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Round|Lab Grown|IGI

12.09ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG612326578

Shape and cutting style on the report: Round brilliant

Certificate IGI LG612326578

Diamond specifications and retailer prices

From $8,794 USD
HK$68,700 HKD
As of October 31, 2026
Save $17,756 USD (67%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $26,550 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 LG612326578 or 612326578. Listed at 3 retailers as of October 31, 2026, with prices from $8,794 to $26,550, a $17,756 spread on the same certified stone. Brilliant Earth lists it at $26,550. 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 angle35°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG612326578
Dimensions14.72 × 14.67 × 8.96 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
14.72 mm14.67 mm12.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG612326578
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: $26,550 USD|Low: $8,794 USD|High: $28,870 USD|Avg: $17,038 USD|-7.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 4, 2026
Retailer 5$8,794 USD
Retailer 3$10,780 USD
Retailer 4$10,872 USD
Retailer 6$17,337 USD
Retailer 2$18,885 USD
Brilliant Earth$26,550 USD

18 data points across 6 retailers

3 retailers$8,794 USD to $26,550 USD

B+
Cheapest Retailer
-
$8,794 USD
HK$68,700 HKD
Retailer 2
-
$18,885 USD
View
Price last confirmed 19 days ago
Most Expensive
B
Brilliant Earth
9248612A · Oct 31
$26,550 USD
View
2 more retailers have this diamond
Prices start from $8,794 USDSave up to $17,756 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.

B+
12.09ct Round
$8,794 USD