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Cushion|Lab Grown|IGI

2.60ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG801674914

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

Certificate IGI LG801674914

Diamond specifications and retailer prices

From $325 USD
As of October 30, 2026
Save $2,005 USD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,330 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.6ct lab-grown cushion diamond

This 2.6ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG801674914 or 801674914. Listed at 15 retailers as of October 30, 2026, with prices from $325 to $2,330, a $2,005 spread on the same certified stone. Brilliant Earth lists it at $2,330. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.60
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801674914
Dimensions8.15 × 8.03 × 4.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.15 mm8.03 mm2.60 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801674914
Side View
Table 67.0%Crown 34.2°Girdle: STK-THKPavilion 33.4°Culet: NoneDepth 58.9%

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 30
Current: $2,330 USD|Low: $308 USD|High: $4,000 USD|Avg: $1,061 USD|-39.9%
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
October 31, 2026
Retailer 15$325 USD
Retailer 7$341 USD
Retailer 9$453 USD
Retailer 4$485 USD
Retailer 8$520 USD
Retailer 10$593 USD
Retailer 2$633 USD
Retailer 12$739 USD
Retailer 14$836 USD
Retailer 3$1,157 USD
Retailer 5$1,209 USD
Retailer 11$1,454 USD
Retailer 13$1,484 USD
Retailer 6$2,045 USD
Brilliant Earth$2,330 USD

35 data points across 15 retailers

15 retailers$325 USD to $2,330 USD

A
Cheapest Retailer
-
$325 USD
Final sale: no returns
A
Retailer 2
-
$341 USD
View
A
Retailer 3
-
$453 USD
£357 GBP
View
B+
Retailer 4
-
$485 USD
View
A
Retailer 5
-
$520 USD
View
A
Retailer 6
-
$593 USD
€565 EUR
View
A
Retailer 7
-
$633 USD
£499 GBP
View
A
Retailer 8
-
$739 USD
View
B+
Retailer 9
-
$836 USD
View
B
Retailer 10
-
$1,157 USD
SGD 1,564 SGD
View
B+
Retailer 11
-
$1,209 USD
View
B
Retailer 12
-
$1,454 USD
£1,145 GBP
View
B
Retailer 13
-
$1,484 USD
View
Retailer 14
-
$2,045 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
20573624A · Oct 30
$2,330 USD
View
14 more retailers have this diamond
Prices start from $325 USDSave up to $2,005 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
2.60ct Cushion
$325 USD