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Cushion|Lab Grown|IGI

1.28ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG825660202

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825660202

Diamond specifications and retailer prices

From $461 USD
As of November 4, 2026
Save $1,959 USD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,420 USD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825660202 or 825660202. Listed at 15 retailers as of November 4, 2026, with prices from $461 to $2,420, a $1,959 spread on the same certified stone. Brilliant Earth lists it at $2,420. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.9°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825660202
Dimensions8.30 × 5.50 × 3.68 mm
L/W Ratio1.51
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
8.30 mm5.50 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825660202
Side View
Table 61.0%Crown 30.9°Girdle: MED-THKPavilion 34.3°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: $2,420 USD|Low: $461 USD|High: $2,760 USD|Avg: $1,269 USD|-12.3%
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
November 5, 2026
Retailer 9$461 USD
Retailer 5$514 USD
Retailer 12$600 USD
Retailer 13$709 USD
Retailer 11$719 USD
Retailer 8$802 USD
Retailer 3$886 USD
Retailer 2$887 USD
Retailer 10$1,134 USD
Retailer 14$1,484 USD
Retailer 6$1,660 USD
Retailer 7$1,721 USD
Retailer 4$1,887 USD
Brilliant Earth$2,420 USD

36 data points across 14 retailers

15 retailers$461 USD to $2,420 USD

A
Cheapest Retailer
-
$461 USD
Final sale: no returns
Retailer 2
-
$514 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$600 USD
View
A
Retailer 4
-
$709 USD
View
A
Retailer 5
-
$719 USD
View
A
Retailer 6
-
$802 USD
View
A
Retailer 7
-
$886 USD
View
A
Retailer 8
-
$887 USD
View
B+
Retailer 9
-
$1,134 USD
View
B+
Retailer 10
-
$1,484 USD
View
Retailer 11
-
$1,660 USD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
$1,721 USD
View
B+
Retailer 13
-
$1,887 USD
View
Retailer 14
-
$1,981 USD
View
Price last confirmed 27 days ago
Most Expensive
B
Brilliant Earth
21434032A · Nov 4
$2,420 USD
View
14 more retailers have this diamond
Prices start from $461 USDSave up to $1,959 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
1.28ct Cushion
$461 USD