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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 €3,654 EUR
$4,082 USD
As of November 1, 2026
Save €19,833 EUR (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €23,487 EUR 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 €3,654 to €23,487, a €19,833 spread on the same certified stone. Brilliant Earth lists it at €23,487. 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: Nov 1
Current: €23,487 EUR|Low: €3,133 EUR|High: €24,221 EUR|Avg: €6,610 EUR|-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€3,263 EUR
Retailer 7€3,551 EUR
Retailer 9€3,654 EUR
Retailer 3€3,785 EUR
Retailer 16€3,786 EUR
Retailer 6€4,031 EUR
Retailer 8€4,731 EUR
Retailer 12€4,925 EUR
Retailer 17€5,119 EUR
Retailer 14€5,859 EUR
Retailer 5€5,869 EUR
Retailer 10€6,038 EUR
Retailer 13€6,074 EUR
Retailer 2€7,088 EUR
Retailer 15€8,784 EUR
Retailer 11€9,472 EUR
Retailer 4€9,523 EUR
Brilliant Earth€23,487 EUR

42 data points across 18 retailers

20 retailers€3,654 EUR to €23,487 EUR

Retailer 1
-
€3,263 EUR
$3,646 USD
Price last confirmed 11 days ago
Retailer 2
-
€3,551 EUR
$3,967 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
€3,654 EUR
$4,082 USD
View
Final sale: no returns
Retailer 4
-
€3,785 EUR
$4,229 USD
View
Price last confirmed 20 days ago
Retailer 5
-
€3,785 EUR
$4,229 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
€3,786 EUR
$4,230 USD
View
A
Retailer 7
-
€4,031 EUR
$4,504 USD
View
Retailer 8
-
€4,731 EUR
$5,285 USD
View
Price last confirmed 11 days ago
A
Retailer 9
-
€4,925 EUR
£4,333 GBP
View
A
Retailer 10
-
€5,119 EUR
$5,719 USD
View
B+
Retailer 11
-
€5,859 EUR
ZAR 105,752 ZAR
View
B+
Retailer 12
-
€5,869 EUR
$6,557 USD
View
B+
Retailer 13
-
€6,074 EUR
View
B+
Retailer 14
-
€7,088 EUR
A$12,183 AUD
View
B
Retailer 15
-
€8,784 EUR
$9,813 USD
View
B+
Retailer 16
-
€9,472 EUR
A$16,280 AUD
View
B
Retailer 17
-
€9,523 EUR
$10,639 USD
View
B
Retailer 18
-
€10,509 EUR
$11,741 USD
View
B
Retailer 19
-
€13,355 EUR
$14,921 USD
View
Most Expensive
B
Brilliant Earth
20601911A · Oct 31
€23,487 EUR
$26,240 USD
View
19 more retailers have this diamond
Prices start from €3,654 EURSave up to €19,833 EUR

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
€3,654 EUR