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Cushion|Lab Grown|IGI

2.51ct F VVS1 Cushion Lab Grown Diamond

VG • F/VVS1 • IGI LG818658621

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

Certificate IGI LG818658621

Diamond specifications and retailer prices

From $514 USD
As of November 1, 2026
Save $2,456 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,970 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 2.51ct lab-grown cushion diamond

This 2.51ct lab-grown cushion sits in the two to three carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG818658621 or 818658621. Listed at 16 retailers as of November 1, 2026, with prices from $514 to $2,970, a $2,456 spread on the same certified stone. Brilliant Earth lists it at $2,970. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
F
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658621
Dimensions7.90 × 7.87 × 5.30 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.90 mm7.87 mm2.51 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658621
Side View
Table 59.0%Crown 38.3°Girdle: MED-THKPavilion 38.9°Culet: NoneDepth 67.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $2,970 USD|Low: $514 USD|High: $3,010 USD|Avg: $1,466 USD|-1.3%
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
November 3, 2026
Retailer 4$514 USD
Retailer 11$539 USD
Retailer 8$618 USD
Retailer 13$860 USD
Retailer 12$869 USD
Retailer 6$893 USD
Retailer 2$944 USD
Retailer 16$1,233 USD
Retailer 14$1,266 USD
Retailer 10$1,375 USD
Retailer 5$1,863 USD
Retailer 15$2,022 USD
Retailer 9$2,093 USD
Retailer 3$2,132 USD
Retailer 7$2,455 USD
Brilliant Earth$2,970 USD

33 data points across 16 retailers

16 retailers$514 USD to $2,970 USD

A
Cheapest Retailer
-
$514 USD
Final sale: no returns
A
Retailer 2
-
$539 USD
£424 GBP
View
Retailer 3
-
$618 USD
View
Price last confirmed 23 days ago
A
Retailer 4
-
$860 USD
View
A
Retailer 5
-
$869 USD
€828 EUR
View
A
Retailer 6
-
$893 USD
View
A
Retailer 7
-
$944 USD
£743 GBP
View
B+
Retailer 8
-
$1,233 USD
View
B+
Retailer 9
-
$1,266 USD
A$1,947 AUD
View
B+
Retailer 10
-
$1,375 USD
ZAR 22,206 ZAR
View
B+
Retailer 11
-
$1,863 USD
View
B
Retailer 12
-
$2,022 USD
View
B
Retailer 13
-
$2,093 USD
£1,648 GBP
View
B
Retailer 14
-
$2,132 USD
View
B
Retailer 15
-
$2,455 USD
View
Most Expensive
B
Brilliant Earth
21580754A · Nov 2
$2,970 USD
View
15 more retailers have this diamond
Prices start from $514 USDSave up to $2,456 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
2.51ct Cushion
$514 USD