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Cushion|Lab Grown|IGI

1.65ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG541252029

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG541252029

Diamond specifications and retailer prices

From ₹21,364 INR
$225 USD
As of October 30, 2026
Save ₹1,19,162 INR (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: ₹1,40,526 INR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.65ct lab-grown cushion diamond

This 1.65ct 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 LG541252029 or 541252029. Listed at 14 retailers as of October 29, 2026, with prices from ₹21,364 to ₹1,40,526, a ₹1,19,162 spread on the same certified stone. Brilliant Earth lists it at ₹1,40,526. 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

1.65
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541252029
Dimensions6.74 × 6.63 × 4.20 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
6.74 mm6.63 mm1.65 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541252029
Side View
Table 64.0%Crown 34.5°Girdle: MED-VTKPavilion 32.5°Culet: NoneDepth 63.3%

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: ₹1,40,526 INR|Low: ₹21,364 INR|High: ₹1,50,021 INR|Avg: ₹62,100 INR|-6.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11₹21,364 INR
Retailer 9₹23,832 INR
Retailer 7₹32,283 INR
Retailer 5₹39,181 INR
Retailer 4₹43,759 INR
Retailer 3₹48,254 INR
Retailer 10₹55,831 INR
Retailer 2₹57,730 INR
Retailer 8₹99,223 INR
Retailer 6₹1,12,025 INR
Brilliant Earth₹1,40,526 INR

44 data points across 11 retailers

14 retailers₹21,364 INR to ₹1,40,526 INR

A
Cheapest Retailer
-
₹21,364 INR
$225 USD
Final sale: no returns
A
Retailer 2
-
₹23,832 INR
$251 USD
View
B+
Retailer 3
-
₹32,283 INR
$340 USD
View
A
Retailer 4
-
₹39,181 INR
€393 EUR
View
A
Retailer 5
-
₹43,759 INR
£363 GBP
View
A
Retailer 6
-
₹48,254 INR
$508 USD
View
A
Retailer 7
-
₹54,311 INR
$572 USD
View
A
Retailer 8
-
₹55,831 INR
$588 USD
View
A
Retailer 9
-
₹57,730 INR
$608 USD
View
B+
Retailer 10
-
₹81,674 INR
$860 USD
View
Retailer 11
-
₹99,223 INR
$1,045 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
₹1,12,025 INR
£929 GBP
View
B
Retailer 13
-
₹1,14,059 INR
$1,201 USD
View
Most Expensive
B
Brilliant Earth
10789223A · Oct 29
₹1,40,526 INR
$1,480 USD
View
13 more retailers have this diamond
Prices start from ₹21,364 INRSave up to ₹1,19,162 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
1.65ct Cushion
₹21,364 INR