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Cushion|Lab Grown|IGI

1.78ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG674551669

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG674551669

Diamond specifications and retailer prices

From ₹54,018 INR
$567 USD
As of October 28, 2026
Save ₹3,08,008 INR (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: ₹3,62,026 INR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.78ct lab-grown cushion diamond

This 1.78ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG674551669 or 674551669. Listed at 16 retailers as of October 28, 2026, with prices from ₹54,018 to ₹3,62,026, a ₹3,08,008 spread on the same certified stone. Brilliant Earth lists it at ₹3,62,026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674551669
Dimensions8.20 × 6.42 × 4.48 mm
L/W Ratio1.28
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
8.20 mm6.42 mm1.78 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674551669
Side View
Table 61.0%Crown 32.5°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 69.8%

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: Oct 28
Current: ₹3,62,026 INR|Low: ₹54,018 INR|High: ₹3,73,458 INR|Avg: ₹1,46,724 INR|-3.1%
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 30, 2026
Retailer 4₹54,018 INR
Retailer 3₹59,830 INR
Retailer 8₹64,307 INR
Retailer 12₹80,217 INR
Retailer 2₹99,703 INR
Retailer 5₹1,00,834 INR
Retailer 6₹1,02,894 INR
Retailer 11₹1,35,664 INR
Retailer 9₹1,40,447 INR
Retailer 7₹2,50,213 INR
Retailer 10₹2,79,617 INR
Brilliant Earth₹3,62,026 INR

41 data points across 12 retailers

16 retailers₹54,018 INR to ₹3,62,026 INR

A
Cheapest Retailer
-
₹54,018 INR
$567 USD
Final sale: no returns
Retailer 2
-
₹59,830 INR
$628 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
₹64,307 INR
$675 USD
View
A
Retailer 4
-
₹80,217 INR
$842 USD
View
A
Retailer 5
-
₹99,703 INR
£824 GBP
View
A
Retailer 6
-
₹1,00,834 INR
€1,008 EUR
View
A
Retailer 7
-
₹1,02,894 INR
ZAR 17,448 ZAR
View
A
Retailer 8
-
₹1,35,664 INR
$1,424 USD
View
A
Retailer 9
-
₹1,36,808 INR
$1,436 USD
View
Retailer 10
-
₹1,40,447 INR
A$2,268 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
₹1,94,889 INR
$2,046 USD
View
B+
Retailer 12
-
₹2,06,987 INR
$2,173 USD
View
B+
Retailer 13
-
₹2,50,213 INR
£2,068 GBP
View
B+
Retailer 14
-
₹2,79,617 INR
$2,935 USD
View
Retailer 15
-
₹3,25,823 INR
$3,420 USD
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
21311889A · Oct 29
₹3,62,026 INR
$3,800 USD
View
15 more retailers have this diamond
Prices start from ₹54,018 INRSave up to ₹3,08,008 INR

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
1.78ct Cushion
₹54,018 INR