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Cushion|Lab Grown|IGI

1.66ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG532262653

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG532262653

Diamond specifications and retailer prices

From ₹28,663 INR
$302 USD
As of November 1, 2026
Save ₹1,22,244 INR (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: ₹1,50,907 INR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.66ct lab-grown cushion diamond

This 1.66ct 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 LG532262653 or 532262653. Listed at 14 retailers as of November 1, 2026, with prices from ₹28,663 to ₹1,50,907, a ₹1,22,244 spread on the same certified stone. Brilliant Earth lists it at ₹1,50,907. 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

1.66
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532262653
Dimensions7.05 × 6.85 × 4.46 mm
L/W Ratio1.03
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
7.05 mm6.85 mm1.66 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532262653
Side View
Table 65.0%Crown 35.4°Girdle: MED-THKPavilion 38.9°Culet: NoneDepth 65.1%

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: Nov 1
Current: ₹1,50,907 INR|Low: ₹28,663 INR|High: ₹1,51,856 INR|Avg: ₹67,785 INR|-0.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 3₹28,663 INR
Retailer 11₹31,700 INR
Retailer 6₹35,309 INR
Retailer 12₹42,520 INR
Retailer 9₹42,710 INR
Retailer 7₹55,716 INR
Retailer 5₹56,405 INR
Retailer 4₹57,136 INR
Retailer 2₹81,148 INR
Retailer 10₹1,02,503 INR
Retailer 8₹1,27,768 INR
Brilliant Earth₹1,50,907 INR

43 data points across 12 retailers

14 retailers₹28,663 INR to ₹1,50,907 INR

A
Cheapest Retailer
-
₹28,663 INR
$302 USD
Final sale: no returns
Retailer 2
-
₹31,700 INR
$334 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
₹35,309 INR
£293 GBP
View
B+
Retailer 4
-
₹42,520 INR
$448 USD
View
A
Retailer 5
-
₹42,710 INR
$450 USD
View
A
Retailer 6
-
₹55,716 INR
£462 GBP
View
A
Retailer 7
-
₹56,405 INR
€566 EUR
View
B+
Retailer 8
-
₹57,136 INR
$602 USD
View
B+
Retailer 9
-
₹57,136 INR
$602 USD
View
B+
Retailer 10
-
₹81,148 INR
$855 USD
View
Retailer 11
-
₹1,02,503 INR
$1,080 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
₹1,06,817 INR
$1,125 USD
View
B
Retailer 13
-
₹1,27,768 INR
£1,060 GBP
View
Most Expensive
B
Brilliant Earth
11259540A · Nov 2
₹1,50,907 INR
$1,590 USD
View
13 more retailers have this diamond
Prices start from ₹28,663 INRSave up to ₹1,22,244 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
1.66ct Cushion
₹28,663 INR