Round|Lab Grown|IGI

3.09ct E VS1 Round Lab Grown Diamond

ID • E/VS1 • IGI LG840643665

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840643665

Diamond specifications and retailer prices

From $423 USD
As of November 1, 2026
Save $3,267 USD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,690 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840643665 or 840643665. Listed at 21 retailers as of October 31, 2026, with prices from $423 to $3,690, a $3,267 spread on the same certified stone. Brilliant Earth lists it at $3,690. 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

3.09
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840643665
Dimensions9.35 × 9.33 × 5.74 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.35 mm9.33 mm3.09 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840643665
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.5%

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: $3,690 USD|Low: $423 USD|High: $5,640 USD|Avg: $1,710 USD|-34.6%
Brilliant Earth
Retailer 2
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Retailer 6
Retailer 7
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Retailer 21
November 1, 2026
Retailer 13$423 USD
Retailer 12$475 USD
Retailer 3$527 USD
Retailer 16$527 USD
Retailer 21$670 USD
Retailer 8$699 USD
Retailer 2$744 USD
Retailer 19$888 USD
Retailer 15$953 USD
Retailer 5$993 USD
Retailer 18$1,228 USD
Retailer 20$1,262 USD
Retailer 7$1,285 USD
Retailer 11$1,619 USD
Retailer 17$1,869 USD
Retailer 10$1,901 USD
Retailer 6$2,015 USD
Retailer 4$2,139 USD
Retailer 14$2,705 USD
Retailer 9$3,240 USD
Brilliant Earth$3,690 USD

19 data points across 21 retailers

21 retailers$423 USD to $3,690 USD

B
Cheapest Retailer
-
$423 USD
A
Retailer 2
-
$475 USD
View
Final sale: no returns
A
Retailer 3
-
$527 USD
View
A
Retailer 4
-
$527 USD
View
A
Retailer 5
-
$670 USD
View
B+
Retailer 6
-
$699 USD
View
A
Retailer 7
-
$744 USD
£586 GBP
View
A
Retailer 8
-
$799 USD
View
A
Retailer 9
-
$953 USD
£751 GBP
View
A
Retailer 10
-
$993 USD
View
A
Retailer 11
-
$1,228 USD
A$1,889 AUD
View
B+
Retailer 12
-
$1,262 USD
ZAR 20,384 ZAR
View
B+
Retailer 13
-
$1,285 USD
View
B+
Retailer 14
-
$1,619 USD
CA$2,248 CAD
View
B
Retailer 15
-
$1,869 USD
View
B+
Retailer 16
-
$1,901 USD
View
B+
Retailer 17
-
$2,015 USD
View
B
Retailer 18
-
$2,139 USD
£1,684 GBP
View
Retailer 19
-
$2,705 USD
View
Price last confirmed 14 days ago
B
Retailer 20
-
$3,240 USD
View
Most Expensive
B
Brilliant Earth
21834412Y · Oct 31
$3,690 USD
View
20 more retailers have this diamond
Prices start from $423 USDSave up to $3,267 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
3.09ct Round
$423 USD