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Radiant|Lab Grown|IGI

3.09ct F VVS1 Radiant Lab Grown Diamond

ID • F/VVS1 • IGI LG851681657

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG851681657

Diamond specifications and retailer prices

From $578 USD
As of November 2, 2026
Save $4,102 USD (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,680 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG851681657 or 851681657. Listed at 20 retailers as of October 31, 2026, with prices from $578 to $4,680, a $4,102 spread on the same certified stone. Brilliant Earth lists it at $4,680. 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
F
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851681657
Dimensions10.29 × 7.14 × 4.87 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.29 mm7.14 mm3.09 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851681657
Side View
Table 64.0%Crown 40.7°Girdle: Slightly ThickPavilion 35.2°Culet: NoneDepth 68.2%

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 2
Current: $4,680 USD|Low: $578 USD|High: $4,680 USD|Avg: $1,747 USD
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
Retailer 19
Retailer 20
November 2, 2026
Retailer 11$578 USD
Retailer 6$647 USD
Retailer 15$648 USD
Retailer 18$717 USD
Retailer 2$778 USD
Retailer 19$850 USD
Retailer 9$955 USD
Retailer 5$1,067 USD
Retailer 8$1,068 USD
Retailer 13$1,120 USD
Retailer 3$1,796 USD
Retailer 20$1,886 USD
Retailer 4$2,310 USD
Retailer 10$2,323 USD
Retailer 12$2,349 USD
Retailer 17$2,401 USD
Retailer 7$2,681 USD
Retailer 16$3,114 USD
Retailer 14$3,395 USD
Brilliant Earth$4,680 USD

4 data points across 20 retailers

20 retailers$578 USD to $4,680 USD

A
Cheapest Retailer
-
$578 USD
A
Retailer 2
-
$647 USD
View
Final sale: no returns
A
Retailer 3
-
$648 USD
View
A
Retailer 4
-
$717 USD
View
A
Retailer 5
-
$778 USD
£613 GBP
View
A
Retailer 6
-
$850 USD
View
A
Retailer 7
-
$955 USD
View
A
Retailer 8
-
$1,067 USD
€1,016 EUR
View
A
Retailer 9
-
$1,068 USD
View
A
Retailer 10
-
$1,120 USD
£882 GBP
View
B+
Retailer 11
-
$1,796 USD
View
B+
Retailer 12
-
$1,886 USD
View
B+
Retailer 13
-
$2,310 USD
View
B+
Retailer 14
-
$2,323 USD
View
B+
Retailer 15
-
$2,349 USD
View
B
Retailer 16
-
$2,401 USD
View
B
Retailer 17
-
$2,681 USD
A$4,125 AUD
View
B
Retailer 18
-
$3,114 USD
£2,452 GBP
View
B
Retailer 19
-
$3,395 USD
View
Most Expensive
B
Brilliant Earth
22378146A · Oct 31
$4,680 USD
View
19 more retailers have this diamond
Prices start from $578 USDSave up to $4,102 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 Radiant
$578 USD