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Cushion|Lab Grown|IGI

1.15ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG712530525

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG712530525

Diamond specifications and retailer prices

From $425 USD
As of October 29, 2026
Save $1,785 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,210 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.15ct lab-grown cushion diamond

This 1.15ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG712530525 or 712530525. Listed at 11 retailers as of October 28, 2026, with prices from $425 to $2,210, a $1,785 spread on the same certified stone. Brilliant Earth lists it at $2,210. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.15
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712530525
Dimensions7.00 × 5.55 × 3.68 mm
L/W Ratio1.26
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
7.00 mm5.55 mm1.15 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712530525
Side View
Table 60.0%Crown 33.2°Girdle: MED-VTKPavilion 35.5°Culet: NoneDepth 66.3%

Caratlytics Score

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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: Oct 29
Current: $2,210 USD|Low: $255 USD|High: $2,270 USD|Avg: $1,061 USD|-2.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 11$255 USD
Retailer 6$425 USD
Retailer 8$471 USD
Retailer 9$516 USD
Retailer 3$557 USD
Retailer 2$744 USD
Retailer 10$921 USD
Retailer 5$1,224 USD
Retailer 4$1,616 USD
Retailer 12$1,660 USD
Retailer 7$2,140 USD
Brilliant Earth$2,210 USD

27 data points across 12 retailers

11 retailers$425 USD to $2,210 USD

A
Cheapest Retailer
-
$425 USD
A
Retailer 2
-
$471 USD
View
A
Retailer 3
-
$516 USD
€491 EUR
View
A
Retailer 4
-
$557 USD
View
A
Retailer 5
-
$744 USD
A$1,145 AUD
View
A
Retailer 6
-
$921 USD
View
Retailer 7
-
$1,224 USD
£964 GBP
View
Price last confirmed 7 days ago
Retailer 8
-
$1,616 USD
A$2,486 AUD
View
Price last confirmed 25 days ago
Retailer 9
-
$1,660 USD
View
Price last confirmed 14 days ago
B
Retailer 10
-
$2,140 USD
View
Most Expensive
B
Brilliant Earth
14608178Y · Oct 28
$2,210 USD
View
10 more retailers have this diamond
Prices start from $425 USDSave up to $1,785 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
1.15ct Cushion
$425 USD