$1,015 USD
£799 GBP
View
B+
Retailer 9
-
$1,082 USD
View
A
Retailer 10
-
$1,178 USD
View
A
Retailer 11
-
$1,205 USD
£948 GBP
View
A
Retailer 12
-
$1,205 USD
€1,148 EUR
View
B+
Retailer 13
-
$1,609 USD
ZAR 25,999 ZAR
View
B+
Retailer 14
-
$1,620 USD
A$2,493 AUD
View
B+
Retailer 15
-
$1,744 USD
View
B+
Retailer 16
-
$1,767 USD
View
Retailer 17
-
$1,931 USD
View
Price last confirmed 12 days ago
Retailer 18
-
$2,126 USD
View
Price last confirmed 40 days ago
B+
Retailer 19
-
$2,126 USD
View
B+
Retailer 20
-
$2,579 USD
View
B
Retailer 21
-
$2,600 USD
SGD 3,513 SGD
View
B
Retailer 22
-
$2,609 USD
View
B
Retailer 23
-
$2,686 USD
View
B
Retailer 24
-
$3,203 USD
£2,522 GBP
View
Retailer 25
-
$3,685 USD
View
Price last confirmed 13 days ago
Most Expensive
Brilliant Earth
20980114A · Oct 16
$9,390 USD
View
Price under review
25 more retailers have this diamond
Prices start from $652 USDSave up to $2,551 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
4.09ct Round
$652 USD