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Round|Lab Grown|IGI

12.09ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG610350434

Shape and cutting style on the report: Round brilliant

Certificate IGI LG610350434

Diamond specifications and retailer prices

From $4,082 USD
As of October 31, 2026
Save $22,158 USD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $26,240 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.09ct lab-grown round diamond

This 12.09ct lab-grown round sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG610350434 or 610350434. Listed at 20 retailers as of October 31, 2026, with prices from $4,082 to $26,240, a $22,158 spread on the same certified stone. Brilliant Earth lists it at $26,240. 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

12.09
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG610350434
Dimensions14.84 × 14.89 × 8.93 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.84 mm14.89 mm12.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG610350434
Side View
Table 59.0%Crown 32.8°Girdle: MediumPavilion 41°Culet: NoneDepth 60.1%

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 31
Current: $26,240 USD|Low: $3,500 USD|High: $27,060 USD|Avg: $7,409 USD|-3.0%
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
Retailer 18
November 1, 2026
Retailer 18$3,646 USD
Retailer 7$3,967 USD
Retailer 9$4,082 USD
Retailer 3$4,229 USD
Retailer 15$4,230 USD
Retailer 6$4,504 USD
Retailer 8$5,285 USD
Retailer 11$5,503 USD
Retailer 17$5,719 USD
Retailer 13$6,546 USD
Retailer 5$6,557 USD
Retailer 10$6,746 USD
Retailer 12$6,786 USD
Retailer 16$7,933 USD
Retailer 14$9,813 USD
Retailer 2$10,582 USD
Retailer 4$10,639 USD
Brilliant Earth$26,240 USD

43 data points across 18 retailers

20 retailers$4,082 USD to $26,240 USD

Retailer 1
-
$3,646 USD
Price last confirmed 11 days ago
Retailer 2
-
$3,967 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$4,082 USD
View
Final sale: no returns
Retailer 4
-
$4,229 USD
View
Price last confirmed 19 days ago
Retailer 5
-
$4,229 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$4,230 USD
View
A
Retailer 7
-
$4,504 USD
View
Retailer 8
-
$5,285 USD
View
Price last confirmed 10 days ago
A
Retailer 9
-
$5,503 USD
£4,333 GBP
View
A
Retailer 10
-
$5,719 USD
View
B+
Retailer 11
-
$6,546 USD
ZAR 105,752 ZAR
View
Retailer 12
-
$6,557 USD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$6,786 USD
€6,463 EUR
View
Retailer 14
-
$7,933 USD
A$12,204 AUD
View
Price last confirmed 9 days ago
B
Retailer 15
-
$9,813 USD
View
B+
Retailer 16
-
$10,582 USD
A$16,280 AUD
View
B
Retailer 17
-
$10,639 USD
View
B
Retailer 18
-
$11,741 USD
View
B
Retailer 19
-
$14,921 USD
View
Most Expensive
B
Brilliant Earth
20601911A · Oct 31
$26,240 USD
View
19 more retailers have this diamond
Prices start from $4,082 USDSave up to $22,158 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
12.09ct Round
$4,082 USD