Cushion|Lab Grown|IGI

3.59ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG766685115

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

Certificate IGI LG766685115

Diamond specifications and retailer prices

From $4,590 USD
As of November 2, 2026
5 retailers carry this diamond
Most expensive: $4,590 USD at Brilliant Earth
View at Brilliant Earth

About this 3.59ct lab-grown cushion diamond

This 3.59ct lab-grown cushion 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 LG766685115 or 766685115. Listed at 5 retailers as of November 2, 2026. 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

3.59
Carat
F
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766685115
Dimensions8.71 × 8.50 × 5.70 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.71 mm8.50 mm3.59 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766685115
Side View
Table 60.0%Crown 36°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 67.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $4,590 USD|Low: $711 USD|High: $8,740 USD|Avg: $2,983 USD|-47.5%
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
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Retailer 16
October 18, 2026
Retailer 16$915 USD
Retailer 9$1,060 USD
Retailer 15$1,217 USD
Retailer 3$1,285 USD
Retailer 12$1,286 USD
Retailer 2$1,580 USD
Retailer 8$1,781 USD
Retailer 5$2,475 USD
Retailer 14$3,213 USD
Retailer 7$3,216 USD
Retailer 6$3,424 USD
Retailer 10$3,694 USD
Retailer 11$3,850 USD
Brilliant Earth$4,590 USD
Retailer 4$5,456 USD
Retailer 13$6,760 USD

26 data points across 16 retailers

5 retailers

Retailer 1
-
$1,286 USD
Price last confirmed 17 days ago
Retailer 2
-
$3,213 USD
View
Price last confirmed 17 days ago
Retailer 3
-
$3,694 USD
£2,909 GBP
View
Price last confirmed 18 days ago
Retailer 4
-
$3,850 USD
View
Price last confirmed 18 days ago
Most Expensive
B
Brilliant Earth
21400555B · Nov 2
$4,590 USD
View
4 more retailers have this diamond

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
3.59ct Cushion
$4,590 USD