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Cushion|Lab Grown|IGI

1.78ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG791618528

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG791618528

Diamond specifications and retailer prices

From ₹1,17,548 INR
$1,238 USD
As of October 31, 2026
Save ₹4,19,869 INR (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: ₹9,44,753 INR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG791618528 or 791618528. Listed at 16 retailers as of October 29, 2026, with a 357% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.78
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.2°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791618528
Dimensions8.79 × 6.48 × 4.07 mm
L/W Ratio1.36
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
8.79 mm6.48 mm1.78 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791618528
Side View
Table 59.0%Crown 30.2°Girdle: MED-STKPavilion 33.6°Culet: NoneDepth 62.7%

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 31
Current: ₹1,91,901 INR|Low: ₹1,17,548 INR|High: ₹5,53,559 INR|Avg: ₹2,72,621 INR|-0.5%
Retailer 1
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 7₹1,17,548 INR
Retailer 5₹1,19,067 INR
Retailer 15₹1,23,435 INR
Retailer 12₹1,40,051 INR
Retailer 10₹1,73,759 INR
Retailer 1₹1,91,901 INR
Retailer 8₹2,50,442 INR
Retailer 11₹2,87,224 INR
Retailer 3₹3,16,089 INR
Retailer 4₹3,28,478 INR
Retailer 6₹3,34,642 INR
Retailer 14₹3,57,297 INR
Retailer 9₹4,40,020 INR
Retailer 2₹4,48,419 INR
Retailer 13₹5,37,417 INR

43 data points across 15 retailers

16 retailers₹1,17,548 INR to ₹5,37,417 INR

A
Cheapest Retailer
-
₹1,17,548 INR
$1,238 USD
A
Retailer 2
-
₹1,19,067 INR
$1,254 USD
View
Final sale: no returns
A
Retailer 3
-
₹1,40,051 INR
$1,475 USD
View
B+
Retailer 4
-
₹1,73,759 INR
$1,830 USD
View
B+
Retailer 5
-
₹1,91,901 INR
£1,591 GBP
View
B+
Retailer 6
-
₹2,50,442 INR
ZAR 42,611 ZAR
View
B
Retailer 7
-
₹3,16,089 INR
$3,329 USD
View
B
Retailer 8
-
₹3,28,478 INR
£2,724 GBP
View
B
Retailer 9
-
₹3,34,642 INR
$3,524 USD
View
B
Retailer 10
-
₹3,57,297 INR
$3,763 USD
View
B
Retailer 11
-
₹3,88,279 INR
$4,089 USD
View
B
Retailer 12
-
₹4,40,020 INR
£3,649 GBP
View
B
Retailer 13
-
₹4,48,419 INR
$4,723 USD
View
B
Retailer 14
-
₹4,83,594 INR
$5,093 USD
View
B
Retailer 15
-
₹5,37,417 INR
$5,660 USD
View
Most Expensive
Do Amore Diamonds
27-B8207601F · Oct 31
₹9,44,753 INR
$9,950 USD
View
Price under review
15 more retailers have this diamond
Prices start from ₹1,17,548 INRSave up to ₹4,19,869 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
₹1,17,548 INR