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Cushion|Lab Grown|IGI

1.51ct F VVS1 Cushion Lab Grown Diamond

GD • F/VVS1 • IGI LG620417166

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG620417166

Diamond specifications and retailer prices

From $271 USD
As of November 4, 2026
Save $1,079 USD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,350 USD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a standard cut grade and certified by IGI LG620417166 or 620417166. Listed at 13 retailers as of November 1, 2026, with prices from $271 to $1,350, a $1,079 spread on the same certified stone. Rare Carat lists it at $1,350. 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

1.51
Carat
F
Color
VVS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620417166
Dimensions6.78 × 6.65 × 4.47 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.78 mm6.65 mm1.51 ctF / VVS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG620417166
Side View
Table 61.0%Crown 35.9°Girdle: STK-VTKPavilion 40°Culet: NoneDepth 67.2%

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 4
Current: $1,350 USD|Low: $271 USD|High: $1,370 USD|Avg: $751 USD|-1.5%
Rare Carat
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
November 5, 2026
Retailer 4$271 USD
Retailer 14$303 USD
Retailer 6$470 USD
Retailer 11$506 USD
Retailer 8$518 USD
Retailer 9$540 USD
Retailer 10$551 USD
Retailer 2$564 USD
Retailer 5$619 USD
Retailer 13$1,017 USD
Retailer 12$1,173 USD
Retailer 7$1,201 USD
Retailer 3$1,223 USD
Rare Carat$1,350 USD

43 data points across 14 retailers

13 retailers$271 USD to $1,350 USD

A
Cheapest Retailer
-
$271 USD
Final sale: no returns
Retailer 2
-
$303 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$506 USD
View
A
Retailer 4
-
$518 USD
View
B+
Retailer 5
-
$540 USD
View
B+
Retailer 6
-
$551 USD
View
B+
Retailer 7
-
$564 USD
View
B+
Retailer 8
-
$619 USD
View
B
Retailer 9
-
$1,017 USD
View
B
Retailer 10
-
$1,173 USD
View
B
Retailer 11
-
$1,201 USD
View
B
Retailer 12
-
$1,223 USD
View
Most Expensive
B
Rare Carat
C5H-4802_l_620417166 · Nov 1
$1,350 USD
View
12 more retailers have this diamond
Prices start from $271 USDSave up to $1,079 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
1.51ct Cushion
$271 USD