Cushion|Lab Grown|IGI

1.51ct H VVS2 Cushion Lab Grown Diamond

ID • H/VVS2 • IGI LG825668318

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

Certificate IGI LG825668318

Diamond specifications and retailer prices

From $468 USD
As of October 30, 2026
Save $1,022 USD (69%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,490 USD at Brilliant Earth · As of October 29, 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 H colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG825668318 or 825668318. Listed at 6 retailers as of October 29, 2026, with prices from $468 to $1,490, a $1,022 spread on the same certified stone. Brilliant Earth lists it at $1,490. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Color
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825668318
Dimensions6.59 × 6.53 × 4.52 mm
L/W Ratio1.01
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
6.59 mm6.53 mm1.51 ctH / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825668318
Side View
Table 65.0%Crown 35.6°Girdle: STK-THKPavilion 41.5°Culet: NoneDepth 69.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,107 USD|Low: $468 USD|High: $1,107 USD|Avg: $788 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 5$468 USD
Retailer 3$496 USD
Retailer 2$900 USD
Retailer 4$937 USD
Retailer 1$1,107 USD

5 data points across 5 retailers

6 retailers$468 USD to $1,490 USD

A
Cheapest Retailer
-
$468 USD
A
Retailer 2
-
$496 USD
View
Retailer 3
-
$900 USD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$937 USD
View
B+
Retailer 5
-
$1,107 USD
£872 GBP
View
Most Expensive
B
Brilliant Earth
22301739A · Oct 29
$1,490 USD
View
5 more retailers have this diamond
Prices start from $468 USDSave up to $1,022 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
$468 USD