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Cushion|Lab Grown|IGI

1.50ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG678551060

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

Certificate IGI LG678551060

Diamond specifications and retailer prices

From ₹19,845 INR
$209 USD
As of November 1, 2026
Save ₹87,449 INR (82%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: ₹1,07,294 INR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG678551060 or 678551060. Listed at 7 retailers as of October 31, 2026, with prices from ₹19,845 to ₹1,07,294, a ₹87,449 spread on the same certified stone. Brilliant Earth lists it at ₹1,07,294. 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

1.50
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678551060
Dimensions6.66 × 6.55 × 4.12 mm
L/W Ratio1.02
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
6.66 mm6.55 mm1.50 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678551060
Side View
Table 61.0%Crown 34°Girdle: STK-VTKPavilion 36.9°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: ₹1,07,294 INR|Low: ₹14,337 INR|High: ₹1,25,334 INR|Avg: ₹63,263 INR|-14.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8₹19,845 INR
Retailer 5₹36,841 INR
Retailer 9₹39,061 INR
Retailer 4₹39,979 INR
Retailer 7₹45,481 INR
Retailer 6₹54,691 INR
Retailer 10₹62,002 INR
Retailer 11₹74,425 INR
Retailer 2₹97,193 INR
Brilliant Earth₹1,07,294 INR
Retailer 3₹1,11,996 INR

26 data points across 11 retailers

7 retailers₹19,845 INR to ₹1,07,294 INR

A
Cheapest Retailer
-
₹19,845 INR
$209 USD
Final sale: no returns
B+
Retailer 2
-
₹36,841 INR
$388 USD
View
Retailer 3
-
₹39,979 INR
€401 EUR
View
Price last confirmed 7 days ago
A
Retailer 4
-
₹45,481 INR
$479 USD
View
B+
Retailer 5
-
₹54,691 INR
$576 USD
View
B
Retailer 6
-
₹97,193 INR
£806 GBP
View
Most Expensive
B
Brilliant Earth
15325425A · Oct 31
₹1,07,294 INR
$1,130 USD
View
6 more retailers have this diamond
Prices start from ₹19,845 INRSave up to ₹87,449 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
1.50ct Cushion
₹19,845 INR