Cushion|Lab Grown|IGI

1.30ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG831696571

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831696571

Diamond specifications and retailer prices

From $310 USD
As of October 25, 2026
Save $2,360 USD (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,670 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.3ct lab-grown cushion diamond

This 1.3ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831696571 or 831696571. Listed at 16 retailers as of October 25, 2026, with prices from $310 to $2,670, a $2,360 spread on the same certified stone. Brilliant Earth lists it at $2,670. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831696571
Dimensions7.97 × 5.36 × 3.57 mm
L/W Ratio1.49
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
7.97 mm5.36 mm1.30 ctE / IF
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831696571
Side View
Table 62.0%Crown 33.3°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 66.6%

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 25
Current: $2,670 USD|Low: $310 USD|High: $2,670 USD|Avg: $1,016 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
October 29, 2026
Retailer 12$310 USD
Retailer 16$330 USD
Retailer 3$343 USD
Retailer 13$465 USD
Retailer 6$519 USD
Retailer 11$533 USD
Retailer 5$565 USD
Retailer 2$590 USD
Retailer 9$671 USD
Retailer 15$892 USD
Retailer 4$1,049 USD
Retailer 10$1,250 USD
Retailer 8$1,320 USD
Retailer 14$1,790 USD
Retailer 7$2,006 USD
Brilliant Earth$2,670 USD

17 data points across 16 retailers

16 retailers$310 USD to $2,670 USD

A
Cheapest Retailer
-
$310 USD
A
Retailer 2
-
$330 USD
£260 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
$343 USD
View
Final sale: no returns
A
Retailer 4
-
$465 USD
View
A
Retailer 5
-
$519 USD
View
A
Retailer 6
-
$533 USD
ZAR 8,607 ZAR
View
A
Retailer 7
-
$565 USD
View
A
Retailer 8
-
$590 USD
£465 GBP
View
A
Retailer 9
-
$671 USD
€639 EUR
View
A
Retailer 10
-
$892 USD
View
A
Retailer 11
-
$1,049 USD
View
B+
Retailer 12
-
$1,250 USD
£984 GBP
View
B+
Retailer 13
-
$1,320 USD
SGD 1,784 SGD
View
B+
Retailer 14
-
$1,790 USD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$2,006 USD
View
Most Expensive
B
Brilliant Earth
21813627A · Oct 29
$2,670 USD
View
15 more retailers have this diamond
Prices start from $310 USDSave up to $2,360 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
1.30ct Cushion
$310 USD