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Cushion|Lab Grown|IGI

1.51ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG681551703

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG681551703

Diamond specifications and retailer prices

From $405 USD
As of November 4, 2026
Save $1,275 USD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,680 USD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG681551703 or 681551703. Listed at 15 retailers as of November 3, 2026, with prices from $405 to $1,680, a $1,275 spread on the same certified stone. Brilliant Earth lists it at $1,680. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681551703
Dimensions5.96 × 5.96 × 3.99 mm
L/W Ratio1.00
Girdle conditionFaceted
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
5.96 mm5.96 mm1.51 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681551703
Side View
Table 63.0%Crown 34.7°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 66.9%

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: $1,680 USD|Low: $301 USD|High: $1,680 USD|Avg: $798 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
November 5, 2026
Retailer 4$301 USD
Retailer 16$320 USD
Retailer 5$405 USD
Retailer 11$492 USD
Retailer 9$520 USD
Retailer 2$566 USD
Retailer 15$619 USD
Retailer 3$627 USD
Retailer 13$702 USD
Retailer 12$749 USD
Retailer 6$970 USD
Retailer 8$1,020 USD
Retailer 10$1,207 USD
Retailer 7$1,225 USD
Retailer 14$1,330 USD
Brilliant Earth$1,680 USD

42 data points across 16 retailers

15 retailers$405 USD to $1,680 USD

Retailer 1
-
$301 USD
Price last confirmed 11 days ago
B+
Retailer 2
-
$405 USD
View
A
Retailer 3
-
$492 USD
View
A
Retailer 4
-
$520 USD
View
A
Retailer 5
-
$566 USD
View
A
Retailer 6
-
$619 USD
View
A
Retailer 7
-
$627 USD
View
Retailer 8
-
$702 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$749 USD
View
B+
Retailer 10
-
$970 USD
View
B+
Retailer 11
-
$1,020 USD
View
B+
Retailer 12
-
$1,207 USD
View
B
Retailer 13
-
$1,225 USD
View
B
Retailer 14
-
$1,330 USD
View
Most Expensive
B
Brilliant Earth
18479290A · Nov 3
$1,680 USD
View
14 more retailers have this diamond
Prices start from $405 USDSave up to $1,275 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
$405 USD