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Cushion|Lab Grown|IGI

3.09ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG715571310

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG715571310

Diamond specifications and retailer prices

From $543 USD
As of November 1, 2026
Save $5,097 USD (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,640 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 LG715571310 or 715571310. Listed at 15 retailers as of November 1, 2026, with prices from $543 to $5,640, a $5,097 spread on the same certified stone. Brilliant Earth lists it at $5,640. 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 angle33.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG715571310
Dimensions8.51 × 8.51 × 5.56 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.51 mm8.51 mm3.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG715571310
Side View
Table 65.0%Crown 33.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 65.3%

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: $5,640 USD|Low: $543 USD|High: $6,120 USD|Avg: $1,673 USD|-7.8%
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
November 3, 2026
Retailer 3$543 USD
Retailer 14$602 USD
Retailer 12$910 USD
Retailer 10$919 USD
Retailer 13$937 USD
Retailer 15$973 USD
Retailer 2$999 USD
Retailer 4$1,243 USD
Retailer 11$1,271 USD
Retailer 9$1,306 USD
Retailer 6$1,962 USD
Retailer 5$2,103 USD
Retailer 7$2,291 USD
Retailer 8$2,511 USD
Brilliant Earth$5,640 USD

43 data points across 15 retailers

15 retailers$543 USD to $5,640 USD

A
Cheapest Retailer
-
$543 USD
Final sale: no returns
Retailer 2
-
$602 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$910 USD
View
A
Retailer 4
-
$919 USD
€875 EUR
View
A
Retailer 5
-
$937 USD
View
A
Retailer 6
-
$973 USD
View
A
Retailer 7
-
$999 USD
£787 GBP
View
A
Retailer 8
-
$1,243 USD
View
A
Retailer 9
-
$1,271 USD
A$1,955 AUD
View
A
Retailer 10
-
$1,306 USD
ZAR 21,096 ZAR
View
B+
Retailer 11
-
$1,962 USD
View
B+
Retailer 12
-
$2,103 USD
View
B+
Retailer 13
-
$2,460 USD
View
B+
Retailer 14
-
$2,511 USD
£1,977 GBP
View
Most Expensive
B
Brilliant Earth
14814438A · Nov 2
$5,640 USD
View
14 more retailers have this diamond
Prices start from $543 USDSave up to $5,097 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
$543 USD