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Radiant|Lab Grown|IGI

12.09ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG791645523

Shape and cutting style on the report: Cut cornered rectangular mixed cut

Certificate IGI LG791645523

Diamond specifications and retailer prices

From €4,409 EUR
$4,945 USD
As of November 3, 2026
Save €11,282 EUR (72%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €15,691 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.09ct lab-grown radiant diamond

This 12.09ct lab-grown radiant 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 LG791645523 or 791645523. Listed at 17 retailers as of October 31, 2026, with prices from €4,409 to €15,691, a €11,282 spread on the same certified stone. Taylor and Hart lists it at €15,691. 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
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle45°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791645523
Dimensions14.86 × 10.45 × 7.38 mm
L/W Ratio1.42
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.86 mm10.45 mm12.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791645523
Side View
Table 64.0%Crown 45°Girdle: MediumPavilion 45°Culet: LargeDepth 70.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: €5,705 EUR|Low: €3,647 EUR|High: €15,691 EUR|Avg: €6,766 EUR|-43.9%
Retailer 1
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
Taylor and Hart
November 3, 2026
Retailer 15€3,799 EUR
Retailer 13€3,981 EUR
Retailer 2€4,406 EUR
Retailer 4€4,406 EUR
Retailer 10€4,409 EUR
Retailer 3€4,450 EUR
Retailer 7€5,506 EUR
Retailer 1€5,705 EUR
Retailer 12€5,734 EUR
Retailer 6€6,196 EUR
Retailer 11€6,410 EUR
Retailer 9€6,820 EUR
Retailer 14€8,232 EUR
Retailer 8€8,314 EUR
Retailer 5€9,011 EUR
Taylor and Hart€15,691 EUR

43 data points across 16 retailers

17 retailers€4,409 EUR to €15,691 EUR

Retailer 1
-
€3,799 EUR
$4,261 USD
Price last confirmed 10 days ago
Retailer 2
-
€3,981 EUR
$4,465 USD
View
Price last confirmed 13 days ago
Retailer 3
-
€4,406 EUR
$4,942 USD
View
Price last confirmed 12 days ago
Retailer 4
-
€4,406 EUR
$4,942 USD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
€4,409 EUR
$4,945 USD
View
B+
Retailer 6
-
€4,450 EUR
$4,991 USD
View
Retailer 7
-
€5,506 EUR
$6,176 USD
View
Price last confirmed 11 days ago
B+
Retailer 8
-
€5,705 EUR
£5,039 GBP
View
B+
Retailer 9
-
€5,734 EUR
$6,431 USD
View
Retailer 10
-
€6,032 EUR
$6,765 USD
View
Price last confirmed 12 days ago
B
Retailer 11
-
€6,196 EUR
£5,472 GBP
View
B+
Retailer 12
-
€6,410 EUR
$7,190 USD
View
B
Retailer 13
-
€6,820 EUR
ZAR 123,583 ZAR
View
B
Retailer 14
-
€8,232 EUR
$9,233 USD
View
B
Retailer 15
-
€8,314 EUR
A$14,346 AUD
View
B
Retailer 16
-
€9,011 EUR
$10,107 USD
View
Most Expensive
B
Taylor and Hart
76QT5S6 · Oct 31
€15,691 EUR
$17,599 USD
View
16 more retailers have this diamond
Prices start from €4,409 EURSave up to €11,282 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.

B+
12.09ct Radiant
€4,409 EUR