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Cushion|Lab Grown|IGI

3.09ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG786633866

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG786633866

Diamond specifications and retailer prices

From $728 USD
As of November 1, 2026
Save $4,922 USD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,650 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG786633866 or 786633866. Listed at 21 retailers as of November 1, 2026, with prices from $728 to $5,650, a $4,922 spread on the same certified stone. Brilliant Earth lists it at $5,650. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786633866
Dimensions10.09 × 7.98 × 5.23 mm
L/W Ratio1.26
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.09 mm7.98 mm3.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786633866
Side View
Table 54.0%Crown 36.2°Girdle: MediumPavilion 38.6°Culet: LargeDepth 65.5%

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: $5,650 USD|Low: $728 USD|High: $5,820 USD|Avg: $2,076 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
November 3, 2026
Retailer 14$728 USD
Retailer 3$792 USD
Retailer 10$815 USD
Retailer 6$844 USD
Retailer 15$844 USD
Retailer 18$1,020 USD
Retailer 9$1,146 USD
Retailer 5$1,210 USD
Retailer 2$1,354 USD
Retailer 16$1,477 USD
Retailer 19$1,906 USD
Retailer 4$1,960 USD
Retailer 13$2,079 USD
Retailer 17$2,373 USD
Retailer 11$2,621 USD
Retailer 8$2,844 USD
Retailer 7$2,853 USD
Retailer 12$3,315 USD
Brilliant Earth$5,650 USD

43 data points across 19 retailers

21 retailers$728 USD to $5,650 USD

A
Cheapest Retailer
-
$728 USD
A
Retailer 2
-
$792 USD
View
Retailer 3
-
$815 USD
View
Price last confirmed 11 days ago
Final sale: no returns
Retailer 4
-
$844 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$844 USD
View
A
Retailer 6
-
$1,020 USD
View
A
Retailer 7
-
$1,146 USD
View
A
Retailer 8
-
$1,210 USD
View
A
Retailer 9
-
$1,325 USD
View
A
Retailer 10
-
$1,354 USD
£1,066 GBP
View
A
Retailer 11
-
$1,477 USD
€1,407 EUR
View
B+
Retailer 12
-
$1,906 USD
A$2,932 AUD
View
B+
Retailer 13
-
$1,960 USD
ZAR 31,659 ZAR
View
B+
Retailer 14
-
$2,079 USD
View
B+
Retailer 15
-
$2,373 USD
View
B
Retailer 16
-
$2,621 USD
£2,064 GBP
View
B
Retailer 17
-
$2,844 USD
SGD 3,843 SGD
View
B
Retailer 18
-
$2,853 USD
View
B
Retailer 19
-
$2,909 USD
View
B
Retailer 20
-
$3,315 USD
£2,610 GBP
View
Most Expensive
B
Brilliant Earth
18756282A · Nov 2
$5,650 USD
View
20 more retailers have this diamond
Prices start from $728 USDSave up to $4,922 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 Cushion
$728 USD